Merge branch 'master' of https://github.com/eugenp/tutorials

core-java-8/findItemsBasedOnValues/.gitignore

@@ -1 +0,0 @@
-/bin/

core-java-collections/src/test/java/com/baeldung/findItems/FindItemsBasedOnOtherStreamUnitTest.java

@@ -1,93 +1,89 @@
-package findItems;
-
-import static org.junit.Assert.assertEquals;
-
-import java.text.ParseException;
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.List;
-import java.util.stream.Collectors;
-
-import org.junit.Test;
-
-public class FindItemsBasedOnValues {
-
-    List<Employee> EmplList = new ArrayList<Employee>();
-    List<Department> deptList = new ArrayList<Department>();
-
-    public static void main(String[] args) throws ParseException {
-        FindItemsBasedOnValues findItems = new FindItemsBasedOnValues();
-        findItems.givenDepartmentList_thenEmployeeListIsFilteredCorrectly();
-    }
-
-    @Test
-    public void givenDepartmentList_thenEmployeeListIsFilteredCorrectly() {
-        Integer expectedId = 1002;
-
-        populate(EmplList, deptList);
-
-        List<Employee> filteredList = EmplList.stream()
-            .filter(empl -> deptList.stream()
-                .anyMatch(dept -> dept.getDepartment()
-                    .equals("sales") && empl.getEmployeeId()
-                    .equals(dept.getEmployeeId())))
-            .collect(Collectors.toList());
-
-        assertEquals(expectedId, filteredList.get(0)
-            .getEmployeeId());
-    }
-
-    private void populate(List<Employee> EmplList, List<Department> deptList) {
-        Employee employee1 = new Employee(1001, "empl1");
-        Employee employee2 = new Employee(1002, "empl2");
-        Employee employee3 = new Employee(1003, "empl3");
-
-        Collections.addAll(EmplList, employee1, employee2, employee3);
-
-        Department department1 = new Department(1002, "sales");
-        Department department2 = new Department(1003, "marketing");
-        Department department3 = new Department(1004, "sales");
-
-        Collections.addAll(deptList, department1, department2, department3);
-    }
-}
-
-class Employee {
-    Integer employeeId;
-    String employeeName;
-
-    public Employee(Integer employeeId, String employeeName) {
-        super();
-        this.employeeId = employeeId;
-        this.employeeName = employeeName;
-    }
-
-    public Integer getEmployeeId() {
-        return employeeId;
-    }
-
-    public String getEmployeeName() {
-        return employeeName;
-    }
-
-}
-
-class Department {
-    Integer employeeId;
-    String department;
-
-    public Department(Integer employeeId, String department) {
-        super();
-        this.employeeId = employeeId;
-        this.department = department;
-    }
-
-    public Integer getEmployeeId() {
-        return employeeId;
-    }
-
-    public String getDepartment() {
-        return department;
-    }
-
+package com.baeldung.findItems;
+
+import static org.junit.Assert.assertEquals;
+
+import java.text.ParseException;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+import java.util.stream.Collectors;
+
+import org.junit.Test;
+
+public class FindItemsBasedOnOtherStreamUnitTest {
+
+    private List<Employee> employeeList = new ArrayList<Employee>();
+
+    private List<Department> departmentList = new ArrayList<Department>();
+
+    @Test
+    public void givenDepartmentList_thenEmployeeListIsFilteredCorrectly() {
+        Integer expectedId = 1002;
+
+        populate(employeeList, departmentList);
+
+        List<Employee> filteredList = employeeList.stream()
+            .filter(empl -> departmentList.stream()
+                .anyMatch(dept -> dept.getDepartment()
+                    .equals("sales") && empl.getEmployeeId()
+                    .equals(dept.getEmployeeId())))
+            .collect(Collectors.toList());
+
+        assertEquals(expectedId, filteredList.get(0)
+            .getEmployeeId());
+    }
+
+    private void populate(List<Employee> EmplList, List<Department> deptList) {
+        Employee employee1 = new Employee(1001, "empl1");
+        Employee employee2 = new Employee(1002, "empl2");
+        Employee employee3 = new Employee(1003, "empl3");
+
+        Collections.addAll(EmplList, employee1, employee2, employee3);
+
+        Department department1 = new Department(1002, "sales");
+        Department department2 = new Department(1003, "marketing");
+        Department department3 = new Department(1004, "sales");
+
+        Collections.addAll(deptList, department1, department2, department3);
+    }
+}
+
+class Employee {
+    private Integer employeeId;
+    private String employeeName;
+
+    Employee(Integer employeeId, String employeeName) {
+        super();
+        this.employeeId = employeeId;
+        this.employeeName = employeeName;
+    }
+
+    Integer getEmployeeId() {
+        return employeeId;
+    }
+
+    public String getEmployeeName() {
+        return employeeName;
+    }
+
+}
+
+class Department {
+    private Integer employeeId;
+    private String department;
+
+    Department(Integer employeeId, String department) {
+        super();
+        this.employeeId = employeeId;
+        this.department = department;
+    }
+
+    Integer getEmployeeId() {
+        return employeeId;
+    }
+
+    String getDepartment() {
+        return department;
+    }
+
 }

