Your job on this Lab is to complete that detects when a player has won. a tic-ta

Question

Your job on this Lab is to complete that detects when a player has won. a tic-tac-toe program by adding in a boolean expression Download TicTacToe.java from the Sketchpad folder in the Labs folder at the course web site and put it in a folder along with Basic.java and Sketchpad. java (you probably already have those files downloaded from doing Lab 2.13). Run TicTacToe and observe how it works (two human players should take turns pressing the mouse in one of the nine squares on the board to make their move). Currently the check for a win only detects when one player has marked all three squares in the first row. Play the game several times and make X and O each win. Now, in the TicTacToe class, toward the bottom of the mousePressed method, replace the expression that says "the row 1, column 1 mark is not a space and row 1, column 1 e row 1 column quals 2 and row 1, column 2 equals row 1, column 3" by a boolean expression so that the program will correctly notice every possible way of winning. Note that the nine instance variables of hold the symbol currently written at the corresponding place on the game board, as shown here: b11 b12 b13 b21 b22 b23 b31 b32 b33

Explanation / Answer

As I didn't get TicTacToe.java file you are referencing in this question, I'm answering by providing a how a regular TicTacToe.java program looks like.

package com.javadb.tictactoe;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class TicTacToe {

private char[][] board = new char[3][3];
private String player1;
private String player2;
private int currentPlayer;
private char marker1;
private char marker2;
private int plays;
private BufferedReader reader =
new BufferedReader(new InputStreamReader(System.in));

protected void init() {
int counter = 0;
for (int i = 0; i < 3; i++) {
for (int i1 = 0; i1 < 3; i1++) {
board[i][i1] = Character.forDigit(++counter, 10);
}
}
currentPlayer = 1;
plays = 0;
}

protected void switchPlayers() {
if (getCurrentPlayer() == 1) {
setCurrentPlayer(2);
} else {
setCurrentPlayer(1);
}
setPlays(getPlays() + 1);
}

protected boolean placeMarker(int play) {
for (int i = 0; i < 3; i++) {
for (int i1 = 0; i1 < 3; i1++) {
if (board[i][i1] == Character.forDigit(play, 10)) {
board[i][i1] = (getCurrentPlayer() == 1) ? getMarker1() : getMarker2();
return true;
}
}
}
return false;
}

protected boolean winner() {
//Checking rows
char current = ' ';
for (int i = 0; i < 3; i++) {
int i1 = 0;
for (i1 = 0; i1 < 3; i1++) {
if (!Character.isLetter(board[i][i1])) {
break;
}
if (i1 == 0) {
current = board[i][i1];
} else if (current != board[i][i1]) {
break;
}
if (i1 == 2) {
//Found winner
return true;
}
}
}
//Checking columns
for (int i = 0; i < 3; i++) {
current = ' ';
int i1 = 0;
for (i1 = 0; i1 < 3; i1++) {
if (!Character.isLetter(board[i1][i])) {
break;
}
if (i1 == 0) {
current = board[i1][i];
} else if (current != board[i1][i]) {
break;
}
if (i1 == 2) {
//Found winner
return true;
}
}
}
//Checking diagonals
current = board[0][0];
if (Character.isLetter(current) && board[1][1] == current && board[2][2] == current) {
return true;
}
current = board[2][0];
if (Character.isLetter(current) && board[1][1] == current && board[0][2] == current) {
return true;
}
return false;
}

protected String getRules() {
StringBuilder builder = new StringBuilder();
builder.append("Players take turns marking a square. Only squares ");
builder.append("not already marked can be picked. Once a player has ");
builder.append("marked three squares in a row, the player wins! If all squares ");
builder.append("are marked and no three squares are the same, a tie game is declared. ");
builder.append("Have Fun! ");
return builder.toString();
}

protected String getPrompt() {
String prompt = "";
try {
prompt = reader.readLine();
} catch (IOException ex) {
ex.printStackTrace();
}
return prompt;
}

protected String drawBoard() {
StringBuilder builder = new StringBuilder("Game board: ");
for (int i = 0; i < 3; i++) {
for (int i1 = 0; i1 < 3; i1++) {
builder.append("[" + board[i][i1] + "]");
}
builder.append(" ");
}
return builder.toString();
}

public int getCurrentPlayer() {
return currentPlayer;
}

public void setCurrentPlayer(int currentPlayer) {
this.currentPlayer = currentPlayer;
}

public char getMarker1() {
return marker1;
}

public void setMarker1(char marker1) {
this.marker1 = marker1;
}

public char getMarker2() {
return marker2;
}

public void setMarker2(char marker2) {
this.marker2 = marker2;
}

public int getPlays() {
return plays;
}

public void setPlays(int plays) {
this.plays = plays;
}

public String getPlayer1() {
return player1;
}

public void setPlayer1(String player1) {
this.player1 = player1;
}

public String getPlayer2() {
return player2;
}

public void setPlayer2(String player2) {
this.player2 = player2;
}
}


Hope it helps you. Thanks

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