Randomly Filling a TicTacToe board in Java

Problem:

Write a program that randomly fills in 0s and 1s into a TicTacToe board, prints the board, and finds the rows, columns, or diagonals with all 0s or 1s. Use a two-dimensional array to represent a TicTacToe board.

Output:

101
111
110
All 1s on column 0
All 1s on row 1
All 1s on diagonal 1

Solution:

public class TicTacToe2
{
  public static int[][] randomFill()
  {
    int[][] tictactoe = new int[3][3];
    for (int i =0;i<tictactoe.length;i++)
    {
      for (int j =0; j< tictactoe[i].length;j++)
      {
        tictactoe[i][j] = (int) (Math.random()*2);
        System.out.print(tictactoe[i][j]);
      }
      System.out.println();
    }
    return tictactoe;
  }
  
  public static void checkUp(int[][] tictactoe)
  {
    for (int i =0;i<3;i++)
    {
        if ( tictactoe[i][0] == tictactoe[i][1] && tictactoe[i][1] == tictactoe[i][2])
          System.out.println("All " + tictactoe[i][0] + "s on row " + i);
        
        if ( tictactoe[0][i] == tictactoe[1][i] && tictactoe[1][i] == tictactoe[2][i])
          System.out.println("All " + tictactoe[0][i] + "s on column " + i);
        
    }
    if ( tictactoe[0][0] == tictactoe[1][1] && tictactoe[1][1] == tictactoe[2][2])
      System.out.println("All " + tictactoe[0][0] + "s on diagonal " + 0);
    
    if ( tictactoe[1][2] == tictactoe[1][1] && tictactoe[1][1] == tictactoe[2][1])
      System.out.println("All " + tictactoe[0][0] + "s on diagonal " + 1);
  }
  public static void main (String[] args)
  {
    int[][] tictactoe = randomFill();
    checkUp(tictactoe);
  }
}