iSharkFly-Docs/java-tutorials
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Merge branch 'master' of github.com:eugenp/tutorials into feature/BAEL-3451_bash_functions

Browse Source
This commit is contained in:
Sorin Zamfir 2020-01-12 20:56:57 +02:00
commit eb90d115f3
125 changed files with 2052 additions and 252 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
algorithms-miscellaneous-5/src/main/java/com/baeldung/algorithms/minheapmerge/HeapNode.java Normal file
View File

@ -0,0 +1,13 @@
package com.baeldung.algorithms.minheapmerge;
public class HeapNode {
int element;
int arrayIndex;
int nextElementIndex = 1;
public HeapNode(int element, int arrayIndex) {
this.element = element;
this.arrayIndex = arrayIndex;
}
}

88
algorithms-miscellaneous-5/src/main/java/com/baeldung/algorithms/minheapmerge/MinHeap.java Normal file
View File

@ -0,0 +1,88 @@
package com.baeldung.algorithms.minheapmerge;
public class MinHeap {
HeapNode[] heapNodes;
public MinHeap(HeapNode heapNodes[]) {
this.heapNodes = heapNodes;
heapifyFromLastLeafsParent();
}
void heapifyFromLastLeafsParent() {
int lastLeafsParentIndex = getParentNodeIndex(heapNodes.length);
while (lastLeafsParentIndex >= 0) {
heapify(lastLeafsParentIndex);
lastLeafsParentIndex--;
}
}
void heapify(int index) {
int leftNodeIndex = getLeftNodeIndex(index);
int rightNodeIndex = getRightNodeIndex(index);
int smallestElementIndex = index;
if (leftNodeIndex < heapNodes.length && heapNodes[leftNodeIndex].element < heapNodes[index].element) {
smallestElementIndex = leftNodeIndex;
}
if (rightNodeIndex < heapNodes.length && heapNodes[rightNodeIndex].element < heapNodes[smallestElementIndex].element) {
smallestElementIndex = rightNodeIndex;
}
if (smallestElementIndex != index) {
swap(index, smallestElementIndex);
heapify(smallestElementIndex);
}
}
int getParentNodeIndex(int index) {
return (index - 1) / 2;
}
int getLeftNodeIndex(int index) {
return (2 * index + 1);
}
int getRightNodeIndex(int index) {
return (2 * index + 2);
}
HeapNode getRootNode() {
return heapNodes[0];
}
void heapifyFromRoot() {
heapify(0);
}
void swap(int i, int j) {
HeapNode temp = heapNodes[i];
heapNodes[i] = heapNodes[j];
heapNodes[j] = temp;
}
static int[] merge(int[][] array) {
HeapNode[] heapNodes = new HeapNode[array.length];
int resultingArraySize = 0;
for (int i = 0; i < array.length; i++) {
HeapNode node = new HeapNode(array[i][0], i);
heapNodes[i] = node;
resultingArraySize += array[i].length;
}
MinHeap minHeap = new MinHeap(heapNodes);
int[] resultingArray = new int[resultingArraySize];
for (int i = 0; i < resultingArraySize; i++) {
HeapNode root = minHeap.getRootNode();
resultingArray[i] = root.element;
if (root.nextElementIndex < array[root.arrayIndex].length) {
root.element = array[root.arrayIndex][root.nextElementIndex++];
} else {
root.element = Integer.MAX_VALUE;
}
minHeap.heapifyFromRoot();
}
return resultingArray;
}
}

22
algorithms-miscellaneous-5/src/test/java/com/baeldung/algorithms/minheapmerge/MinHeapUnitTest.java Normal file
View File

@ -0,0 +1,22 @@
package com.baeldung.algorithms.minheapmerge;
import static org.hamcrest.CoreMatchers.equalTo;
import static org.hamcrest.CoreMatchers.is;
import static org.junit.Assert.assertThat;
import org.junit.Test;
public class MinHeapUnitTest {
private final int[][] inputArray = { { 0, 6 }, { 1, 5, 10, 100 }, { 2, 4, 200, 650 } };
private final int[] expectedArray = { 0, 1, 2, 4, 5, 6, 10, 100, 200, 650 };
@Test
public void givenSortedArrays_whenMerged_thenShouldReturnASingleSortedarray() {
int[] resultArray = MinHeap.merge(inputArray);
assertThat(resultArray.length, is(equalTo(10)));
assertThat(resultArray, is(equalTo(expectedArray)));
}
}

4
algorithms-sorting-2/.gitignore vendored Normal file
View File

@ -0,0 +1,4 @@
/target/
.settings/
.classpath
.project

64
algorithms-sorting-2/pom.xml Normal file
View File

@ -0,0 +1,64 @@
<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<artifactId>algorithms-sorting-2</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>algorithms-sorting-2</name>
<parent>
<groupId>com.baeldung</groupId>
<artifactId>parent-modules</artifactId>
<version>1.0.0-SNAPSHOT</version>
</parent>
<dependencies>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-math3</artifactId>
<version>${commons-math3.version}</version>
</dependency>
<dependency>
<groupId>commons-codec</groupId>
<artifactId>commons-codec</artifactId>
<version>${commons-codec.version}</version>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>${lombok.version}</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-api</artifactId>
<version>${junit-jupiter-api.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.assertj</groupId>
<artifactId>assertj-core</artifactId>
<version>${org.assertj.core.version}</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>exec-maven-plugin</artifactId>
<version>${exec-maven-plugin.version}</version>
</plugin>
</plugins>
</pluginManagement>
</build>
<properties>
<commons-math3.version>3.6.1</commons-math3.version>
<org.assertj.core.version>3.9.0</org.assertj.core.version>
<commons-codec.version>1.11</commons-codec.version>
<junit-jupiter-api.version>5.3.1</junit-jupiter-api.version>
</properties>
</project>

66
algorithms-sorting-2/src/main/java/com/baeldung/algorithms/quicksort/BentleyMcIlroyPartioning.java Normal file
View File

@ -0,0 +1,66 @@
package com.baeldung.algorithms.quicksort;
import static com.baeldung.algorithms.quicksort.SortingUtils.swap;
public class BentleyMcIlroyPartioning {
public static Partition partition(int input[], int begin, int end) {
int left = begin, right = end;
int leftEqualKeysCount = 0, rightEqualKeysCount = 0;
int partitioningValue = input[end];
while (true) {
while (input[left] < partitioningValue)
left++;
while (input[right] > partitioningValue) {
if (right == begin)
break;
right--;
}
if (left == right && input[left] == partitioningValue) {
swap(input, begin + leftEqualKeysCount, left);
leftEqualKeysCount++;
left++;
}
if (left >= right) {
break;
}
swap(input, left, right);
if (input[left] == partitioningValue) {
swap(input, begin + leftEqualKeysCount, left);
leftEqualKeysCount++;
}
if (input[right] == partitioningValue) {
swap(input, right, end - rightEqualKeysCount);
rightEqualKeysCount++;
}
left++; right--;
}
right = left - 1;
for (int k = begin; k < begin + leftEqualKeysCount; k++, right--) {
if (right >= begin + leftEqualKeysCount)
swap(input, k, right);
}
for (int k = end; k > end - rightEqualKeysCount; k--, left++) {
if (left <= end - rightEqualKeysCount)
swap(input, left, k);
}
return new Partition(right + 1, left - 1);
}
public static void quicksort(int input[], int begin, int end) {
if (end <= begin)
return;
Partition middlePartition = partition(input, begin, end);
quicksort(input, begin, middlePartition.getLeft() - 1);
quicksort(input, middlePartition.getRight() + 1, end);
}
}

38
algorithms-sorting-2/src/main/java/com/baeldung/algorithms/quicksort/DutchNationalFlagPartioning.java Normal file
View File

@ -0,0 +1,38 @@
package com.baeldung.algorithms.quicksort;
import static com.baeldung.algorithms.quicksort.SortingUtils.compare;
import static com.baeldung.algorithms.quicksort.SortingUtils.swap;
public class DutchNationalFlagPartioning {
public static Partition partition(int[] a, int begin, int end) {
int lt = begin, current = begin, gt = end;
int partitioningValue = a[begin];
while (current <= gt) {
int compareCurrent = compare(a[current], partitioningValue);
switch (compareCurrent) {
case -1:
swap(a, current++, lt++);
break;
case 0:
current++;
break;
case 1:
swap(a, current, gt--);
break;
}
}
return new Partition(lt, gt);
}
public static void quicksort(int[] input, int begin, int end) {
if (end <= begin)
return;
Partition middlePartition = partition(input, begin, end);
quicksort(input, begin, middlePartition.getLeft() - 1);
quicksort(input, middlePartition.getRight() + 1, end);
}
}

29
algorithms-sorting-2/src/main/java/com/baeldung/algorithms/quicksort/Partition.java Normal file
View File

@ -0,0 +1,29 @@
package com.baeldung.algorithms.quicksort;
public class Partition {
private int left;
private int right;
public Partition(int left, int right) {
super();
this.left = left;
this.right = right;
}
public int getLeft() {
return left;
}
public void setLeft(int left) {
this.left = left;
}
public int getRight() {
return right;
}
public void setRight(int right) {
this.right = right;
}
}

32
algorithms-sorting-2/src/main/java/com/baeldung/algorithms/quicksort/SortingUtils.java Normal file
View File

@ -0,0 +1,32 @@
package com.baeldung.algorithms.quicksort;
public class SortingUtils {
public static void swap(int[] array, int position1, int position2) {
if (position1 != position2) {
int temp = array[position1];
array[position1] = array[position2];
array[position2] = temp;
}
}
public static int compare(int num1, int num2) {
if (num1 > num2)
return 1;
else if (num1 < num2)
return -1;
else
return 0;
}
public static void printArray(int[] array) {
if (array == null) {
return;
}
for (int e : array) {
System.out.print(e + " ");
}
System.out.println();
}
}

13
algorithms-sorting-2/src/main/resources/logback.xml Normal file
View File

@ -0,0 +1,13 @@
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
<encoder>
<pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n
</pattern>
</encoder>
</appender>
<root level="INFO">
<appender-ref ref="STDOUT"/>
</root>
</configuration>

16
algorithms-sorting-2/src/test/java/com/baeldung/algorithms/quicksort/BentleyMcilroyPartitioningUnitTest.java Normal file
View File

@ -0,0 +1,16 @@
package com.baeldung.algorithms.quicksort;
import org.junit.Assert;
import org.junit.Test;
public class BentleyMcilroyPartitioningUnitTest {
@Test
public void given_IntegerArray_whenSortedWithBentleyMcilroyPartitioning_thenGetSortedArray() {
int[] actual = {3, 2, 2, 2, 3, 7, 7, 3, 2, 2, 7, 3, 3};
int[] expected = {2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 7, 7, 7};
BentleyMcIlroyPartioning.quicksort(actual, 0, actual.length - 1);
Assert.assertArrayEquals(expected, actual);
}
}

15
algorithms-sorting-2/src/test/java/com/baeldung/algorithms/quicksort/DNFThreeWayQuickSortUnitTest.java Normal file
View File

