Complete the rotate method. It shifts all the values in the array one index to the left and the number that was at index zero is moved to the end of the array. For example, if the array is initially { 1, 2, 3 } then after the method the array will be { 2, 3, 1 }.

If the array length is less than 2, the method does not change the array.

public class Main { public static void main(String[] args) { int [] a { 3, 6, 2, 9 }; rotate( a ); for ( int num: a ) System.out.print( num + " "); // 6 2 9 3 System.out.println(); = int [] b = { 11, 55, 2, -12, -2000, 91 }; rotate( b ); for ( int num : b) System.out.print( num + "); // 55 2 -12 -2000 91 11 } public static void rotate( int [] a ) { }