Java How to Concatenate two Arrays

How to write a Java utility class to concatenate two arrays of objects in Java programming language.

Java Convert Array to ArrayList

In this Java core tutorial we learn how to convert an array to a java.util.ArrayList object in Java programing language.

Java Convert ArrayList to Array

In this Java core tutorial we learn how to convert an java.util.ArrayList object to an array in Java programming language.

Java Create New Array with Class Type and Length

In this Java core tutorial we learn how to use the java.lang.reflect.Array class to create a new array with specified class type and length in Java programming language.

Java Insert Element into an Array at Index using Apache Commons Lang

In this Java tutorial we learn how to insert an element into an array at a given index using ArrayUtils class of Apache Commons Lang library.

Java Convert Wrapper Class Array to Primitive Array using Apache Commons Lang

In this Java tutorial we learn how to convert an array of wrapper type objects into an array of primitive values using the ArrayUtils class of Apache Commons Lang library.

Java Convert Primitive Array to Wrapper Class Array using Apache Commons Lang

In this Java tutorial we learn how to convert an array of primitive values into an array of wrapper objects using the ArrayUtils of Apache Commons Lang library.

Java Convert Array to Map using Apache Commons Lang

In this Java tutorial we learn how to convert a given array into a Map object using ArrayUtils of Apache Commons Lang library.

Java Check an Array Index is valid using Apache Commons Lang

In this Java tutorial we learn how to check if a given index value is valid or not to access a given array using ArrayUtils class of Apache Commons Lang library.

Java Convert Array of Objects to Array of Strings using Apache Commons Lang

In this Java tutorial we learn how to convert an array of object values into an array of String values using the ArrayUtils class of Apache Commons Lang library.