@ -0,0 +1,15 @@
package com.baeldung.algorithms.quicksort;
import org.junit.Assert;
import org.junit.Test;
public class DNFThreeWayQuickSortUnitTest {
@Test
public void givenIntegerArray_whenSortedWithThreeWayQuickSort_thenGetSortedArray() {
int[] actual = {3, 5, 5, 5, 3, 7, 7, 3, 5, 5, 7, 3, 3};
int[] expected = {3, 3, 3, 3, 3, 5, 5, 5, 5, 5, 7, 7, 7};
DutchNationalFlagPartioning.quicksort(actual, 0, actual.length - 1);
Assert.assertArrayEquals(expected, actual);
}
}

2
apache-poi/pom.xml
View File

@ -32,7 +32,7 @@
</dependencies>
<properties>
<poi.version>3.15</poi.version>
<poi.version>4.1.1</poi.version>
<jexcel.version>1.0.6</jexcel.version>
</properties>

20
apache-poi/src/main/java/com/baeldung/poi/excel/ExcelCellFormatter.java Normal file
View File

@ -0,0 +1,20 @@
package com.baeldung.poi.excel;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.DataFormatter;
import org.apache.poi.ss.usermodel.FormulaEvaluator;
import org.apache.poi.ss.usermodel.Workbook;
public class ExcelCellFormatter {
public String getCellStringValue(Cell cell) {
DataFormatter formatter = new DataFormatter();
return formatter.formatCellValue(cell);
}
public String getCellStringValueWithFormula(Cell cell, Workbook workbook) {
DataFormatter formatter = new DataFormatter();
FormulaEvaluator evaluator = workbook.getCreationHelper().createFormulaEvaluator();
return formatter.formatCellValue(cell, evaluator);
}
}

83
apache-poi/src/main/java/com/baeldung/poi/excel/read/cellvalueandnotformula/CellValueAndNotFormulaHelper.java Normal file
View File

@ -0,0 +1,83 @@
package com.baeldung.poi.excel.read.cellvalueandnotformula;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.CellType;
import org.apache.poi.ss.usermodel.FormulaEvaluator;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.ss.util.CellAddress;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
public class CellValueAndNotFormulaHelper {
public Object getCellValueByFetchingLastCachedValue(String fileLocation, String cellLocation) throws IOException {
Object cellValue = new Object();
FileInputStream inputStream = new FileInputStream(new File(fileLocation));
Workbook workbook = new XSSFWorkbook(inputStream);
Sheet sheet = workbook.getSheetAt(0);
CellAddress cellAddress = new CellAddress(cellLocation);
Row row = sheet.getRow(cellAddress.getRow());
Cell cell = row.getCell(cellAddress.getColumn());
if (cell.getCellType() == CellType.FORMULA) {
switch (cell.getCachedFormulaResultType()) {
case BOOLEAN:
cellValue = cell.getBooleanCellValue();
break;
case NUMERIC:
cellValue = cell.getNumericCellValue();
break;
case STRING:
cellValue = cell.getStringCellValue();
break;
default:
cellValue = null;
}
}
workbook.close();
return cellValue;
}
public Object getCellValueByEvaluatingFormula(String fileLocation, String cellLocation) throws IOException {
Object cellValue = new Object();
FileInputStream inputStream = new FileInputStream(new File(fileLocation));
Workbook workbook = new XSSFWorkbook(inputStream);
Sheet sheet = workbook.getSheetAt(0);
FormulaEvaluator evaluator = workbook.getCreationHelper()
.createFormulaEvaluator();
CellAddress cellAddress = new CellAddress(cellLocation);
Row row = sheet.getRow(cellAddress.getRow());
Cell cell = row.getCell(cellAddress.getColumn());
if (cell.getCellType() == CellType.FORMULA) {
switch (evaluator.evaluateFormulaCell(cell)) {
case BOOLEAN:
cellValue = cell.getBooleanCellValue();
break;
case NUMERIC:
cellValue = cell.getNumericCellValue();
break;
case STRING:
cellValue = cell.getStringCellValue();
break;
default:
cellValue = null;
}
}
workbook.close();
return cellValue;
}
}

BIN
apache-poi/src/main/resources/ExcelCellFormatterTest.xlsx Normal file
View File

Binary file not shown.

BIN
apache-poi/src/main/resources/test.xlsx Normal file
View File

Binary file not shown.

87
apache-poi/src/test/java/com/baeldung/poi/excel/ExcelCellFormatterUnitTest.java Normal file
View File

@ -0,0 +1,87 @@
package com.baeldung.poi.excel;
import static org.junit.Assert.assertEquals;
import java.io.IOException;
import java.net.URISyntaxException;
import java.nio.file.Paths;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.junit.Before;
import org.junit.Test;
public class ExcelCellFormatterUnitTest {
private static final String FILE_NAME = "ExcelCellFormatterTest.xlsx";
private static final int STRING_CELL_INDEX = 0;
private static final int BOOLEAN_CELL_INDEX = 1;
private static final int RAW_NUMERIC_CELL_INDEX = 2;
private static final int FORMATTED_NUMERIC_CELL_INDEX = 3;
private static final int FORMULA_CELL_INDEX = 4;
private String fileLocation;
@Before
public void setup() throws IOException, URISyntaxException {
fileLocation = Paths.get(ClassLoader.getSystemResource(FILE_NAME).toURI()).toString();
}
@Test
public void givenStringCell_whenGetCellStringValue_thenReturnStringValue() throws IOException {
Workbook workbook = new XSSFWorkbook(fileLocation);
Sheet sheet = workbook.getSheetAt(0);
Row row = sheet.getRow(0);
ExcelCellFormatter formatter = new ExcelCellFormatter();
assertEquals("String Test", formatter.getCellStringValue(row.getCell(STRING_CELL_INDEX)));
workbook.close();
}
@Test
public void givenBooleanCell_whenGetCellStringValue_thenReturnBooleanStringValue() throws IOException {
Workbook workbook = new XSSFWorkbook(fileLocation);
Sheet sheet = workbook.getSheetAt(0);
Row row = sheet.getRow(0);
ExcelCellFormatter formatter = new ExcelCellFormatter();
assertEquals("TRUE", formatter.getCellStringValue(row.getCell(BOOLEAN_CELL_INDEX)));
workbook.close();
}
@Test
public void givenNumericCell_whenGetCellStringValue_thenReturnNumericStringValue() throws IOException {
Workbook workbook = new XSSFWorkbook(fileLocation);
Sheet sheet = workbook.getSheetAt(0);
Row row = sheet.getRow(0);
ExcelCellFormatter formatter = new ExcelCellFormatter();
assertEquals("1.234", formatter.getCellStringValue(row.getCell(RAW_NUMERIC_CELL_INDEX)));
assertEquals("1.23", formatter.getCellStringValue(row.getCell(FORMATTED_NUMERIC_CELL_INDEX)));
workbook.close();
}
@Test
public void givenFormualCell_whenGetCellStringValue_thenReturnOriginalFormulaString() throws IOException {
Workbook workbook = new XSSFWorkbook(fileLocation);
Sheet sheet = workbook.getSheetAt(0);
Row row = sheet.getRow(0);
ExcelCellFormatter formatter = new ExcelCellFormatter();
assertEquals("SUM(1+2)", formatter.getCellStringValue(row.getCell(FORMULA_CELL_INDEX)));
workbook.close();
}
@Test
public void givenFormualCell_whenGetCellStringValueForFormula_thenReturnOriginalFormulatring() throws IOException {
Workbook workbook = new XSSFWorkbook(fileLocation);
Sheet sheet = workbook.getSheetAt(0);
Row row = sheet.getRow(0);
ExcelCellFormatter formatter = new ExcelCellFormatter();
assertEquals("3", formatter.getCellStringValueWithFormula(row.getCell(FORMULA_CELL_INDEX), workbook));
workbook.close();
}
}

39
apache-poi/src/test/java/com/baeldung/poi/excel/read/cellvalueandnotformula/CellValueAndNotFormulaUnitTest.java Normal file
View File

@ -0,0 +1,39 @@
package com.baeldung.poi.excel.read.cellvalueandnotformula;
import static org.junit.jupiter.api.Assertions.assertEquals;
import java.io.IOException;
import java.net.URISyntaxException;
import java.nio.file.Paths;
import org.junit.Before;
import org.junit.Test;
public class CellValueAndNotFormulaUnitTest {
private CellValueAndNotFormulaHelper readCellValueAndNotFormulaHelper;
private String fileLocation;
private static final String FILE_NAME = "test.xlsx";
@Before
public void setup() throws URISyntaxException {
fileLocation = Paths.get(ClassLoader.getSystemResource(FILE_NAME).toURI()).toString();
readCellValueAndNotFormulaHelper = new CellValueAndNotFormulaHelper();
}
@Test
public void givenExcelCell_whenReadCellValueByLastCachedValue_thenProduceCorrectResult() throws IOException {
final double expectedResult = 7.0;
final Object cellValue = readCellValueAndNotFormulaHelper.getCellValueByFetchingLastCachedValue(fileLocation, "C2");
assertEquals(expectedResult, cellValue);
}
@Test
public void givenExcelCell_whenReadCellValueByEvaluatingFormula_thenProduceCorrectResult() throws IOException {
final double expectedResult = 7.0;
final Object cellValue = readCellValueAndNotFormulaHelper.getCellValueByEvaluatingFormula(fileLocation, "C2");
assertEquals(expectedResult, cellValue);
}
}

4
core-groovy-2/src/test/groovy/com/baeldung/webservice/WebserviceUnitTest.groovy
View File

@ -75,6 +75,7 @@ class WebserviceUnitTest extends GroovyTestCase {
assert stories.size() == 5
}
/* see BAEL-3753
void test_whenConsumingSoap_thenReceiveResponse() {
def url = "http://www.dataaccess.com/webservicesserver/numberconversion.wso"
def soapClient = new SOAPClient(url)
@ -89,6 +90,7 @@ class WebserviceUnitTest extends GroovyTestCase {
def words = response.NumberToWordsResponse
assert words == "one thousand two hundred and thirty four "
}
*/
void test_whenConsumingRestGet_thenReceiveResponse() {
def path = "/get"
@ -149,4 +151,4 @@ class WebserviceUnitTest extends GroovyTestCase {
assert e?.response?.statusCode != 200
}
}
}
}

63
core-java-modules/core-java-concurrency-advanced-3/pom.xml
View File

@ -23,6 +23,37 @@
<version>${assertj.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.jcabi</groupId>
<artifactId>jcabi-aspects</artifactId>
<version>${jcabi-aspects.version}</version>
</dependency>
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjrt</artifactId>
<version>${aspectjrt.version}</version>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>com.google.guava</groupId>
<artifactId>guava</artifactId>
<version>${guava.version}</version>
</dependency>
<dependency>
<groupId>org.cactoos</groupId>
<artifactId>cactoos</artifactId>
<version>${cactoos.version}</version>
</dependency>
<dependency>
<groupId>com.ea.async</groupId>
<artifactId>ea-async</artifactId>
<version>${ea-async.version}</version>
</dependency>
</dependencies>
<build>
@ -36,6 +67,30 @@
<target>${maven.compiler.target}</target>
</configuration>
</plugin>
<plugin>
<groupId>com.jcabi</groupId>
<artifactId>jcabi-maven-plugin</artifactId>
<version>${jcabi-maven-plugin.version}</version>
<executions>
<execution>
<goals>
<goal>ajc</goal>
</goals>
</execution>
</executions>
<dependencies>
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjtools</artifactId>
<version>${aspectjtools.version}</version>
</dependency>
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>${aspectjweaver.version}</version>
</dependency>
</dependencies>
</plugin>
</plugins>
<resources>
<resource>
@ -49,6 +104,14 @@
<assertj.version>3.14.0</assertj.version>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
<jcabi-aspects.version>0.22.6</jcabi-aspects.version>
<aspectjrt.version>1.9.5</aspectjrt.version>
<guava.version>28.2-jre</guava.version>
<cactoos.version>0.43</cactoos.version>
<ea-async.version>1.2.3</ea-async.version>
<jcabi-maven-plugin.version>0.14.1</jcabi-maven-plugin.version>
<aspectjtools.version>1.9.1</aspectjtools.version>
<aspectjweaver.version>1.9.1</aspectjweaver.version>
</properties>
</project>

