Declare two dimensional array called Array2, Change the values of the first row by multiplying each value by two, Print all array elements using the nested for loops

import java.util.Scanner;
public class HelloWorld
{
	public static void main(String[] args) {
	    int [][]Array2 = {{22, 15, 21, 76}, {43, 36,}, {1, 5, 11}, {564}};
	    for(int columns=0;columns<Array2[0].length;columns++)
	    {
	        Array2[0][columns]=Array2[0][columns]*2;
	    }
	    
	    //print all array elements using nested loop:
	    for(int rows=0;rows<4;rows++)
	    {
	        for(int columns=0;columns<Array2[rows].length;columns++)
	        {
	        System.out.print(Array2[rows][columns]+"    ");
	            
	        }
	        System.out.println("");
	    }
	}
}