我必须为正在做的作业创建一个tick tac toe程序。
我遇到了一个问题，即如果已经选择了阵列中的位置，则程序将跳过玩家的回合。
我想知道是否有人会知道如何帮助我解决此问题...
例如：我输入数组[1] [1]，第二位玩家也选择了该位置。该程序不会更新棋盘，而是继续寻找下一个玩家，因此跳过了该回合。
我将在下面粘贴我的代码，如果有人有任何疑问，请随时提出。
public class TicTacToe {
public static char[][] board = new char[3][3];
static Scanner scan = new Scanner(System.in);
public static String keepPlaying;
public static char yesOrNo;
public static boolean playing;
public static int row, col;
public static User human1 = new User();
public static User human2 = new User();
public static void main(String[] args) {
human1.getUser1Name();
human2.getUser2Name();
System.out.println("\nPlayer 1: " + human1.human1Name() + ": X's");
System.out.println("Player 2: " + human2.human2Name() + ": O's\n");
initializeBoard();
displayBoard();
playing = true;
while (playing == true)
{
System.out.println("\n" + human1.human1Name() + " it's your turn.");
human1.getChoice();
human1.convert();
if (human1.returnRow() == 0 && human1.returnCol() == 0/* && board[0][0] == ' '*/)
{
board[0][0] = 'X';
displayBoard();
}
else if (human1.returnRow() == 0 && human1.returnCol() == 1 && board[1][0] == ' ')
{
board[1][0] = 'X';
displayBoard();
}
else if (human1.returnRow() == 0 && human1.returnCol() == 2 && board[2][0] == ' ')
{
board[2][0] = 'X';
displayBoard();
}
else if (human1.returnRow() == 1 && human1.returnCol() == 0 && board[0][1] == ' ')
{
board[0][1] = 'X';
displayBoard();
}
else if (human1.returnRow() == 1 && human1.returnCol() == 1 && board[1][1] == ' ')
{
board[1][1] = 'X';
displayBoard();
}
else if (human1.returnRow() == 1 && human1.returnCol() == 2 && board[2][1] == ' ')
{
board[2][1] = 'X';
displayBoard();
}
else if (human1.returnRow() == 2 && human1.returnCol() == 0 && board[0][2] == ' ')
{
board[0][2] = 'X';
displayBoard();
}
else if (human1.returnRow() == 2 && human1.returnCol() == 1 && board[1][2] == ' ')
{
board[1][2] = 'X';
displayBoard();
}
else if (human1.returnRow() == 2 && human1.returnCol() == 2 && board[2][2] == ' ')
{
board[2][2] = 'X';
displayBoard();
}
if (checkForWinner() == true)
{
System.out.println("\n" + human1.human1Name() + " has won the game!!!");
playAgain();
if (playing == false)
{
break;
}
}
if (board[0][0] != ' ' && board[0][1] != ' ' && board[0][2] != ' ' && board[1][0] != ' ' && board[1][1] != ' '
&& board[1][2] != ' ' && board[2][0] != ' ' && board[2][1] != ' ' && board[2][2] != ' ')
{
System.out.println("It's a draw!!!");
playAgain();
if (playing == false)
{
break;
}
}
System.out.println("\n" + human2.human2Name() + " it's your turn.");
human2.getChoice();
human2.convert();
if (human2.returnRow() == 0 && human2.returnCol() == 0 /*&& board[0][0] == ' '*/)
{
board[0][0] = 'O';
displayBoard();
}
else if (human2.returnRow() == 0 && human2.returnCol() == 1 && board[1][0] == ' ')
{
board[1][0] = 'O';
displayBoard();
}
else if (human2.returnRow() == 0 && human2.returnCol() == 2 && board[2][0] == ' ')
{
board[2][0] = 'O';
displayBoard();
}
else if (human2.returnRow() == 1 && human2.returnCol() == 0 && board[0][1] == ' ')
{
board[0][1] = 'O';
displayBoard();
}
else if (human2.returnRow() == 1 && human2.returnCol() == 1 && board[1][1] == ' ')
{
board[1][1] = 'O';
displayBoard();
}
else if (human2.returnRow() == 1 && human2.returnCol() == 2 && board[2][1] == ' ')
{
board[2][1] = 'O';
displayBoard();
}
else if (human2.returnRow() == 2 && human2.returnCol() == 0 && board[0][2] == ' ')
{
board[0][2] = 'O';
displayBoard();
}
else if (human2.returnRow() == 2 && human2.returnCol() == 1 && board[1][2] == ' ')
{
board[1][2] = 'O';
displayBoard();
}
else if (human2.returnRow() == 2 && human2.returnCol() == 2 && board[2][2] == ' ')
{