57
core-java-modules/core-java-concurrency-advanced-3/src/main/java/com/baeldung/async/EAAsyncExample.java Normal file
View File

@ -0,0 +1,57 @@
package com.baeldung.async;
import static com.ea.async.Async.await;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.ExecutionException;
import com.ea.async.Async;
public class EAAsyncExample {
static {
Async.init();
}
public static void main(String[] args) throws Exception {
usingCompletableFuture();
usingAsyncAwait();
}
public static void usingCompletableFuture() throws InterruptedException, ExecutionException, Exception {
CompletableFuture<Void> completableFuture = hello()
.thenComposeAsync(hello -> mergeWorld(hello))
.thenAcceptAsync(helloWorld -> print(helloWorld))
.exceptionally( throwable -> {
System.out.println(throwable.getCause());
return null;
});
completableFuture.get();
}
public static CompletableFuture<String> hello() {
CompletableFuture<String> completableFuture = CompletableFuture.supplyAsync(() -> "Hello");
return completableFuture;
}
public static CompletableFuture<String> mergeWorld(String s) {
CompletableFuture<String> completableFuture = CompletableFuture.supplyAsync(() -> {
return s + " World!";
});
return completableFuture;
}
public static void print(String str) {
CompletableFuture.runAsync(() -> System.out.println(str));
}
private static void usingAsyncAwait() {
try {
String hello = await(hello());
String helloWorld = await(mergeWorld(hello));
await(CompletableFuture.runAsync(() -> print(helloWorld)));
} catch (Exception e) {
e.printStackTrace();
}
}
}

183
core-java-modules/core-java-concurrency-advanced-3/src/main/java/com/baeldung/async/JavaAsync.java Normal file
View File

@ -0,0 +1,183 @@
package com.baeldung.async;
import static com.ea.async.Async.await;
import java.util.concurrent.Callable;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;
import com.google.common.util.concurrent.AsyncCallable;
import com.google.common.util.concurrent.Callables;
import com.google.common.util.concurrent.Futures;
import com.google.common.util.concurrent.ListenableFuture;
import com.google.common.util.concurrent.ListeningExecutorService;
import com.google.common.util.concurrent.MoreExecutors;
import com.jcabi.aspects.Async;
import com.jcabi.aspects.Loggable;
public class JavaAsync {
static {
com.ea.async.Async.init();
}
private static final ExecutorService threadpool = Executors.newCachedThreadPool();
public static void main (String[] args) throws InterruptedException, ExecutionException {
int number = 20;
//Thread Example
factorialUsingThread(number).start();
//FutureTask Example
Future<Long> futureTask = factorialUsingFutureTask(number);
System.out.println("Factorial of " + number + " is: " + futureTask.get());
// CompletableFuture Example
Future<Long> completableFuture = factorialUsingCompletableFuture(number);
System.out.println("Factorial of " + number + " is: " + completableFuture.get());
// EA Async example
System.out.println("Factorial of " + number + " is: " + factorialUsingEAAsync(number));
// cactoos async example
Future<Long> asyncFuture = factorialUsingCactoos(number);
System.out.println("Factorial of " + number + " is: " + asyncFuture.get());
// Guava example
ListenableFuture<Long> guavaFuture = factorialUsingGuavaServiceSubmit(number);
System.out.println("Factorial of " + number + " is: " + guavaFuture.get());
ListenableFuture<Long> guavaFutures = factorialUsingGuavaFutures(number);
System.out.println("Factorial of " + number + " is: " + guavaFutures.get());
// @async jcabi-aspect example
Future<Long> aspectFuture = factorialUsingJcabiAspect(number);
System.out.println("Factorial of " + number + " is: " + aspectFuture.get());
}
/**
* Finds factorial of a number
* @param number
* @return
*/
public static long factorial(int number) {
long result = 1;
for(int i=number;i>0;i--) {
result *= i;
}
return result;
}
/**
* Finds factorial of a number using Thread
* @param number
* @return
*/
@Loggable
public static Thread factorialUsingThread(int number) {
Thread newThread = new Thread(() -> {
System.out.println("Factorial of " + number + " is: " + factorial(number));
});
return newThread;
}
/**
* Finds factorial of a number using FutureTask
* @param number
* @return
*/
@Loggable
public static Future<Long> factorialUsingFutureTask(int number) {
Future<Long> futureTask = threadpool.submit(() -> factorial(number));
while (!futureTask.isDone()) {
System.out.println("FutureTask is not finished yet...");
}
return futureTask;
}
/**
* Finds factorial of a number using CompletableFuture
* @param number
* @return
*/
@Loggable
public static Future<Long> factorialUsingCompletableFuture(int number) {
CompletableFuture<Long> completableFuture = CompletableFuture.supplyAsync(() -> factorial(number));
return completableFuture;
}
/**
* Finds factorial of a number using EA Async
* @param number
* @return
*/
@Loggable
public static long factorialUsingEAAsync(int number) {
CompletableFuture<Long> completableFuture = CompletableFuture.supplyAsync(() -> factorial(number));
long result = await(completableFuture);
return result;
}
/**
* Finds factorial of a number using Async of Cactoos
* @param number
* @return
* @throws InterruptedException
* @throws ExecutionException
*/
@Loggable
public static Future<Long> factorialUsingCactoos(int number) throws InterruptedException, ExecutionException {
org.cactoos.func.Async<Integer, Long> asyncFunction = new org.cactoos.func.Async<Integer, Long>(input -> factorial(input));
Future<Long> asyncFuture = asyncFunction.apply(number);
return asyncFuture;
}
/**
* Finds factorial of a number using Guava's ListeningExecutorService.submit()
* @param number
* @return
*/
@Loggable
public static ListenableFuture<Long> factorialUsingGuavaServiceSubmit(int number) {
ListeningExecutorService service = MoreExecutors.listeningDecorator(threadpool);
ListenableFuture<Long> factorialFuture = (ListenableFuture<Long>) service.submit(()-> factorial(number));
return factorialFuture;
}
/**
* Finds factorial of a number using Guava's Futures.submitAsync()
* @param number
* @return
*/
@Loggable
public static ListenableFuture<Long> factorialUsingGuavaFutures(int number) {
ListeningExecutorService service = MoreExecutors.listeningDecorator(threadpool);
AsyncCallable<Long> asyncCallable = Callables.asAsyncCallable(new Callable<Long>() {
public Long call() {
return factorial(number);
}
}, service);
return Futures.submitAsync(asyncCallable, service);
}
/**
* Finds factorial of a number using @Async of jcabi-aspects
* @param number
* @return
*/
@Async
@Loggable
public static Future<Long> factorialUsingJcabiAspect(int number) {
Future<Long> factorialFuture = CompletableFuture.supplyAsync(() -> factorial(number));
return factorialFuture;
}
}

6
core-java-modules/core-java-datetime-computations/README.md → core-java-modules/core-java-date-operations-1/README.md
View File

@ -1,6 +1,5 @@
## Java Date/time computations Cookbooks and Examples
This module contains articles about date and time computations in Java.
## Core Date Operations (Part 1)
This module contains articles about date operations in Java.
### Relevant Articles:
- [Difference Between Two Dates in Java](http://www.baeldung.com/java-date-difference)
@ -13,3 +12,4 @@ This module contains articles about date and time computations in Java.
- [Increment Date in Java](http://www.baeldung.com/java-increment-date)
- [Add Hours To a Date In Java](http://www.baeldung.com/java-add-hours-date)
- [Introduction to Joda-Time](http://www.baeldung.com/joda-time)
- [[Next -->]](/core-java-modules/core-java-date-operations-2)

6
core-java-modules/core-java-datetime-computations/pom.xml → core-java-modules/core-java-date-operations-1/pom.xml
View File

@ -2,9 +2,9 @@
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<artifactId>core-java-datetime-computations</artifactId>
<artifactId>core-java-date-operations-1</artifactId>
<version>${project.parent.version}</version>
<name>core-java-datetime-computations</name>
<name>core-java-date-operations-1</name>
<packaging>jar</packaging>
<parent>
@ -41,7 +41,7 @@
</dependencies>
<build>
<finalName>core-java-datetime-computations</finalName>
<finalName>core-java-date-operations-1</finalName>
<resources>
<resource>
<directory>src/main/resources</directory>

0
core-java-modules/core-java-datetime-computations/src/main/java/com/baeldung/date/AgeCalculator.java → core-java-modules/core-java-date-operations-1/src/main/java/com/baeldung/date/AgeCalculator.java
View File

0
core-java-modules/core-java-datetime-computations/src/main/java/com/baeldung/date/DateWithoutTime.java → core-java-modules/core-java-date-operations-1/src/main/java/com/baeldung/date/DateWithoutTime.java
View File

0
core-java-modules/core-java-datetime-computations/src/main/java/com/baeldung/datetime/AddHoursToDate.java → core-java-modules/core-java-date-operations-1/src/main/java/com/baeldung/datetime/AddHoursToDate.java
View File

0
core-java-modules/core-java-datetime-computations/src/main/java/com/baeldung/datetime/DateExtractYearMonthDayIntegerValues.java → core-java-modules/core-java-date-operations-1/src/main/java/com/baeldung/datetime/DateExtractYearMonthDayIntegerValues.java
View File

0
core-java-modules/core-java-datetime-computations/src/main/java/com/baeldung/datetime/LocalDateExtractYearMonthDayIntegerValues.java → core-java-modules/core-java-date-operations-1/src/main/java/com/baeldung/datetime/LocalDateExtractYearMonthDayIntegerValues.java
View File

0
core-java-modules/core-java-datetime-computations/src/main/java/com/baeldung/datetime/LocalDateTimeExtractYearMonthDayIntegerValues.java → core-java-modules/core-java-date-operations-1/src/main/java/com/baeldung/datetime/LocalDateTimeExtractYearMonthDayIntegerValues.java
View File

0
core-java-modules/core-java-datetime-computations/src/main/java/com/baeldung/datetime/OffsetDateTimeExtractYearMonthDayIntegerValues.java → core-java-modules/core-java-date-operations-1/src/main/java/com/baeldung/datetime/OffsetDateTimeExtractYearMonthDayIntegerValues.java
View File

0
core-java-modules/core-java-datetime-computations/src/main/java/com/baeldung/datetime/ZonedDateTimeExtractYearMonthDayIntegerValues.java → core-java-modules/core-java-date-operations-1/src/main/java/com/baeldung/datetime/ZonedDateTimeExtractYearMonthDayIntegerValues.java
View File

0
core-java-modules/core-java-datetime-computations/src/main/java/com/baeldung/datetime/modify/DateIncrementer.java → core-java-modules/core-java-date-operations-1/src/main/java/com/baeldung/datetime/modify/DateIncrementer.java
View File

