Merge pull request #6029 from amit2103/BAEL-11403

[BAEL-11403] - Moved articles out of core-java (part 4)

core-java-collections/README.md

@@ -29,3 +29,4 @@
 - [Sorting in Java](http://www.baeldung.com/java-sorting)
 - [Join and Split Arrays and Collections in Java](http://www.baeldung.com/java-join-and-split)
 - [A Guide to EnumMap](https://www.baeldung.com/java-enum-map)
+- [A Guide to Iterator in Java](http://www.baeldung.com/java-iterator)

core-java/README.md

@@ -22,12 +22,9 @@
 - [Difference between URL and URI](http://www.baeldung.com/java-url-vs-uri)
 - [Creating a Java Compiler Plugin](http://www.baeldung.com/java-build-compiler-plugin)
 - [Quick Guide to Java Stack](http://www.baeldung.com/java-stack)
-- [Guide to java.util.Formatter](http://www.baeldung.com/java-string-formatter)
 - [Compiling Java *.class Files with javac](http://www.baeldung.com/javac)
-- [A Guide to Iterator in Java](http://www.baeldung.com/java-iterator)
 - [Introduction to Javadoc](http://www.baeldung.com/javadoc)
 - [Guide to the Externalizable Interface in Java](http://www.baeldung.com/java-externalizable)
-- [A Practical Guide to DecimalFormat](http://www.baeldung.com/java-decimalformat)
 - [How to Detect the OS Using Java](http://www.baeldung.com/java-detect-os)
 - [ASCII Art in Java](http://www.baeldung.com/ascii-art-in-java)
 - [What is the serialVersionUID?](http://www.baeldung.com/java-serial-version-uid)
@@ -41,17 +38,10 @@
 - [Guide to Java Instrumentation](http://www.baeldung.com/java-instrumentation)
 - [Common Java Exceptions](http://www.baeldung.com/java-common-exceptions)
 - [Throw Exception in Optional in Java 8](https://www.baeldung.com/java-optional-throw-exception)
-- [Add a Character to a String at a Given Position](https://www.baeldung.com/java-add-character-to-string)
-- [Calculating the nth Root in Java](https://www.baeldung.com/java-nth-root)
-- [Convert Double to String, Removing Decimal Places](https://www.baeldung.com/java-double-to-string)
-- [ZoneOffset in Java](https://www.baeldung.com/java-zone-offset)
 - [Merging java.util.Properties Objects](https://www.baeldung.com/java-merging-properties)
-- [A Guide to SimpleDateFormat](https://www.baeldung.com/java-simple-date-format)
+- [Merging java.util.Properties Objects](https://www.baeldung.com/java-merging-properties)
-- [Changing the Order in a Sum Operation Can Produce Different Results?](https://www.baeldung.com/java-floating-point-sum-order)
 - [Java – Try with Resources](https://www.baeldung.com/java-try-with-resources)
 - [Abstract Classes in Java](https://www.baeldung.com/java-abstract-class)
 - [Guide to Character Encoding](https://www.baeldung.com/java-char-encoding)
-- [Calculate the Area of a Circle in Java](https://www.baeldung.com/java-calculate-circle-area)
-- [A Guide to the Java Math Class](https://www.baeldung.com/java-lang-math)
 - [Graphs in Java](https://www.baeldung.com/java-graphs)
 - [Console I/O in Java](http://www.baeldung.com/java-console-input-output)

core-java/src/test/java/com/baeldung/string/StringReplaceAndRemoveUnitTest.java

@@ -1,83 +0,0 @@
-package com.baeldung.string;
-
-
-import org.apache.commons.lang3.StringUtils;
-import org.junit.Test;
-
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertTrue;
-
-public class StringReplaceAndRemoveUnitTest {
-
-
-    @Test
-    public void givenTestStrings_whenReplace_thenProcessedString() {
-
-        String master = "Hello World Baeldung!";
-        String target = "Baeldung";
-        String replacement = "Java";
-        String processed = master.replace(target, replacement);
-        assertTrue(processed.contains(replacement));
-        assertFalse(processed.contains(target));
-
-    }
-
-    @Test
-    public void givenTestStrings_whenReplaceAll_thenProcessedString() {
-
-        String master2 = "Welcome to Baeldung, Hello World Baeldung";
-        String regexTarget= "(Baeldung)$";
-        String replacement = "Java";
-        String processed2 = master2.replaceAll(regexTarget, replacement);
-        assertTrue(processed2.endsWith("Java"));
-
-    }
-
-    @Test
-    public void givenTestStrings_whenStringBuilderMethods_thenProcessedString() {
-
-        String master = "Hello World Baeldung!";
-        String target = "Baeldung";
-        String replacement = "Java";
-
-        int startIndex = master.indexOf(target);
-        int stopIndex = startIndex + target.length();
-
-        StringBuilder builder = new StringBuilder(master);
-
-
-        builder.delete(startIndex, stopIndex);
-        assertFalse(builder.toString().contains(target));
-
-
-        builder.replace(startIndex, stopIndex, replacement);
-        assertTrue(builder.toString().contains(replacement));
-
-
-    }
-
-
-    @Test
-    public void givenTestStrings_whenStringUtilsMethods_thenProcessedStrings() {
-
-        String master = "Hello World Baeldung!";
-        String target = "Baeldung";
-        String replacement = "Java";
-
-        String processed = StringUtils.replace(master, target, replacement);
-        assertTrue(processed.contains(replacement));
-
-        String master2 = "Hello World Baeldung!";
-        String target2 = "baeldung";
-        String processed2 = StringUtils.replaceIgnoreCase(master2, target2, replacement);
-        assertFalse(processed2.contains(target));
-
-    }
-
-
-
-
-
-
-
-}