core-java/src/test/java/com/baeldung/modulo/ModuloUnitTest.java

@@ -0,0 +1,54 @@
+package com.baeldung.modulo;
+
+import org.junit.Test;
+import static org.assertj.core.api.Java6Assertions.*;
+
+public class ModuloUnitTest {
+
+  @Test
+  public void whenIntegerDivision_thenLosesRemainder(){
+    assertThat(11 / 4).isEqualTo(2);
+  }
+
+  @Test
+  public void whenDoubleDivision_thenKeepsRemainder(){
+    assertThat(11 / 4.0).isEqualTo(2.75);
+  }
+
+  @Test
+  public void whenModulo_thenReturnsRemainder(){
+    assertThat(11 % 4).isEqualTo(3);
+  }
+
+  @Test(expected = ArithmeticException.class)
+  public void whenDivisionByZero_thenArithmeticException(){
+    double result = 1 / 0;
+  }
+
+  @Test(expected = ArithmeticException.class)
+  public void whenModuloByZero_thenArithmeticException(){
+    double result = 1 % 0;
+  }
+
+  @Test
+  public void whenDivisorIsOddAndModulusIs2_thenResultIs1(){
+    assertThat(3 % 2).isEqualTo(1);
+  }
+
+  @Test
+  public void whenDivisorIsEvenAndModulusIs2_thenResultIs0(){
+    assertThat(4 % 2).isEqualTo(0);
+  }
+
+  @Test
+  public void whenItemsIsAddedToCircularQueue_thenNoArrayIndexOutOfBounds(){
+    int QUEUE_CAPACITY= 10;
+    int[] circularQueue = new int[QUEUE_CAPACITY];
+    int itemsInserted = 0;
+    for (int value = 0; value < 1000; value++) {
+      int writeIndex = ++itemsInserted % QUEUE_CAPACITY;
+      circularQueue[writeIndex] = value;
+    }
+  }
+
+}

guava-collections/.gitignore

@@ -0,0 +1,13 @@
+*.class
+
+#folders#
+/target
+/neoDb*
+/data
+/src/main/webapp/WEB-INF/classes
+*/META-INF/*
+
+# Packaged files #
+*.jar
+*.war
+*.ear

guava-collections/README.md

@@ -0,0 +1,20 @@
+=========
+
+## Guava and Hamcrest Cookbooks and Examples
+
+
+### Relevant Articles: 
+- [Guava Collections Cookbook](http://www.baeldung.com/guava-collections)
+- [Guava Ordering Cookbook](http://www.baeldung.com/guava-order)
+- [Hamcrest Collections Cookbook](http://www.baeldung.com/hamcrest-collections-arrays)
+- [Partition a List in Java](http://www.baeldung.com/java-list-split)
+- [Filtering and Transforming Collections in Guava](http://www.baeldung.com/guava-filter-and-transform-a-collection)
+- [Guava – Join and Split Collections](http://www.baeldung.com/guava-joiner-and-splitter-tutorial)
+- [Guava – Lists](http://www.baeldung.com/guava-lists)
+- [Guava – Sets](http://www.baeldung.com/guava-sets)
+- [Guava – Maps](http://www.baeldung.com/guava-maps)
+- [Guide to Guava Multimap](http://www.baeldung.com/guava-multimap)
+- [Guide to Guava RangeSet](http://www.baeldung.com/guava-rangeset)
+- [Guide to Guava RangeMap](http://www.baeldung.com/guava-rangemap)
+- [Guide to Guava MinMaxPriorityQueue and EvictingQueue](http://www.baeldung.com/guava-minmax-priority-queue-and-evicting-queue)
+- [Initialize a HashMap in Java](https://www.baeldung.com/java-initialize-hashmap)