0
core-java-modules/core-java-datetime-computations/src/main/java/com/baeldung/gregorian/calendar/GregorianCalendarExample.java → core-java-modules/core-java-date-operations-1/src/main/java/com/baeldung/gregorian/calendar/GregorianCalendarExample.java
View File

0
core-java-modules/core-java-datetime-computations/src/main/java/com/baeldung/java9/time/TimeApi.java → core-java-modules/core-java-date-operations-1/src/main/java/com/baeldung/java9/time/TimeApi.java
View File

0
core-java-modules/core-java-datetime-computations/src/test/java/com/baeldung/date/AgeCalculatorUnitTest.java → core-java-modules/core-java-date-operations-1/src/test/java/com/baeldung/date/AgeCalculatorUnitTest.java
View File

0
core-java-modules/core-java-datetime-computations/src/test/java/com/baeldung/date/DateDiffUnitTest.java → core-java-modules/core-java-date-operations-1/src/test/java/com/baeldung/date/DateDiffUnitTest.java
View File

0
core-java-modules/core-java-datetime-computations/src/test/java/com/baeldung/date/DateWithoutTimeUnitTest.java → core-java-modules/core-java-date-operations-1/src/test/java/com/baeldung/date/DateWithoutTimeUnitTest.java
View File

0
core-java-modules/core-java-datetime-computations/src/test/java/com/baeldung/datetime/AddHoursToDateUnitTest.java → core-java-modules/core-java-date-operations-1/src/test/java/com/baeldung/datetime/AddHoursToDateUnitTest.java
View File

0
core-java-modules/core-java-datetime-computations/src/test/java/com/baeldung/datetime/DateExtractYearMonthDayIntegerValuesUnitTest.java → core-java-modules/core-java-date-operations-1/src/test/java/com/baeldung/datetime/DateExtractYearMonthDayIntegerValuesUnitTest.java
View File

0
core-java-modules/core-java-datetime-computations/src/test/java/com/baeldung/datetime/LocalDateExtractYearMonthDayIntegerValuesUnitTest.java → core-java-modules/core-java-date-operations-1/src/test/java/com/baeldung/datetime/LocalDateExtractYearMonthDayIntegerValuesUnitTest.java
View File

0
core-java-modules/core-java-datetime-computations/src/test/java/com/baeldung/datetime/LocalDateTimeExtractYearMonthDayIntegerValuesUnitTest.java → core-java-modules/core-java-date-operations-1/src/test/java/com/baeldung/datetime/LocalDateTimeExtractYearMonthDayIntegerValuesUnitTest.java
View File

0
core-java-modules/core-java-datetime-computations/src/test/java/com/baeldung/datetime/OffsetDateTimeExtractYearMonthDayIntegerValuesUnitTest.java → core-java-modules/core-java-date-operations-1/src/test/java/com/baeldung/datetime/OffsetDateTimeExtractYearMonthDayIntegerValuesUnitTest.java
View File

0
core-java-modules/core-java-datetime-computations/src/test/java/com/baeldung/datetime/ZonedDateTimeExtractYearMonthDayIntegerValuesUnitTest.java → core-java-modules/core-java-date-operations-1/src/test/java/com/baeldung/datetime/ZonedDateTimeExtractYearMonthDayIntegerValuesUnitTest.java
View File

0
core-java-modules/core-java-datetime-computations/src/test/java/com/baeldung/datetime/modify/DateIncrementerUnitTest.java → core-java-modules/core-java-date-operations-1/src/test/java/com/baeldung/datetime/modify/DateIncrementerUnitTest.java
View File

0
core-java-modules/core-java-datetime-computations/src/test/java/com/baeldung/dst/DaylightSavingTimeExamplesUnitTest.java → core-java-modules/core-java-date-operations-1/src/test/java/com/baeldung/dst/DaylightSavingTimeExamplesUnitTest.java
View File

0
core-java-modules/core-java-datetime-computations/src/test/java/com/baeldung/dst/DaylightSavingTimeJavaTimeExamplesUnitTest.java → core-java-modules/core-java-date-operations-1/src/test/java/com/baeldung/dst/DaylightSavingTimeJavaTimeExamplesUnitTest.java
View File

0
core-java-modules/core-java-datetime-computations/src/test/java/com/baeldung/gregorian/calendar/GregorianCalendarTester.java → core-java-modules/core-java-date-operations-1/src/test/java/com/baeldung/gregorian/calendar/GregorianCalendarTester.java
View File

0
core-java-modules/core-java-datetime-computations/src/test/java/com/baeldung/java9/time/TimeApiUnitTest.java → core-java-modules/core-java-date-operations-1/src/test/java/com/baeldung/java9/time/TimeApiUnitTest.java
View File

0
core-java-modules/core-java-datetime-computations/src/test/java/com/baeldung/jodatime/JodaTimeUnitTest.java → core-java-modules/core-java-date-operations-1/src/test/java/com/baeldung/jodatime/JodaTimeUnitTest.java
View File

3
core-java-modules/core-java-date-operations/README.md → core-java-modules/core-java-date-operations-2/README.md
View File

@ -1,4 +1,4 @@
## Core Date Operations
## Core Date Operations (Part 2)
This module contains articles about date operations in Java.
### Relevant Articles:
@ -6,3 +6,4 @@ This module contains articles about date operations in Java.
- [Skipping Weekends While Adding Days to LocalDate in Java 8](https://www.baeldung.com/java-localdate-add-days-skip-weekends)
- [Checking If Two Java Dates Are on the Same Day](https://www.baeldung.com/java-check-two-dates-on-same-day)
- [Converting Java Date to OffsetDateTime](https://www.baeldung.com/java-convert-date-to-offsetdatetime)
- [[<-- Prev]](/core-java-modules/core-java-date-operations-1)

11
core-java-modules/core-java-date-operations/pom.xml → core-java-modules/core-java-date-operations-2/pom.xml
View File

@ -3,9 +3,9 @@
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<artifactId>core-java-date-operations</artifactId>
<artifactId>core-java-date-operations-2</artifactId>
<version>${project.parent.version}</version>
<name>core-java-date-operations</name>
<name>core-java-date-operations-2</name>
<packaging>jar</packaging>
<parent>
@ -31,11 +31,18 @@
<artifactId>hirondelle-date4j</artifactId>
<version>${hirondelle-date4j.version}</version>
</dependency>
<dependency>
<groupId>org.assertj</groupId>
<artifactId>assertj-core</artifactId>
<version>${assertj.version}</version>
<scope>test</scope>
</dependency>
</dependencies>
<properties>
<joda-time.version>2.10</joda-time.version>
<hirondelle-date4j.version>1.5.1</hirondelle-date4j.version>
<assertj.version>3.14.0</assertj.version>
</properties>
</project>

130
core-java-modules/core-java-date-operations/src/main/java/com/baeldung/date/comparison/DateComparisonUtils.java → core-java-modules/core-java-date-operations-2/src/main/java/com/baeldung/date/comparison/DateComparisonUtils.java
View File

@ -1,65 +1,65 @@
package com.baeldung.date.comparison;
import java.text.SimpleDateFormat;
import java.time.Instant;
import java.time.LocalDate;
import java.time.ZoneId;
import java.time.temporal.ChronoUnit;
import java.util.Calendar;
import java.util.Date;
import java.util.TimeZone;
import org.apache.commons.lang3.time.DateUtils;
import hirondelle.date4j.DateTime;
public class DateComparisonUtils {
public static boolean isSameDayUsingLocalDate(Date date1, Date date2) {
LocalDate localDate1 = date1.toInstant()
.atZone(ZoneId.systemDefault())
.toLocalDate();
LocalDate localDate2 = date2.toInstant()
.atZone(ZoneId.systemDefault())
.toLocalDate();
return localDate1.isEqual(localDate2);
}
public static boolean isSameDayUsingInstant(Date date1, Date date2) {
Instant instant1 = date1.toInstant()
.truncatedTo(ChronoUnit.DAYS);
Instant instant2 = date2.toInstant()
.truncatedTo(ChronoUnit.DAYS);
return instant1.equals(instant2);
}
public static boolean isSameDayUsingSimpleDateFormat(Date date1, Date date2) {
SimpleDateFormat fmt = new SimpleDateFormat("yyyyMMdd");
return fmt.format(date1)
.equals(fmt.format(date2));
}
public static boolean isSameDayUsingCalendar(Date date1, Date date2) {
Calendar calendar1 = Calendar.getInstance();
calendar1.setTime(date1);
Calendar calendar2 = Calendar.getInstance();
calendar2.setTime(date2);
return calendar1.get(Calendar.YEAR) == calendar2.get(Calendar.YEAR) && calendar1.get(Calendar.MONTH) == calendar2.get(Calendar.MONTH) && calendar1.get(Calendar.DAY_OF_MONTH) == calendar2.get(Calendar.DAY_OF_MONTH);
}
public static boolean isSameDayUsingApacheCommons(Date date1, Date date2) {
return DateUtils.isSameDay(date1, date2);
}
public static boolean isSameDayUsingJoda(Date date1, Date date2) {
org.joda.time.LocalDate localDate1 = new org.joda.time.LocalDate(date1);
org.joda.time.LocalDate localDate2 = new org.joda.time.LocalDate(date2);
return localDate1.equals(localDate2);
}
public static boolean isSameDayUsingDate4j(Date date1, Date date2) {
DateTime dateObject1 = DateTime.forInstant(date1.getTime(), TimeZone.getDefault());
DateTime dateObject2 = DateTime.forInstant(date2.getTime(), TimeZone.getDefault());
return dateObject1.isSameDayAs(dateObject2);
}
}
package com.baeldung.date.comparison;
import java.text.SimpleDateFormat;
import java.time.Instant;
import java.time.LocalDate;
import java.time.ZoneId;
import java.time.temporal.ChronoUnit;
import java.util.Calendar;
import java.util.Date;
import java.util.TimeZone;
import org.apache.commons.lang3.time.DateUtils;
import hirondelle.date4j.DateTime;
public class DateComparisonUtils {
public static boolean isSameDayUsingLocalDate(Date date1, Date date2) {
LocalDate localDate1 = date1.toInstant()
.atZone(ZoneId.systemDefault())
.toLocalDate();
LocalDate localDate2 = date2.toInstant()
.atZone(ZoneId.systemDefault())
.toLocalDate();
return localDate1.isEqual(localDate2);
}
public static boolean isSameDayUsingInstant(Date date1, Date date2) {
Instant instant1 = date1.toInstant()
.truncatedTo(ChronoUnit.DAYS);
Instant instant2 = date2.toInstant()
.truncatedTo(ChronoUnit.DAYS);
return instant1.equals(instant2);
}
public static boolean isSameDayUsingSimpleDateFormat(Date date1, Date date2) {
SimpleDateFormat fmt = new SimpleDateFormat("yyyyMMdd");
return fmt.format(date1)
.equals(fmt.format(date2));
}
public static boolean isSameDayUsingCalendar(Date date1, Date date2) {
Calendar calendar1 = Calendar.getInstance();
calendar1.setTime(date1);
Calendar calendar2 = Calendar.getInstance();
calendar2.setTime(date2);
return calendar1.get(Calendar.YEAR) == calendar2.get(Calendar.YEAR) && calendar1.get(Calendar.MONTH) == calendar2.get(Calendar.MONTH) && calendar1.get(Calendar.DAY_OF_MONTH) == calendar2.get(Calendar.DAY_OF_MONTH);
}
public static boolean isSameDayUsingApacheCommons(Date date1, Date date2) {
return DateUtils.isSameDay(date1, date2);
}
public static boolean isSameDayUsingJoda(Date date1, Date date2) {
org.joda.time.LocalDate localDate1 = new org.joda.time.LocalDate(date1);
org.joda.time.LocalDate localDate2 = new org.joda.time.LocalDate(date2);
return localDate1.equals(localDate2);
}
public static boolean isSameDayUsingDate4j(Date date1, Date date2) {
DateTime dateObject1 = DateTime.forInstant(date1.getTime(), TimeZone.getDefault());
DateTime dateObject2 = DateTime.forInstant(date2.getTime(), TimeZone.getDefault());
return dateObject1.isSameDayAs(dateObject2);
}
}

