Java Program to shift array elements to the left

import java.util.Arrays;
public class Demo {
	public static void main(String[] argv) throws Exception {
		int[] arr = { 10, 20, 30, 40, 50, 60, 70, 80, 90 };
		System.out.println("Initial array...\n"+Arrays.toString(arr));
		System.arraycopy(arr, 1, arr, 0, arr.length - 1);
		System.out.println("Array after shifting to the left...");
		System.out.println(Arrays.toString(arr));
	}
}