DoubleArray.java Source code

Introduction

Here is the source code for DoubleArray.java

Source

public class DoubleArray {
    public static void main(String args[]) {
        int a1[] = { 1, 2, 3, 4, 5 };
        int a2[] = { 1, 2, 3, 4, 5, 6, 7, 8, 9 };
        System.out.println("Original size: " + a1.length);
        System.out.println("New size: " + doubleArray(a1).length);
        System.out.println("Original size: " + a2.length);
        System.out.println("New size: " + doubleArray(a2).length);
    }

    static int[] doubleArray(int original[]) {
        int length = original.length;
        int newArray[] = new int[length * 2];
        System.arraycopy(original, 0, newArray, 0, length);
        return newArray;
    }
}