Help me complete this tic tac toe code

[thick topaz]

    import java.util.Scanner;
    import java.util.Random;
    
    public class TicTacToe
    {
        //instance variables
        
        private char[][] board;
        private Scanner scanner;
        private char CurrentPlayer;
    
        public TicTacToe()
            {
            
            //constructor
            
            char[][] board = new char[3][3];
            for (int i=0; i<board.length; i++)
            {
                for (int x=0; x<board[0].length;x++)
                {
                    System.out.print("*");
                }
                System.out.println("");
            }
            double z = Math.random();
            if (z<0.5)
            {
                CurrentPlayer='X';
            }
            else
            {
                CurrentPlayer='O';
            }
            
            }
        
    }

[surreal spear]

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[thick topaz]

Here is the assignment

Create a program that plays tic tac toe in the terminal
Use a 2D char array.

• fill the array with '*' to show an empty board

• randomly pick whether X or 0 goes first

• instance variables:
  --- 2D array of char
  --- Scanner object
  --- char to hold current player
  --- others you feel necessary

• default constructor
  --- sets the size of the game to 3 x 3
  --- fills the board with the * char to show empty space
  --- randomly picks X or O as starting player

• have a method to display the board
  --- display in grid format

• have a method for a turn of the game
  --- display current player
  --- prompt to enter row / column (1-3)
  --- read input
  --- if space entered is already taken, ask user for new input
  --- set the position in the board
  --- switch to other player for next turn

• have a method to check for winner

• have a play method that runs until there's a winner or the board is full