Chapter 7, Problem 8PP

Program Plan Intro

Tic-tac-toe

Program plan:

• In a file “PlayTicTacToe.java”, create a class “PlayTicTacToe”,
  • Define the method “wonDiagonal” that checks if player has won tic-tac-toe along diagonal lines.
  • Define the method “wonStraightLines()” that checks if player has won tic-tac-toe along straight lines.
  • Define the Boolean method “win()” that check if player has own.
  • Define the Boolean method “drawBoard” that draws gameboard, which contains player “1” as “X”, and player “2” as “O”.
• In a file “PlayTicTacToeDem.java”, import necessary packages and create a class “PlayTicTacToeDem”,
  • Define the method “main()”,
    • Create “Scanner”object.
    • Declare 2D array.
    • Initialize the player “2”.
    • Create the object for “PlayTicTacToe”.
    • Call the method “drawBoard()”.
    • Execute loop,
      • Check whether the player is “1”,
        • If it is true, set the player to “2”.
      • Otherwise, set the player to “1”.
      • Prompt the player to enter the row and column.
      • Get the row and column from the current player.
      • Assign the player to board’s position.
      • Call the method “drawBoard()”.
    • Print the message.