guava-collections/pom.xml

@@ -0,0 +1,66 @@
+<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>
+    <groupId>com.baeldung</groupId>
+    <artifactId>guava-collections</artifactId>
+    <version>0.1.0-SNAPSHOT</version>
+    <name>guava-collections</name>
+
+    <parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>parent-java</artifactId>
+        <version>0.0.1-SNAPSHOT</version>
+        <relativePath>../parent-java</relativePath>
+    </parent>
+
+    <dependencies>
+        <!-- utils -->
+        <dependency>
+            <groupId>org.apache.commons</groupId>
+            <artifactId>commons-collections4</artifactId>
+            <version>${commons-collections4.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.commons</groupId>
+            <artifactId>commons-lang3</artifactId>
+            <version>${commons-lang3.version}</version>
+        </dependency>
+        <!-- test scoped -->
+        <dependency>
+            <groupId>org.assertj</groupId>
+            <artifactId>assertj-core</artifactId>
+            <version>${assertj.version}</version>
+            <scope>test</scope>
+        </dependency>
+
+        <!-- https://mvnrepository.com/artifact/org.hamcrest/java-hamcrest -->
+        <dependency>
+            <groupId>org.hamcrest</groupId>
+            <artifactId>java-hamcrest</artifactId>
+            <version>${java-hamcrest.version}</version>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <finalName>guava</finalName>
+        <resources>
+            <resource>
+                <directory>src/main/resources</directory>
+                <filtering>true</filtering>
+            </resource>
+        </resources>
+    </build>
+
+    <properties>
+        <!-- util -->
+        <guava.version>24.0-jre</guava.version>
+        <commons-lang3.version>3.5</commons-lang3.version>
+        <commons-collections4.version>4.1</commons-collections4.version>
+
+        <!-- testing -->
+        <assertj.version>3.6.1</assertj.version>
+        <java-hamcrest.version>2.0.0.0</java-hamcrest.version>
+    </properties>
+
+</project>

guava-collections/src/main/resources/logback.xml

@@ -0,0 +1,19 @@
+<?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>
+
+    <logger name="org.springframework" level="WARN" />
+    <logger name="org.springframework.transaction" level="WARN" />
+
+    <!-- in order to debug some marshalling issues, this needs to be TRACE -->
+    <logger name="org.springframework.web.servlet.mvc" level="WARN" />
+
+    <root level="INFO">
+        <appender-ref ref="STDOUT" />
+    </root>
+</configuration>

guava-collections/src/test/resources/.gitignore

@@ -0,0 +1,13 @@
+*.class
+
+#folders#
+/target
+/neoDb*
+/data
+/src/main/webapp/WEB-INF/classes
+*/META-INF/*
+
+# Packaged files #
+*.jar
+*.war
+*.ear

