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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;
}
}
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