Merge pull request #5649 from rozagerardo/geroza/BAEL-9549_reduce-articles-in-core-java

[BAEL-9549] reduce core-java module migrating code to core-java-lang and core-java-arrays

core-java-arrays/.gitignore

@@ -0,0 +1,25 @@
+*.class
+
+0.*
+
+#folders#
+/target
+/neoDb*
+/data
+/src/main/webapp/WEB-INF/classes
+*/META-INF/*
+.resourceCache
+
+# Packaged files #
+*.jar
+*.war
+*.ear
+
+# Files generated by integration tests
+backup-pom.xml
+/bin/
+/temp
+
+#IntelliJ specific
+.idea/
+*.iml

core-java-arrays/README.md

@@ -0,0 +1,15 @@
+=========
+
+## Core Java Arrays Cookbooks and Examples
+
+### Relevant Articles: 
+- [How to Copy an Array in Java](http://www.baeldung.com/java-array-copy)
+- [Check if a Java Array Contains a Value](http://www.baeldung.com/java-array-contains-value)
+- [Initializing Arrays in Java](http://www.baeldung.com/java-initialize-array)
+- [Guide to the java.util.Arrays Class](http://www.baeldung.com/java-util-arrays)
+- [Jagged Arrays In Java](http://www.baeldung.com/java-jagged-arrays)
+- [Find Sum and Average in a Java Array](http://www.baeldung.com/java-array-sum-average)
+- [Arrays in Java: A Reference Guide](https://www.baeldung.com/java-arrays-guide)
+- [How to Invert an Array in Java](http://www.baeldung.com/java-invert-array)
+- [Array Operations in Java](http://www.baeldung.com/java-common-array-operations)
+

core-java-arrays/src/main/java/com/baeldung/array/ArrayInitializer.java

@@ -2,7 +2,7 @@ package com.baeldung.array;
 
 import java.util.Arrays;
 
-import org.apache.commons.lang.ArrayUtils;
+import org.apache.commons.lang3.ArrayUtils;
 
 public class ArrayInitializer {
 

core-java-lang/.gitignore

@@ -0,0 +1,25 @@
+*.class
+
+0.*
+
+#folders#
+/target
+/neoDb*
+/data
+/src/main/webapp/WEB-INF/classes
+*/META-INF/*
+.resourceCache
+
+# Packaged files #
+*.jar
+*.war
+*.ear
+
+# Files generated by integration tests
+backup-pom.xml
+/bin/
+/temp
+
+#IntelliJ specific
+.idea/
+*.iml