0
core-java-modules/core-java-date-operations/src/main/java/com/baeldung/datetime/CalendarUtils.java → core-java-modules/core-java-date-operations-2/src/main/java/com/baeldung/datetime/CalendarUtils.java
View File

0
core-java-modules/core-java-date-operations/src/main/java/com/baeldung/datetime/DateUtils.java → core-java-modules/core-java-date-operations-2/src/main/java/com/baeldung/datetime/DateUtils.java
View File

0
core-java-modules/core-java-date-operations/src/main/java/com/baeldung/datetime/sql/DateUtils.java → core-java-modules/core-java-date-operations-2/src/main/java/com/baeldung/datetime/sql/DateUtils.java
View File

0
core-java-modules/core-java-date-operations/src/main/java/com/baeldung/datetime/sql/TimeUtils.java → core-java-modules/core-java-date-operations-2/src/main/java/com/baeldung/datetime/sql/TimeUtils.java
View File

0
core-java-modules/core-java-date-operations/src/main/java/com/baeldung/datetime/sql/TimestampUtils.java → core-java-modules/core-java-date-operations-2/src/main/java/com/baeldung/datetime/sql/TimestampUtils.java
View File

0
core-java-modules/core-java-date-operations/src/main/java/com/baeldung/offsetdatetime/ConvertToOffsetDateTime.java → core-java-modules/core-java-date-operations-2/src/main/java/com/baeldung/offsetdatetime/ConvertToOffsetDateTime.java
View File

0
core-java-modules/core-java-date-operations/src/main/java/com/baeldung/skipweekends/AddSubtractDaysSkippingWeekendsUtils.java → core-java-modules/core-java-date-operations-2/src/main/java/com/baeldung/skipweekends/AddSubtractDaysSkippingWeekendsUtils.java
View File

19
core-java-modules/core-java-date-operations-2/src/main/java/com/baeldung/timer/DatabaseMigrationTask.java Normal file
View File

@ -0,0 +1,19 @@
package com.baeldung.timer;
import java.util.List;
import java.util.TimerTask;
public class DatabaseMigrationTask extends TimerTask {
private List<String> oldDatabase;
private List<String> newDatabase;
public DatabaseMigrationTask(List<String> oldDatabase, List<String> newDatabase) {
this.oldDatabase = oldDatabase;
this.newDatabase = newDatabase;
}
@Override
public void run() {
newDatabase.addAll(oldDatabase);
}
}

14
core-java-modules/core-java-date-operations-2/src/main/java/com/baeldung/timer/NewsletterTask.java Normal file
View File

@ -0,0 +1,14 @@
package com.baeldung.timer;
import java.time.Instant;
import java.time.LocalDateTime;
import java.time.ZoneId;
import java.util.TimerTask;
public class NewsletterTask extends TimerTask {
@Override
public void run() {
System.out.println("Email sent at: "
+ LocalDateTime.ofInstant(Instant.ofEpochMilli(scheduledExecutionTime()), ZoneId.systemDefault()));
}
}

114
core-java-modules/core-java-date-operations/src/test/java/com/baeldung/date/comparison/DateComparisonUtilsUnitTest.java → core-java-modules/core-java-date-operations-2/src/test/java/com/baeldung/date/comparison/DateComparisonUtilsUnitTest.java
View File

@ -1,57 +1,57 @@
package com.baeldung.date.comparison;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import java.time.LocalDateTime;
import java.time.ZoneId;
import java.util.Date;
import org.junit.Test;
public class DateComparisonUtilsUnitTest {
private Date day1Morning = toDate(LocalDateTime.of(2019, 10, 19, 6, 30, 40));
private Date day1Evening = toDate(LocalDateTime.of(2019, 10, 19, 18, 30, 50));
private Date day2Morning = toDate(LocalDateTime.of(2019, 10, 20, 6, 30, 50));
private Date toDate(LocalDateTime localDateTime) {
return Date.from(localDateTime.atZone(ZoneId.systemDefault())
.toInstant());
}
@Test
public void givenDatesWithDifferentTime_whenIsSameDay_thenReturnsTrue() {
assertTrue(DateComparisonUtils.isSameDayUsingLocalDate(day1Morning, day1Evening));
assertTrue(DateComparisonUtils.isSameDayUsingInstant(day1Morning, day1Evening));
assertTrue(DateComparisonUtils.isSameDayUsingSimpleDateFormat(day1Morning, day1Evening));
assertTrue(DateComparisonUtils.isSameDayUsingCalendar(day1Morning, day1Evening));
assertTrue(DateComparisonUtils.isSameDayUsingApacheCommons(day1Morning, day1Evening));
assertTrue(DateComparisonUtils.isSameDayUsingJoda(day1Morning, day1Evening));
assertTrue(DateComparisonUtils.isSameDayUsingDate4j(day1Morning, day1Evening));
}
@Test
public void givenDates_whenIsDifferentDay_thenReturnsFalse() {
assertFalse(DateComparisonUtils.isSameDayUsingLocalDate(day1Morning, day2Morning));
assertFalse(DateComparisonUtils.isSameDayUsingLocalDate(day1Evening, day2Morning));
assertFalse(DateComparisonUtils.isSameDayUsingInstant(day1Morning, day2Morning));
assertFalse(DateComparisonUtils.isSameDayUsingInstant(day1Evening, day2Morning));
assertFalse(DateComparisonUtils.isSameDayUsingSimpleDateFormat(day1Morning, day2Morning));
assertFalse(DateComparisonUtils.isSameDayUsingSimpleDateFormat(day1Evening, day2Morning));
assertFalse(DateComparisonUtils.isSameDayUsingCalendar(day1Morning, day2Morning));
assertFalse(DateComparisonUtils.isSameDayUsingCalendar(day1Evening, day2Morning));
assertFalse(DateComparisonUtils.isSameDayUsingApacheCommons(day1Morning, day2Morning));
assertFalse(DateComparisonUtils.isSameDayUsingApacheCommons(day1Evening, day2Morning));
assertFalse(DateComparisonUtils.isSameDayUsingJoda(day1Morning, day2Morning));
assertFalse(DateComparisonUtils.isSameDayUsingJoda(day1Evening, day2Morning));
assertFalse(DateComparisonUtils.isSameDayUsingDate4j(day1Morning, day2Morning));
assertFalse(DateComparisonUtils.isSameDayUsingDate4j(day1Evening, day2Morning));
}
}
package com.baeldung.date.comparison;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import java.time.LocalDateTime;
import java.time.ZoneId;
import java.util.Date;
import org.junit.Test;
public class DateComparisonUtilsUnitTest {
private Date day1Morning = toDate(LocalDateTime.of(2019, 10, 19, 6, 30, 40));
private Date day1Evening = toDate(LocalDateTime.of(2019, 10, 19, 18, 30, 50));
private Date day2Morning = toDate(LocalDateTime.of(2019, 10, 20, 6, 30, 50));
private Date toDate(LocalDateTime localDateTime) {
return Date.from(localDateTime.atZone(ZoneId.systemDefault())
.toInstant());
}
@Test
public void givenDatesWithDifferentTime_whenIsSameDay_thenReturnsTrue() {
assertTrue(DateComparisonUtils.isSameDayUsingLocalDate(day1Morning, day1Evening));
assertTrue(DateComparisonUtils.isSameDayUsingInstant(day1Morning, day1Evening));
assertTrue(DateComparisonUtils.isSameDayUsingSimpleDateFormat(day1Morning, day1Evening));
assertTrue(DateComparisonUtils.isSameDayUsingCalendar(day1Morning, day1Evening));
assertTrue(DateComparisonUtils.isSameDayUsingApacheCommons(day1Morning, day1Evening));
assertTrue(DateComparisonUtils.isSameDayUsingJoda(day1Morning, day1Evening));
assertTrue(DateComparisonUtils.isSameDayUsingDate4j(day1Morning, day1Evening));
}
@Test
public void givenDates_whenIsDifferentDay_thenReturnsFalse() {
assertFalse(DateComparisonUtils.isSameDayUsingLocalDate(day1Morning, day2Morning));
assertFalse(DateComparisonUtils.isSameDayUsingLocalDate(day1Evening, day2Morning));
assertFalse(DateComparisonUtils.isSameDayUsingInstant(day1Morning, day2Morning));
assertFalse(DateComparisonUtils.isSameDayUsingInstant(day1Evening, day2Morning));
assertFalse(DateComparisonUtils.isSameDayUsingSimpleDateFormat(day1Morning, day2Morning));
assertFalse(DateComparisonUtils.isSameDayUsingSimpleDateFormat(day1Evening, day2Morning));
assertFalse(DateComparisonUtils.isSameDayUsingCalendar(day1Morning, day2Morning));
assertFalse(DateComparisonUtils.isSameDayUsingCalendar(day1Evening, day2Morning));
assertFalse(DateComparisonUtils.isSameDayUsingApacheCommons(day1Morning, day2Morning));
assertFalse(DateComparisonUtils.isSameDayUsingApacheCommons(day1Evening, day2Morning));
assertFalse(DateComparisonUtils.isSameDayUsingJoda(day1Morning, day2Morning));
assertFalse(DateComparisonUtils.isSameDayUsingJoda(day1Evening, day2Morning));
assertFalse(DateComparisonUtils.isSameDayUsingDate4j(day1Morning, day2Morning));
assertFalse(DateComparisonUtils.isSameDayUsingDate4j(day1Evening, day2Morning));
}
}

0
core-java-modules/core-java-date-operations/src/test/java/com/baeldung/datetime/CalendarUtilsUnitTest.java → core-java-modules/core-java-date-operations-2/src/test/java/com/baeldung/datetime/CalendarUtilsUnitTest.java
View File

0
core-java-modules/core-java-date-operations/src/test/java/com/baeldung/datetime/DateUtilsUnitTest.java → core-java-modules/core-java-date-operations-2/src/test/java/com/baeldung/datetime/DateUtilsUnitTest.java
View File

0
core-java-modules/core-java-date-operations/src/test/java/com/baeldung/datetime/sql/DateUtilsUnitTest.java → core-java-modules/core-java-date-operations-2/src/test/java/com/baeldung/datetime/sql/DateUtilsUnitTest.java
View File

0
core-java-modules/core-java-date-operations/src/test/java/com/baeldung/datetime/sql/TimeUtilsUnitTest.java → core-java-modules/core-java-date-operations-2/src/test/java/com/baeldung/datetime/sql/TimeUtilsUnitTest.java
View File