java-dates/README.md

@@ -26,3 +26,5 @@
 - [Format ZonedDateTime to String](https://www.baeldung.com/java-format-zoned-datetime-string)
 - [Convert Between java.time.Instant and java.sql.Timestamp](https://www.baeldung.com/java-time-instant-to-java-sql-timestamp)
 - [Convert between String and Timestamp](https://www.baeldung.com/java-string-to-timestamp)
+- [A Guide to SimpleDateFormat](https://www.baeldung.com/java-simple-date-format)
+- [ZoneOffset in Java](https://www.baeldung.com/java-zone-offset)

java-dates/src/test/java/com/baeldung/date/DateDiffUnitTest.java

@@ -8,6 +8,8 @@ import java.time.Duration;
 import java.time.LocalDate;
 import java.time.LocalDateTime;
 import java.time.Period;
+import java.time.ZoneId;
+import java.time.ZonedDateTime;
 import java.time.temporal.ChronoUnit;
 import java.util.Date;
 import java.util.Locale;

java-numbers/README.md

@@ -13,3 +13,9 @@
 - [Find All Pairs of Numbers in an Array That Add Up to a Given Sum](http://www.baeldung.com/java-algorithm-number-pairs-sum)
 - [Java – Random Long, Float, Integer and Double](http://www.baeldung.com/java-generate-random-long-float-integer-double)
 - [Using Math.sin with Degrees](https://www.baeldung.com/java-math-sin-degrees)
+- [A Practical Guide to DecimalFormat](http://www.baeldung.com/java-decimalformat)
+- [Calculating the nth Root in Java](https://www.baeldung.com/java-nth-root)
+- [Convert Double to String, Removing Decimal Places](https://www.baeldung.com/java-double-to-string)
+- [Changing the Order in a Sum Operation Can Produce Different Results?](https://www.baeldung.com/java-floating-point-sum-order)
+- [Calculate the Area of a Circle in Java](https://www.baeldung.com/java-calculate-circle-area)
+- [A Guide to the Java Math Class](https://www.baeldung.com/java-lang-math)

java-strings/README.md

@@ -45,3 +45,5 @@
 - [Remove or Replace part of a String in Java](https://www.baeldung.com/java-remove-replace-string-part)
 - [Replace a Character at a Specific Index in a String in Java](https://www.baeldung.com/java-replace-character-at-index)
 - [Convert a Comma Separated String to a List in Java](https://www.baeldung.com/java-string-with-separator-to-list)
+- [Guide to java.util.Formatter](http://www.baeldung.com/java-string-formatter)
+- [Add a Character to a String at a Given Position](https://www.baeldung.com/java-add-character-to-string)

java-strings/src/test/java/com/baeldung/string/formatter/DateToStringFormatterUnitTest.java

@@ -1,7 +1,6 @@
 package com.baeldung.string.formatter;
 
-import org.junit.BeforeClass;
+import static org.junit.Assert.assertEquals;
-import org.junit.Test;
 
 import java.text.DateFormat;
 import java.text.SimpleDateFormat;
@@ -11,9 +10,11 @@ import java.time.ZoneId;
 import java.time.format.DateTimeFormatter;
 import java.util.Calendar;
 import java.util.Date;
+import java.util.Locale;
 import java.util.TimeZone;
 
-import static org.junit.Assert.assertEquals;
+import org.junit.BeforeClass;
+import org.junit.Test;
 
 public class DateToStringFormatterUnitTest {
 
@@ -40,7 +41,7 @@ public class DateToStringFormatterUnitTest {
     @Test
     public void whenDateConvertedUsingDateFormatToString_thenCorrect() {
         String formattedDate = DateFormat
-          .getDateTimeInstance(DateFormat.MEDIUM, DateFormat.SHORT)
+          .getDateTimeInstance(DateFormat.MEDIUM, DateFormat.SHORT, Locale.US)
           .format(date);
 
         assertEquals(EXPECTED_STRING_DATE, formattedDate);