core-java-lang/README.md

@@ -0,0 +1,59 @@
+=========
+
+## Core Java Lang Cookbooks and Examples
+
+### Relevant Articles: 
+- [Guide to Java Reflection](http://www.baeldung.com/java-reflection)
+- [Introduction to Java Generics](http://www.baeldung.com/java-generics)
+- [Generate equals() and hashCode() with Eclipse](http://www.baeldung.com/java-eclipse-equals-and-hashcode)
+- [Chained Exceptions in Java](http://www.baeldung.com/java-chained-exceptions)
+- [Java Primitive Conversions](http://www.baeldung.com/java-primitive-conversions)
+- [Call Methods at Runtime Using Java Reflection](http://www.baeldung.com/java-method-reflection)
+- [Iterating Over Enum Values in Java](http://www.baeldung.com/java-enum-iteration)
+- [Changing Annotation Parameters At Runtime](http://www.baeldung.com/java-reflection-change-annotation-params)
+- [Dynamic Proxies in Java](http://www.baeldung.com/java-dynamic-proxies)
+- [Java Double Brace Initialization](http://www.baeldung.com/java-double-brace-initialization)
+- [Guide to hashCode() in Java](http://www.baeldung.com/java-hashcode)
+- [Guide to the Diamond Operator in Java](http://www.baeldung.com/java-diamond-operator)
+- [A Guide to the Static Keyword in Java](http://www.baeldung.com/java-static)
+- [Quick Example - Comparator vs Comparable in Java](http://www.baeldung.com/java-comparator-comparable)
+- [The Java continue and break Keywords](http://www.baeldung.com/java-continue-and-break)
+- [A Guide to Java Initialization](http://www.baeldung.com/java-initialization)
+- [Nested Classes in Java](http://www.baeldung.com/java-nested-classes)
+- [A Guide to Java Loops](http://www.baeldung.com/java-loops)
+- [Varargs in Java](http://www.baeldung.com/java-varargs)
+- [A Guide to Inner Interfaces in Java](http://www.baeldung.com/java-inner-interfaces)
+- [Polymorphism in Java](http://www.baeldung.com/java-polymorphism)
+- [Recursion In Java](http://www.baeldung.com/java-recursion)
+- [A Guide to the finalize Method in Java](http://www.baeldung.com/java-finalize)
+- [Method Overloading and Overriding in Java](http://www.baeldung.com/java-method-overload-override)
+- [How to Make a Deep Copy of an Object in Java](http://www.baeldung.com/java-deep-copy)
+- [Guide to Inheritance in Java](http://www.baeldung.com/java-inheritance)
+- [Object Type Casting in Java](http://www.baeldung.com/java-type-casting)
+- [The "final" Keyword in Java](http://www.baeldung.com/java-final)
+- [A Guide to Java Enums](http://www.baeldung.com/a-guide-to-java-enums)
+- [Infinite Loops in Java](http://www.baeldung.com/infinite-loops-java)
+- [Quick Guide to java.lang.System](http://www.baeldung.com/java-lang-system)
+- [Type Erasure in Java Explained](http://www.baeldung.com/java-type-erasure)
+- [Using Java Assertions](http://www.baeldung.com/java-assert)
+- [Pass-By-Value as a Parameter Passing Mechanism in Java](http://www.baeldung.com/java-pass-by-value-or-pass-by-reference)
+- [Variable and Method Hiding in Java](http://www.baeldung.com/java-variable-method-hiding)
+- [Access Modifiers in Java](http://www.baeldung.com/java-access-modifiers)
+- [Guide to the super Java Keyword](http://www.baeldung.com/java-super)
+- [Guide to the this Java Keyword](http://www.baeldung.com/java-this)
+- [Immutable Objects in Java](http://www.baeldung.com/java-immutable-object)
+- [ClassNotFoundException vs NoClassDefFoundError](http://www.baeldung.com/java-classnotfoundexception-and-noclassdeffounderror)
+- [The StackOverflowError in Java](http://www.baeldung.com/java-stack-overflow-error)
+- [Create a Custom Exception in Java](http://www.baeldung.com/java-new-custom-exception)
+- [Exception Handling in Java](http://www.baeldung.com/java-exceptions)
+- [Differences Between Final, Finally and Finalize in Java](https://www.baeldung.com/java-final-finally-finalize)
+- [Static and Dynamic Binding in Java](https://www.baeldung.com/java-static-dynamic-binding)
+- [Difference Between Throw and Throws in Java](https://www.baeldung.com/java-throw-throws)
+- [Synthetic Constructs in Java](https://www.baeldung.com/java-synthetic)
+- [Java Switch Statement](https://www.baeldung.com/java-switch)
+- [The Modulo Operator in Java](https://www.baeldung.com/modulo-java)
+- [Ternary Operator In Java](https://www.baeldung.com/java-ternary-operator)
+- [How to Separate Double into Integer and Decimal Parts](https://www.baeldung.com/java-separate-double-into-integer-decimal-parts)
+- [“Sneaky Throws” in Java](http://www.baeldung.com/java-sneaky-throws)
+- [Inheritance and Composition (Is-a vs Has-a relationship) in Java](http://www.baeldung.com/java-inheritance-composition)
+