Increasing the Size of an Array

public class ArraySize
{
    public static void main(String args[])
    {
        changeArraySize();
    }
    
    private static void changeArraySize()
    {
        int[] intArray = new int[5];

        System.out.println("Before change: size(): " + intArray.length);
        
        // Increasing the size by 2 times
        //Signature of Arrays.copyOf (original array, new length)
        intArray = java.util.Arrays.copyOf(intArray, intArray.length * 2);    
        System.out.println("After change: size(): " + intArray.length);
    }
}