guava-collections/src/test/resources/test.out

@@ -0,0 +1 @@
+John Jane Adam Tom 

guava-collections/src/test/resources/test1.in

@@ -0,0 +1 @@
+Hello world

guava-collections/src/test/resources/test1_1.in

@@ -0,0 +1 @@
+Test

guava-collections/src/test/resources/test2.in

@@ -0,0 +1,4 @@
+John
+Jane
+Adam
+Tom

guava-collections/src/test/resources/test_copy.in

@@ -0,0 +1 @@
+Hello world

guava/README.md

@@ -4,33 +4,19 @@
 
 
 ### Relevant Articles: 
-- [Guava Collections Cookbook](http://www.baeldung.com/guava-collections)
-- [Guava Ordering Cookbook](http://www.baeldung.com/guava-order)
 - [Guava Functional Cookbook](http://www.baeldung.com/guava-functions-predicates)
-- [Hamcrest Collections Cookbook](http://www.baeldung.com/hamcrest-collections-arrays)
-- [Partition a List in Java](http://www.baeldung.com/java-list-split)
-- [Filtering and Transforming Collections in Guava](http://www.baeldung.com/guava-filter-and-transform-a-collection)
-- [Guava – Join and Split Collections](http://www.baeldung.com/guava-joiner-and-splitter-tutorial)
 - [Guava – Write to File, Read from File](http://www.baeldung.com/guava-write-to-file-read-from-file)
-- [Guava – Lists](http://www.baeldung.com/guava-lists)
-- [Guava – Sets](http://www.baeldung.com/guava-sets)
-- [Guava – Maps](http://www.baeldung.com/guava-maps)
 - [Guava Set + Function = Map](http://www.baeldung.com/guava-set-function-map-tutorial)
 - [Guide to Guava’s Ordering](http://www.baeldung.com/guava-ordering)
 - [Guide to Guava’s PreConditions](http://www.baeldung.com/guava-preconditions)
 - [Introduction to Guava CacheLoader](http://www.baeldung.com/guava-cacheloader)
 - [Introduction to Guava Memoizer](http://www.baeldung.com/guava-memoizer)
 - [Guide to Guava’s EventBus](http://www.baeldung.com/guava-eventbus)
-- [Guide to Guava Multimap](http://www.baeldung.com/guava-multimap)
-- [Guide to Guava RangeSet](http://www.baeldung.com/guava-rangeset)
-- [Guide to Guava RangeMap](http://www.baeldung.com/guava-rangemap)
 - [Guide to Guava Table](http://www.baeldung.com/guava-table)
 - [Guide to Guava’s Reflection Utilities](http://www.baeldung.com/guava-reflection)
 - [Guide to Guava ClassToInstanceMap](http://www.baeldung.com/guava-class-to-instance-map)
-- [Guide to Guava MinMaxPriorityQueue and EvictingQueue](http://www.baeldung.com/guava-minmax-priority-queue-and-evicting-queue)
 - [Guide to Mathematical Utilities in Guava](http://www.baeldung.com/guava-math)
 - [Bloom Filter in Java using Guava](http://www.baeldung.com/guava-bloom-filter)
 - [Using Guava CountingOutputStream](http://www.baeldung.com/guava-counting-outputstream)
 - [Hamcrest Text Matchers](http://www.baeldung.com/hamcrest-text-matchers)
 - [Quick Guide to the Guava RateLimiter](http://www.baeldung.com/guava-rate-limiter)
-- [Initialize a HashMap in Java](https://www.baeldung.com/java-initialize-hashmap)

guava/pom.xml

@@ -14,12 +14,6 @@
     </parent>
 
     <dependencies>
-        <!-- utils -->
-        <dependency>
-            <groupId>org.apache.commons</groupId>
-            <artifactId>commons-collections4</artifactId>
-            <version>${commons-collections4.version}</version>
-        </dependency>
         <dependency>
             <groupId>org.apache.commons</groupId>
             <artifactId>commons-lang3</artifactId>
@@ -56,7 +50,6 @@
         <!-- util -->
         <guava.version>24.0-jre</guava.version>
         <commons-lang3.version>3.5</commons-lang3.version>
-        <commons-collections4.version>4.1</commons-collections4.version>
 
         <!-- testing -->
         <assertj.version>3.6.1</assertj.version>

javaxval/README.md

@@ -9,3 +9,4 @@ The "REST With Spring" Classes: http://bit.ly/restwithspring
 - [Java Bean Validation Basics](http://www.baeldung.com/javax-validation)
 - [Validating Container Elements with Bean Validation 2.0](http://www.baeldung.com/bean-validation-container-elements)
 - [Method Constraints with Bean Validation 2.0](http://www.baeldung.com/javax-validation-method-constraints)
+- [Difference Between @NotNull, @NotEmpty, and @NotBlank Constraints in Bean Validation](https://www.baeldung.com/java-bean-validation-not-null-empty-blank)

parent-boot-1/pom.xml

@@ -17,7 +17,7 @@
 			<dependency>
 				<groupId>org.springframework.boot</groupId>
 				<artifactId>spring-boot-dependencies</artifactId>
-				<version>1.5.15.RELEASE</version>
+				<version>1.5.16.RELEASE</version>
 				<type>pom</type>
 				<scope>import</scope>
 			</dependency>

pom.xml

@@ -378,6 +378,7 @@
 				<module>google-web-toolkit</module>
 				<module>gson</module>
 				<module>guava</module>
+				<module>guava-collections</module>
 				<module>guava-modules/guava-18</module>
 				<module>guava-modules/guava-19</module>
 				<module>guava-modules/guava-21</module>
@@ -1285,6 +1286,7 @@
 				<module>google-cloud</module>
 				<module>gson</module>
 				<module>guava</module>
+				<module>guava-collections</module>
 				<module>guava-modules/guava-18</module>
 				<module>guava-modules/guava-19</module>
 				<module>guava-modules/guava-21</module>