board[2][2] = 'O';
displayBoard();
}
if (checkForWinner() == true)
{
System.out.println("\n" + human2.human2Name() + " has won the game!!!");
playAgain();
}
if (board[0][0] != ' ' && board[0][1] != ' ' && board[0][2] != ' ' && board[1][0] != ' ' && board[1][1] != ' '
&& board[1][2] != ' ' && board[2][0] != ' ' && board[2][1] != ' ' && board[2][2] != ' ')
{
System.out.println("It's a draw!!!");
playAgain();
}
}
}
public TicTacToe() {
board = new char[3][3];
}
public static void initializeBoard() {
for (int row = 0; row < 3; row++)
{
for (int col = 0; col < 3; col++)
{
board[row][col] = ' ';
}
}
}
public static void displayBoard() {
System.out.println(" A B C");
System.out.println(" -------------");
for (int row = 0; row < 3; row++)
{
System.out.print((row + 1) + " | ");
for (int col = 0; col < 3; col++)
{
System.out.print(board[row][col] + " | ");
}
System.out.println();
System.out.println(" -------------");
}
}
public static boolean checkForWinner() {
if (board[0][0] == board[0][1] && board[0][1] == board[0][2] && board[0][1] != ' ')
{
return true;
}
if (board[1][0] == board[1][1] && board[1][1] == board[1][2] && board[1][1] != ' ')
{
return true;
}
if (board[2][0] == board[2][1] && board[2][1] == board[2][2] && board[2][1] != ' ')
{
return true;
}
if (board[0][0] == board[1][0] && board[1][0] == board[2][0] && board[1][0] != ' ')
{
return true;
}
if (board[0][1] == board[1][1] && board[1][1] == board[2][1] && board[1][1] != ' ')
{
return true;
}
if (board[0][2] == board[1][2] && board[1][2] == board[2][2] && board[1][2] != ' ')
{
return true;
}
if (board[0][0] == board[1][1] && board [1][1] == board[2][2] && board[1][1] != ' ')
{
return true;
}
if (board[0][2] == board [1][1] && board[1][1] == board[2][0] && board[1][1] != ' ')
{
return true;
}
return false;
}
public static boolean playAgain() {
System.out.println("\nWould you like to play again?");
keepPlaying = scan.nextLine();
yesOrNo = keepPlaying.toUpperCase().charAt(0);
if (yesOrNo == 'N')
{
System.out.println("\nThanks for playing!");
playing = false;
initializeBoard();
return playing;
}
else if (yesOrNo == 'Y')
{
initializeBoard();
displayBoard();
return true;
}
return playing;
}
public static boolean notValid() {
if (human1.returnRow() > 2 || human1.returnRow() < 0 || human1.returnCol() > 2 || human1.returnCol() < 0 || human2.returnRow() > 2
|| human2.returnRow() < 0 || human2.returnCol() > 2 || human2.returnCol() < 0 || !isEmpty())
{
System.out.println("Invalid");
return true;
}
else
{
return false;
}
}
public static boolean isEmpty() {
if (board[0][0] == ' ' && board[0][1] == ' ' && board[0][2] == ' ' && board[1][0] == ' ' && board[1][1] == ' '
&& board[1][2] == ' ' && board[2][0] == ' ' && board[2][1] == ' ' && board[2][2] == ' ')
{
return true;
}
else
{
System.out.println("That position is taken.\n");
return false;
}
}
}
答案 0 :(得分：2)
您的编程正在转弯，因为它完全按照您的要求进行。
else if (human2.returnRow() == 1 && human2.returnCol() == 1 && board[1][1]==' ')
{
board[1][1] = 'O';
displayBoard();
}
如果拾取的点是[1] [1]，并且未被占用，则进行更新。如果该位置已被占用，则if语句中的代码将不会执行，并且程序将继续。
可以在不过度破坏现有代码的情况下检查和核实现场的另一种方法
boolean turnOver = false;
while(!turnOver){
if(board[human2.returnRow()][human2.returnCol()] != ' '){
System.out.println("That space is taken")
}else{
if(human2.returnRow() == 1 && human2.returnCol() == 1){
board[1][1] = 'O';
displayBoard();
}
//other cases
turnOver = true;
}
此外，您的代码非常多余。您可以通过一个方法调用而不是10个if语句来实现更新木板并检查该职位是否得到填补的目标。
public void setPosition(int row, int col, int player){
if(board[row][col] != ' '){
System.out.println("That space is taken")
return;
}
if(player == 1){
board[row][col] = 'X';
}else{
board[row][col] = 'O';
}
}