0
core-java-modules/core-java-date-operations/src/test/java/com/baeldung/datetime/sql/TimestampUtilsUnitTest.java → core-java-modules/core-java-date-operations-2/src/test/java/com/baeldung/datetime/sql/TimestampUtilsUnitTest.java
View File

0
core-java-modules/core-java-date-operations/src/test/java/com/baeldung/jvmtimezone/ModifyDefaultTimezoneUnitTest.java → core-java-modules/core-java-date-operations-2/src/test/java/com/baeldung/jvmtimezone/ModifyDefaultTimezoneUnitTest.java
View File

0
core-java-modules/core-java-date-operations/src/test/java/com/baeldung/jvmtimezone/ModifyTimezonePropertyUnitTest.java → core-java-modules/core-java-date-operations-2/src/test/java/com/baeldung/jvmtimezone/ModifyTimezonePropertyUnitTest.java
View File

0
core-java-modules/core-java-date-operations/src/test/java/com/baeldung/offsetdatetime/ConvertToOffsetDateTimeUnitTest.java → core-java-modules/core-java-date-operations-2/src/test/java/com/baeldung/offsetdatetime/ConvertToOffsetDateTimeUnitTest.java
View File

0
core-java-modules/core-java-date-operations/src/test/java/com/baeldung/skipweekends/AddSubtractDaysSkippingWeekendsUtilsUnitTest.java → core-java-modules/core-java-date-operations-2/src/test/java/com/baeldung/skipweekends/AddSubtractDaysSkippingWeekendsUtilsUnitTest.java
View File

44
core-java-modules/core-java-date-operations-2/src/test/java/com/baeldung/timer/DatabaseMigrationTaskUnitTest.java Normal file
View File

@ -0,0 +1,44 @@
package com.baeldung.timer;
import org.junit.jupiter.api.Test;
import java.time.LocalDateTime;
import java.time.ZoneId;
import java.util.*;
import static org.assertj.core.api.Assertions.assertThat;
class DatabaseMigrationTaskUnitTest {
@Test
void givenDatabaseMigrationTask_whenTimerScheduledForNowPlusTwoSeconds_thenDataMigratedAfterTwoSeconds() throws Exception {
List<String> oldDatabase = Arrays.asList("Harrison Ford", "Carrie Fisher", "Mark Hamill");
List<String> newDatabase = new ArrayList<>();
LocalDateTime twoSecondsLater = LocalDateTime.now().plusSeconds(2);
Date twoSecondsLaterAsDate = Date.from(twoSecondsLater.atZone(ZoneId.systemDefault()).toInstant());
new Timer().schedule(new DatabaseMigrationTask(oldDatabase, newDatabase), twoSecondsLaterAsDate);
while (LocalDateTime.now().isBefore(twoSecondsLater)) {
assertThat(newDatabase).isEmpty();
Thread.sleep(500);
}
assertThat(newDatabase).containsExactlyElementsOf(oldDatabase);
}
@Test
void givenDatabaseMigrationTask_whenTimerScheduledInTwoSeconds_thenDataMigratedAfterTwoSeconds() throws Exception {
List<String> oldDatabase = Arrays.asList("Harrison Ford", "Carrie Fisher", "Mark Hamill");
List<String> newDatabase = new ArrayList<>();
new Timer().schedule(new DatabaseMigrationTask(oldDatabase, newDatabase), 2000);
LocalDateTime twoSecondsLater = LocalDateTime.now().plusSeconds(2);
while (LocalDateTime.now().isBefore(twoSecondsLater)) {
assertThat(newDatabase).isEmpty();
Thread.sleep(500);
}
assertThat(newDatabase).containsExactlyElementsOf(oldDatabase);
}
}

33
core-java-modules/core-java-date-operations-2/src/test/java/com/baeldung/timer/NewsletterTaskUnitTest.java Normal file
View File

@ -0,0 +1,33 @@
package com.baeldung.timer;
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.Test;
import java.util.Timer;
class NewsletterTaskUnitTest {
private final Timer timer = new Timer();
@AfterEach
void afterEach() {
timer.cancel();
}
@Test
void givenNewsletterTask_whenTimerScheduledEachSecondFixedDelay_thenNewsletterSentEachSecond() throws Exception {
timer.schedule(new NewsletterTask(), 0, 1000);
for (int i = 0; i < 3; i++) {
Thread.sleep(1000);
}
}
@Test
void givenNewsletterTask_whenTimerScheduledEachSecondFixedRate_thenNewsletterSentEachSecond() throws Exception {
timer.scheduleAtFixedRate(new NewsletterTask(), 0, 1000);
for (int i = 0; i < 3; i++) {
Thread.sleep(1000);
}
}
}

45
core-java-modules/core-java-datetime-java8/src/main/java/com/baeldung/datebasics/CreateDate.java Normal file
View File

@ -0,0 +1,45 @@
package com.baeldung.datebasics;
import java.time.Clock;
import java.time.LocalDate;
import java.time.Month;
import java.time.ZoneId;
import java.time.format.DateTimeFormatter;
public class CreateDate {
public LocalDate getTodaysDate() {
return LocalDate.now();
}
public LocalDate getTodaysDateFromClock() {
return LocalDate.now(Clock.systemDefaultZone());
}
public LocalDate getTodaysDateFromZone(String zone) {
return LocalDate.now(ZoneId.of(zone));
}
public LocalDate getCustomDateOne(int year, int month, int dayOfMonth) {
return LocalDate.of(year, month, dayOfMonth);
}
public LocalDate getCustomDateTwo(int year, Month month, int dayOfMonth) {
return LocalDate.of(year, month, dayOfMonth);
}
public LocalDate getDateFromEpochDay(long epochDay) {
return LocalDate.ofEpochDay(epochDay);
}
public LocalDate getDateFromYearAndDayOfYear(int year, int dayOfYear) {
return LocalDate.ofYearDay(year, dayOfYear);
}
public LocalDate getDateFromString(String date) {
return LocalDate.parse(date);
}
public LocalDate getDateFromStringAndFormatter(String date, String pattern) {
return LocalDate.parse(date, DateTimeFormatter.ofPattern(pattern));
}
}

56
core-java-modules/core-java-datetime-java8/src/test/java/com/baeldung/datebasics/CreateDateUnitTest.java Normal file
View File

@ -0,0 +1,56 @@
package com.baeldung.datebasics;
import static org.junit.Assert.assertEquals;
import java.time.Month;
import org.junit.Test;
public class CreateDateUnitTest {
private CreateDate date = new CreateDate();
@Test
public void whenUsingNowMethod_thenLocalDate() {
assertEquals("2020-01-08", date.getTodaysDate());
}
@Test
public void whenUsingClock_thenLocalDate() {
assertEquals("2020-01-08", date.getTodaysDateFromClock());
}
@Test
public void givenValues_whenUsingZone_thenLocalDate() {
assertEquals("2020-01-08", date.getTodaysDateFromZone("Asia/Kolkata"));
}
@Test
public void givenValues_whenUsingOfMethod_thenLocalDate() {
assertEquals("2020-01-08", date.getCustomDateOne(2020, 1, 8));
}
@Test
public void givenValuesWithMonthEnum_whenUsingOfMethod_thenLocalDate() {
assertEquals("2020-01-08", date.getCustomDateTwo(2020, Month.JANUARY, 8));
}
@Test
public void givenValues_whenUsingEpochDay_thenLocalDate() {
assertEquals("2020-01-08", date.getDateFromEpochDay(18269));
}
@Test
public void givenValues_whenUsingYearDay_thenLocalDate() {
assertEquals("2020-01-08", date.getDateFromYearAndDayOfYear(2020, 8));
}
@Test
public void givenValues_whenUsingParse_thenLocalDate() {
assertEquals("2020-01-08", date.getDateFromString("2020-01-08"));
}
@Test
public void givenValuesWithFormatter_whenUsingParse_thenLocalDate() {
assertEquals("2020-01-08", date.getDateFromStringAndFormatter("8-Jan-2020", "d-MMM-yyyy"));
}
}

26
core-java-modules/core-java-lang-math/src/main/java/com/baeldung/powerset/PowerSetUtility.java
View File

@ -1,7 +1,5 @@
package com.baeldung.powerset;
import com.google.common.collect.Sets;
import javax.annotation.Nullable;
import java.util.AbstractSet;
import java.util.ArrayList;
@ -163,7 +161,7 @@ public class PowerSetUtility<T> {
return unMapIndex(powerSetIndices);
}
private List<List<Boolean>> iterativePowerSetByLoopOverNumbersWithReverseLexicographicalOrder(int n) {
private List<List<Boolean>> iterativePowerSetByLoopOverNumbers(int n) {
List<List<Boolean>> powerSet = new ArrayList<>();
for (int i = 0; i < (1 << n); i++) {
List<Boolean> subset = new ArrayList<>(n);
@ -174,7 +172,7 @@ public class PowerSetUtility<T> {
return powerSet;
}
private List<List<Boolean>> iterativePowerSetByLoopOverNumbersWithGrayCodeOrder(int n) {
private List<List<Boolean>> iterativePowerSetByLoopOverNumbersWithMinimalChange(int n) {
List<List<Boolean>> powerSet = new ArrayList<>();
for (int i = 0; i < (1 << n); i++) {
List<Boolean> subset = new ArrayList<>(n);
@ -195,32 +193,16 @@ public class PowerSetUtility<T> {
public List<List<T>> iterativePowerSetByLoopOverNumbers(Set<T> set) {
initializeMap(set);
List<List<Boolean>> sets = iterativePowerSetByLoopOverNumbersWithReverseLexicographicalOrder(set.size());
List<List<Boolean>> sets = iterativePowerSetByLoopOverNumbers(set.size());
return unMapListBinary(sets);
}
public List<List<T>> iterativePowerSetByLoopOverNumbersMinimalChange(Set<T> set) {
initializeMap(set);
List<List<Boolean>> sets = iterativePowerSetByLoopOverNumbersWithGrayCodeOrder(set.size());
List<List<Boolean>> sets = iterativePowerSetByLoopOverNumbersWithMinimalChange(set.size());
return unMapListBinary(sets);
}
public static int getRankInLexicographicalOrder(List<Boolean> subset) {
int rank = 0;
for (int i = 0; i < subset.size(); i++)
if (subset.get(i))
rank += (1 << (subset.size() - i - 1));
return rank;
}
public static List<Boolean> getSubsetForRankInLexicographicalOrder(int rank, int sizeOfSet) {
Boolean[] subset = new Boolean[sizeOfSet];
for(int j = 0; j < sizeOfSet; j++) {
subset[sizeOfSet - j - 1] = ((rank & (1 << j)) > 0);
}
return Arrays.asList(subset);
}
private Set<Set<Integer>> recursivePowerSetIndexRepresentation(int idx, int n) {
if (idx == n) {
Set<Set<Integer>> empty = new HashSet<>();

38
core-java-modules/core-java-lang-math/src/test/java/com/baeldung/powerset/PowerSetUtilityUnitTest.java
View File

