public static void main(String[] args) {
        SecureRandom sr = new SecureRandom();
          Scanner input = new Scanner(System.in);

          System.out.print("Enter the numbers of columns: ");
          int i = input.nextInt();

          System.out.print("\nEnter the number of rows");
          int j = input.nextInt();

        int[][]a = new int[i][j];

        System.out.print("\nEnter the number of random numbers in this array: ");
       int n = input.nextInt();

       for(int x = 0; x < a.length; x++)

           for(int y = 0; y < a.length; x++)
               a [x][y] = a[sr.nextInt(n)][sr.nextInt(n)];


       readArray(a);
    }
    public static void readArray(int[][]x){

    for(int i = 0; i < x.length; i++)
        for(int j = 0; j < x.length; j++)
            System.out.println(" "+x[i][j]);



    }

}