这有点冗长，但是我认为这可能是最有效的方法（除非有人可以提出一种巧妙的方法来一次检查两个对角线）。
public class TicTacToe{ char[][] ticTacToe = {{'X',' ','O'}, {'O','X','O'}, {'X',' ','X'},}; private Character winner = null; public Character getWinner() { return this.winner; } public boolean isSolved() { this.checkSolved(); return this.winner != null; } private void checkSolved() { for(int i = 0; i < ticTacToe.length; i++) { Character win = checkRow(i); if(win != null || (win = checkColumn(i)) != null) { this.winner = win; return; } } //Check diagonal top left to bottom right if(this.ticTacToe[0][0] != ' ') { if(this.ticTacToe[0][0] == this.ticTacToe[1][1] && this.ticTacToe[1][1] == this.ticTacToe[2][2]) { this.winner = this.ticTacToe[0][0]; } } //Check diagonal top right to bottom left else if(this.ticTacToe[0][2] != ' ') { if(this.ticTacToe[0][2] == this.ticTacToe[1][1] && this.ticTacToe[1][1] == this.ticTacToe[2][0]) { this.winner = this.ticTacToe[0][2]; } } } private Character checkRow(int row) { if(this.ticTacToe[row][0] == ' ') { return null; } if(this.ticTacToe[row][0] == this.ticTacToe[row][1] &&this.ticTacToe[row][1] == this.ticTacToe[row][2]) { return this.ticTacToe[row][0]; } return null; } private Character checkColumn(int column) { if(this.ticTacToe[0][column] == ' ') { return null; } if(this.ticTacToe[0][column] == this.ticTacToe[1][column] &&this.ticTacToe[1][column] == this.ticTacToe[2][column]) { return this.ticTacToe[column][0]; } return null; } public static void main(String[] args) { TicTacToe ttt = new TicTacToe(); if(ttt.isSolved()) { System.out.println(ttt.getWinner()); // X } }}