@ -137,7 +137,7 @@ public class PowerSetUtilityUnitTest {
}
@Test
public void givenSet_WhenPowerSetIsCalculatedIterativePowerSetByLoopOverNumbersMinimalChange_ThenItContainsAllSubsetsInGrayOrder() {
public void givenSet_WhenPowerSetIsCalculatedIterativePowerSetByLoopOverNumbersWithMinimalChange_ThenItContainsAllSubsets() {
Set<String> set = RandomSetOfStringGenerator.generateRandomSet();
List<List<String>> powerSet = new PowerSetUtility<String>().iterativePowerSetByLoopOverNumbersMinimalChange(set);
@ -172,42 +172,6 @@ public class PowerSetUtilityUnitTest {
}
}
@Test
public void givenSubset_WhenPowerSetIsInLexicographicalOrder_ReturnCorrectRank() {
int n = new Random().nextInt(5) + 5; //a number in [5, 10)
for(int i = 0; i < ( 1 << n); i++) {
Boolean[] subset = new Boolean[n];
for(int j=0; j < n; j++) {
subset[n - j - 1] = ((i & (1 << j)) > 0);
}
Assertions.assertEquals(i, PowerSetUtility.getRankInLexicographicalOrder(Arrays.asList(subset)));
}
}
@Test
public void givenRanking_WhenPowerSetIsInLexicographicalOrder_ReturnTheSubset() {
int n = new Random().nextInt(5) + 5; //a number in [5, 10)
List<List<Boolean>> powerSet = new ArrayList<>();
for(int i = 0; i < (1 << n); i++) {
powerSet.add(PowerSetUtility.getSubsetForRankInLexicographicalOrder(i, n));
}
//To make sure that the size of power set is (2 power n)
MatcherAssert.assertThat(powerSet, IsCollectionWithSize.hasSize((1 << n)));
//To make sure that number of occurrence of each index is (2 power n-1)
Map<Integer, Integer> counter = new HashMap<>();
for (List<Boolean> subset : powerSet) {
for (int i = 0; i < subset.size(); i++) {
if(subset.get(i)) {
int num = counter.getOrDefault(i, 0);
counter.put(i, num + 1);
}
}
}
counter.forEach((k, v) -> Assertions.assertEquals((1 << (n - 1)), v.intValue()));
//To make sure that one subset is not generated twice
Assertions.assertEquals(powerSet.size(), new HashSet<>(powerSet).size());
}
static class RandomSetOfStringGenerator {
private static List<String> fruits = Arrays.asList("Apples", "Avocados", "Banana", "Blueberry", "Cherry", "Clementine", "Cucumber", "Date", "Fig",
"Grapefruit"/*, "Grape", "Kiwi", "Lemon", "Mango", "Mulberry", "Melon", "Nectarine", "Olive", "Orange"*/);

6
core-java-modules/core-java-lang-operators/src/test/java/com/baeldung/ternaryoperator/TernaryOperatorUnitTest.java
View File

@ -6,7 +6,7 @@ import org.junit.Test;
public class TernaryOperatorUnitTest {
@Test
public void givenACondition_whenUsingTernaryOperator_thenItEvaluatesConditionAndReturnsAValue() {
public void whenUsingTernaryOperator_thenConditionIsEvaluatedAndValueReturned() {
int number = 10;
String msg = number > 10 ? "Number is greater than 10" : "Number is less than or equal to 10";
@ -14,7 +14,7 @@ public class TernaryOperatorUnitTest {
}
@Test
public void givenATrueCondition_whenUsingTernaryOperator_thenOnlyExpression1IsEvaluated() {
public void whenConditionIsTrue_thenOnlyFirstExpressionIsEvaluated() {
int exp1 = 0, exp2 = 0;
int result = 12 > 10 ? ++exp1 : ++exp2;
@ -24,7 +24,7 @@ public class TernaryOperatorUnitTest {
}
@Test
public void givenAFalseCondition_whenUsingTernaryOperator_thenOnlyExpression2IsEvaluated() {
public void whenConditionIsFalse_thenOnlySecondExpressionIsEvaluated() {
int exp1 = 0, exp2 = 0;
int result = 8 > 10 ? ++exp1 : ++exp2;

2
core-java-modules/pom.xml
View File

@ -18,7 +18,7 @@
<module>core-java-optional</module>
<module>core-java-lang-operators</module>
<module>core-java-networking-2</module>
<module>core-java-date-operations</module>
<module>core-java-date-operations-2</module>
</modules>
</project>

5
java-numbers-2/pom.xml
View File

@ -21,6 +21,11 @@
<artifactId>jmh-generator-annprocess</artifactId>
<version>${jmh-generator.version}</version>
</dependency>
<dependency>
<groupId>it.unimi.dsi</groupId>
<artifactId>dsiutils</artifactId>
<version>2.6.0</version>
</dependency>
</dependencies>
<build>

91
java-numbers-2/src/main/java/com/baeldung/randomnumbers/RandomNumbersGenerator.java Normal file
View File

@ -0,0 +1,91 @@
package com.baeldung.randomnumbers;
import java.security.SecureRandom;
import java.util.Random;
import java.util.SplittableRandom;
import java.util.concurrent.ThreadLocalRandom;
import java.util.stream.IntStream;
import org.apache.commons.math3.random.RandomDataGenerator;
import it.unimi.dsi.util.XoRoShiRo128PlusRandom;
public class RandomNumbersGenerator {
public Integer generateRandomWithMathRandom(int max, int min) {
return (int) ((Math.random() * (max - min)) + min);
}
public Integer generateRandomWithNextInt() {
Random random = new Random();
int randomWithNextInt = random.nextInt();
return randomWithNextInt;
}
public Integer generateRandomWithNextIntWithinARange(int min, int max) {
Random random = new Random();
int randomWintNextIntWithinARange = random.nextInt(max - min) + min;
return randomWintNextIntWithinARange;
}
public IntStream generateRandomUnlimitedIntStream() {
Random random = new Random();
IntStream unlimitedIntStream = random.ints();
return unlimitedIntStream;
}
public IntStream generateRandomLimitedIntStream(long streamSize) {
Random random = new Random();
IntStream limitedIntStream = random.ints(streamSize);
return limitedIntStream;
}
public IntStream generateRandomLimitedIntStreamWithinARange(int min, int max, long streamSize) {
Random random = new Random();
IntStream limitedIntStreamWithinARange = random.ints(streamSize, min, max);
return limitedIntStreamWithinARange;
}
public Integer generateRandomWithThreadLocalRandom() {
int randomWithThreadLocalRandom = ThreadLocalRandom.current()
.nextInt();
return randomWithThreadLocalRandom;
}
public Integer generateRandomWithThreadLocalRandomInARange(int min, int max) {
int randomWithThreadLocalRandomInARange = ThreadLocalRandom.current()
.nextInt(min, max);
return randomWithThreadLocalRandomInARange;
}
public Integer generateRandomWithThreadLocalRandomFromZero(int max) {
int randomWithThreadLocalRandomFromZero = ThreadLocalRandom.current()
.nextInt(max);
return randomWithThreadLocalRandomFromZero;
}
public Integer generateRandomWithSplittableRandom(int min, int max) {
SplittableRandom splittableRandom = new SplittableRandom();
int randomWithSplittableRandom = splittableRandom.nextInt(min, max);
return randomWithSplittableRandom;
}
public Integer generateRandomWithSecureRandom() {
SecureRandom secureRandom = new SecureRandom();
int randomWithSecureRandom = secureRandom.nextInt();
return randomWithSecureRandom;
}
public Integer generateRandomWithRandomDataGenerator(int min, int max) {
RandomDataGenerator randomDataGenerator = new RandomDataGenerator();
int randomWithRandomDataGenerator = randomDataGenerator.nextInt(min, max);
return randomWithRandomDataGenerator;
}
public Integer generateRandomWithXoRoShiRo128PlusRandom(int min, int max) {
XoRoShiRo128PlusRandom xoroRandom = new XoRoShiRo128PlusRandom();
int randomWithXoRoShiRo128PlusRandom = xoroRandom.nextInt(max - min) + min;
return randomWithXoRoShiRo128PlusRandom;
}
}

137
java-numbers-2/src/test/java/com/baeldung/randomnumbers/RandomNumbersGeneratorUnitTest.java Normal file
View File

@ -0,0 +1,137 @@
package com.baeldung.randomnumbers;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertTrue;
import java.util.stream.IntStream;
import org.junit.Test;
public class RandomNumbersGeneratorUnitTest {
private static final int MIN_RANGE = 1;
private static final int MAX_RANGE = 10;
private static final int ITERATIONS = 50;
private static final long STREAM_SIZE = 50;
@Test
public void whenGenerateRandomWithMathRandom_returnsSuccessfully() {
RandomNumbersGenerator generator = new RandomNumbersGenerator();
for (int i = 0; i < ITERATIONS; i++) {
int randomNumer = generator.generateRandomWithMathRandom(MIN_RANGE, MAX_RANGE);
assertTrue(isInRange(randomNumer, Integer.MIN_VALUE, Integer.MAX_VALUE));
}
}
@Test
public void whenGenerateRandomWithNextInt_returnsSuccessfully() {
RandomNumbersGenerator generator = new RandomNumbersGenerator();
for (int i = 0; i < ITERATIONS; i++) {
int randomNumber = generator.generateRandomWithNextInt();
assertTrue(isInRange(randomNumber, Integer.MIN_VALUE, Integer.MAX_VALUE));
}
}
@Test
public void whenGenerateRandomWithNextIntWithinARange_returnsSuccessfully() {
RandomNumbersGenerator generator = new RandomNumbersGenerator();
for (int i = 0; i < ITERATIONS; i++) {
int randomNumber = generator.generateRandomWithNextIntWithinARange(MIN_RANGE, MAX_RANGE);
assertTrue(isInRange(randomNumber, MIN_RANGE, MAX_RANGE));
}
}
@Test
public void whenGenerateRandomUnlimitedIntStream_returnsSuccessfully() {
RandomNumbersGenerator generator = new RandomNumbersGenerator();
IntStream stream = generator.generateRandomUnlimitedIntStream();
assertNotNull(stream);
Integer randomNumber = stream.findFirst()
.getAsInt();
assertNotNull(randomNumber);
assertTrue(isInRange(randomNumber, Integer.MIN_VALUE, Integer.MAX_VALUE));
}
@Test
public void whenGenerateRandomLimitedIntStream_returnsSuccessfully() {
RandomNumbersGenerator generator = new RandomNumbersGenerator();
generator.generateRandomLimitedIntStream(STREAM_SIZE)
.forEach(randomNumber -> assertTrue(isInRange(randomNumber, Integer.MIN_VALUE, Integer.MAX_VALUE)));
}
@Test
public void whenGenerateRandomLimitedIntStreamWithinARange_returnsSuccessfully() {
RandomNumbersGenerator generator = new RandomNumbersGenerator();
generator.generateRandomLimitedIntStreamWithinARange(MIN_RANGE, MAX_RANGE, STREAM_SIZE)
.forEach(randomNumber -> assertTrue(isInRange(randomNumber, MIN_RANGE, MAX_RANGE)));
}
@Test
public void whenGenerateRandomWithThreadLocalRandom_returnsSuccessfully() {
RandomNumbersGenerator generator = new RandomNumbersGenerator();
for (int i = 0; i < ITERATIONS; i++) {
int randomNumber = generator.generateRandomWithThreadLocalRandom();
assertTrue(isInRange(randomNumber, Integer.MIN_VALUE, Integer.MAX_VALUE));
}
}
@Test
public void whenGenerateRandomWithThreadLocalRandomInARange_returnsSuccessfully() {
RandomNumbersGenerator generator = new RandomNumbersGenerator();
for (int i = 0; i < ITERATIONS; i++) {
int randomNumber = generator.generateRandomWithThreadLocalRandomInARange(MIN_RANGE, MAX_RANGE);
assertTrue(isInRange(randomNumber, MIN_RANGE, MAX_RANGE));
}
}
@Test
public void whenGenerateRandomWithThreadLocalRandomFromZero_returnsSuccessfully() {
RandomNumbersGenerator generator = new RandomNumbersGenerator();
for (int i = 0; i < ITERATIONS; i++) {
int randomNumber = generator.generateRandomWithThreadLocalRandomFromZero(MAX_RANGE);
assertTrue(isInRange(randomNumber, 0, MAX_RANGE));
}
}
@Test
public void whenGenerateRandomWithSplittableRandom_returnsSuccessfully() {
RandomNumbersGenerator generator = new RandomNumbersGenerator();
for (int i = 0; i < ITERATIONS; i++) {
int randomNumber = generator.generateRandomWithSplittableRandom(MIN_RANGE, MAX_RANGE);
assertTrue(isInRange(randomNumber, MIN_RANGE, MAX_RANGE));
}
}
@Test
public void whenGenerateRandomWithSecureRandom_returnsSuccessfully() {
RandomNumbersGenerator generator = new RandomNumbersGenerator();
for (int i = 0; i < ITERATIONS; i++) {
int randomNumber = generator.generateRandomWithSecureRandom();
assertTrue(isInRange(randomNumber, Integer.MIN_VALUE, Integer.MAX_VALUE));
}
}
@Test
public void whenGenerateRandomWithRandomDataGenerator_returnsSuccessfully() {
RandomNumbersGenerator generator = new RandomNumbersGenerator();
for (int i = 0; i < ITERATIONS; i++) {
int randomNumber = generator.generateRandomWithRandomDataGenerator(MIN_RANGE, MAX_RANGE);
// RandomDataGenerator top is inclusive
assertTrue(isInRange(randomNumber, MIN_RANGE, MAX_RANGE + 1));
}
}
@Test
public void whenGenerateRandomWithXoRoShiRo128PlusRandom_returnsSuccessfully() {
RandomNumbersGenerator generator = new RandomNumbersGenerator();
for (int i = 0; i < ITERATIONS; i++) {
int randomNumber = generator.generateRandomWithXoRoShiRo128PlusRandom(MIN_RANGE, MAX_RANGE);
assertTrue(isInRange(randomNumber, MIN_RANGE, MAX_RANGE));
}
}
private boolean isInRange(int number, int min, int max) {
return min <= number && number < max;
}
}

