How Do i populate a 2d array with random values

I have an assignment to populate the array with random number ranging from 0-9. Then print it out in a rectangular format. I'm already having trouble trying to put random integers in the array. Please point me in the right direction

import java.util.*;
public class ThreebyFour
{
    public static void main (String[] args)
    {
     int values[][] = new int[3][4];
     for (int i = 0; i < values.length; i++) 
     {
        for (int j = 0; j < values.length; j++) 
        {
          values[i][j] = ((int)Math.random());
         System.out.println(values[i][j]);
        }
     }
 }
}