java help

Question

public class Main {
public static int[][] createMatrix(int x,int y){
int [][] data = new int [x][y];
return data;
}
public static void main(String[] args) {
System.out.println(createMatrix(5,7));
Help me to change the code that to create matrix 5x7;3x1;4x9

Answer 1

System.out.println (createMatrix (3,1));

You only have to change x and y when you call this method. But I'm not sure if you have to fill your matrix.