2
netflix/README.md → netflix-modules/README.md
View File

@ -1,4 +1,4 @@
## Netflix
## Netflix Modules
This module contains articles about Netflix.

2
netflix/genie/pom.xml → netflix-modules/genie/pom.xml
View File

@ -10,7 +10,7 @@
<parent>
<groupId>com.baeldung</groupId>
<artifactId>netflix</artifactId>
<artifactId>netflix-modules</artifactId>
<version>1.0.0-SNAPSHOT</version>
</parent>

0
netflix/genie/src/main/resources/com/baeldung/netflix/genie/docker/docker-compose.yml → netflix-modules/genie/src/main/resources/com/baeldung/netflix/genie/docker/docker-compose.yml
View File

0
netflix/genie/src/main/resources/com/baeldung/netflix/genie/docker/init_demo.py → netflix-modules/genie/src/main/resources/com/baeldung/netflix/genie/docker/init_demo.py
View File

0
netflix/genie/src/main/resources/com/baeldung/netflix/genie/docker/run_spark_submit_job.py → netflix-modules/genie/src/main/resources/com/baeldung/netflix/genie/docker/run_spark_submit_job.py
View File

4
netflix/pom.xml → netflix-modules/pom.xml
View File

@ -2,9 +2,9 @@
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<artifactId>netflix</artifactId>
<artifactId>netflix-modules</artifactId>
<version>1.0.0-SNAPSHOT</version>
<name>Netflix</name>
<name>Netflix Modules</name>
<packaging>pom</packaging>
<description>Module for Netflix projects</description>

14
pom.xml
View File

@ -341,6 +341,7 @@
<module>algorithms-miscellaneous-4</module>
<module>algorithms-miscellaneous-5</module>
<module>algorithms-sorting</module>
<module>algorithms-sorting-2</module>
<module>algorithms-searching</module>
<module>animal-sniffer-mvn-plugin</module>
<module>annotations</module>
@ -400,7 +401,7 @@
<module>core-java-modules/core-java-lang-math</module>
<!-- We haven't upgraded to java 9.-->
<!--
<module>core-java-modules/core-java-datetime-computations</module>
<module>core-java-modules/core-java-date-operations-1</module>
<module>core-java-modules/core-java-datetime-conversion</module>
<module>core-java-modules/core-java-datetime-java8</module>
<module>core-java-modules/core-java-datetime-string</module>
@ -586,8 +587,9 @@
<!-- <module>muleesb</module> --> <!-- Fixing in BAEL-10878 -->
<module>mustache</module>
<module>mybatis</module>
<module>ninja</module>
<module>netflix</module>
<module>netflix-modules</module>
<module>optaplanner</module>
<module>orika</module>
@ -669,7 +671,7 @@
</build>
<modules>
<module>netflix</module>
<module>netflix-modules</module>
<module>parent-boot-1</module>
<module>parent-boot-2</module>
@ -984,6 +986,7 @@
<module>algorithms-miscellaneous-4</module>
<module>algorithms-miscellaneous-5</module>
<module>algorithms-sorting</module>
<module>algorithms-sorting-2</module>
<module>algorithms-searching</module>
<module>animal-sniffer-mvn-plugin</module>
<module>annotations</module>
@ -1040,7 +1043,7 @@
<module>core-java-modules/core-java-lang-math</module>
<!-- We haven't upgraded to java 9.-->
<!--
<module>core-java-modules/core-java-datetime-computations</module>
<module>core-java-modules/core-java-date-operations-1</module>
<module>core-java-modules/core-java-datetime-conversion</module>
<module>core-java-modules/core-java-datetime-java8</module>
<module>core-java-modules/core-java-datetime-string</module>
@ -1218,8 +1221,9 @@
<!-- <module>muleesb</module> --> <!-- Fixing in BAEL-10878 -->
<module>mustache</module>
<module>mybatis</module>
<module>ninja</module>
<module>netflix</module>
<module>netflix-modules</module>
<module>optaplanner</module>
<module>orika</module>

1
spring-boot-admin/pom.xml
View File

@ -11,6 +11,7 @@
<groupId>com.baeldung</groupId>
<artifactId>parent-boot-2</artifactId>
<version>0.0.1-SNAPSHOT</version>
<relativePath>../parent-boot-2</relativePath>
</parent>
<modules>

24
spring-boot-properties/src/test/java/com/baeldung/properties/testproperty/FilePropertyInjectionUnitTest.java Normal file
View File

@ -0,0 +1,24 @@
package com.baeldung.properties.testproperty;
import org.assertj.core.api.Assertions;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.TestPropertySource;
import org.springframework.test.context.junit4.SpringRunner;
import static org.assertj.core.api.Assertions.assertThat;
@RunWith(SpringRunner.class)
@TestPropertySource("/foo.properties")
public class FilePropertyInjectionUnitTest {
@Value("${foo}")
private String foo;
@Test
public void whenFilePropertyProvided_thenProperlyInjected() {
assertThat(foo).isEqualTo("bar");
}
}

23
spring-boot-properties/src/test/java/com/baeldung/properties/testproperty/PropertyInjectionUnitTest.java Normal file
View File

@ -0,0 +1,23 @@
package com.baeldung.properties.testproperty;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.TestPropertySource;
import org.springframework.test.context.junit4.SpringRunner;
import static org.assertj.core.api.Assertions.assertThat;
@RunWith(SpringRunner.class)
@TestPropertySource(properties = {"foo=bar"})
public class PropertyInjectionUnitTest {
@Value("${foo}")
private String foo;
@Test
public void whenPropertyProvided_thenProperlyInjected() {
assertThat(foo).isEqualTo("bar");
}
}

23
spring-boot-properties/src/test/java/com/baeldung/properties/testproperty/SpringBootPropertyInjectionIntegrationTest.java Normal file
View File

@ -0,0 +1,23 @@
package com.baeldung.properties.testproperty;
import com.baeldung.properties.reloading.SpringBootPropertiesTestApplication;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;
import static org.assertj.core.api.Assertions.assertThat;
@RunWith(SpringRunner.class)
@SpringBootTest(properties = {"foo=bar"}, classes = SpringBootPropertiesTestApplication.class)
public class SpringBootPropertyInjectionIntegrationTest {
@Value("${foo}")
private String foo;
@Test
public void whenSpringBootPropertyProvided_thenProperlyInjected() {
assertThat(foo).isEqualTo("bar");
}
}

1
spring-boot-properties/src/test/resources/foo.properties Normal file
View File

@ -0,0 +1 @@
foo=bar

16
spring-boot/pom.xml
View File

@ -7,16 +7,17 @@
<name>spring-boot</name>
<packaging>war</packaging>
<description>This is simple boot application for Spring boot actuator test</description>
<version>0.0.1-SNAPSHOT</version>
<parent>
<groupId>com.baeldung</groupId>
<artifactId>parent-boot-2</artifactId>
<groupId>com.baeldung</groupId>
<version>0.0.1-SNAPSHOT</version>
<relativePath>../parent-boot-2</relativePath>
</parent>
<dependencies>
<!-- JUnit Jupiter dependencies -->
<dependency>
<groupId>org.junit.jupiter</groupId>
@ -198,6 +199,16 @@
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-resources-plugin</artifactId>
<configuration>
<delimiters>
<delimiter>@</delimiter>
</delimiters>
<useDefaultDelimiters>false</useDefaultDelimiters>
</configuration>
</plugin>
</plugins>
</build>
@ -251,6 +262,7 @@
<graphql-java-tools.version>5.2.4</graphql-java-tools.version>
<guava.version>18.0</guava.version>
<git-commit-id-plugin.version>2.2.4</git-commit-id-plugin.version>
<resource.delimiter>@</resource.delimiter>
</properties>
</project>

18
spring-boot/src/main/java/com/baeldung/buildproperties/Application.java Normal file
View File

@ -0,0 +1,18 @@
package com.baeldung.buildproperties;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.PropertySource;
@SpringBootApplication
@ComponentScan(basePackages = "com.baeldung.buildproperties")
@PropertySource("classpath:build.properties")
//@PropertySource("classpath:build.yml")
public class Application {
public static void main(String[] args) {
SpringApplication.run(Application.class, args);
}
}

21
spring-boot/src/main/java/com/baeldung/buildproperties/BuildInfoService.java Normal file
View File

@ -0,0 +1,21 @@
package com.baeldung.buildproperties;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Service;
@Service
public class BuildInfoService {
@Value("${application-description}")
private String applicationDescription;
@Value("${application-version}")
private String applicationVersion;
public String getApplicationDescription() {
return applicationDescription;
}
public String getApplicationVersion() {
return applicationVersion;
}
}

2
spring-boot/src/main/resources/build.properties Normal file
View File

@ -0,0 +1,2 @@
application-description=@project.description@
application-version=@project.version@

Some files were not shown because too many files have changed in this diff Show More