第八章第九题（游戏：井字游戏）（Game: tic tacit）
第八章第九题（游戏：井字游戏）（Game: tic tacit）
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***8.9（游戏：井字游戏）在井字游戏中，两个玩家使用各自的标志（一方用X则另一方就用O），轮流标记3x3的网格中的某个空格。当一个玩家在网格的水平方向、垂直方向或者对角线方向上表记录三个相同的X或三个相同的O时，游戏结束，该玩家获胜。平局（没有赢家）是指当网格中所有的空格都被填满时没有玩家获胜的情况。创建一个玩井字游戏的程序。
程序题数两个玩家交替输入X和O标记。当输入一个标记时，程序在控制台上重新显示棋盘，然后确定游戏的状态（是获胜、平局还是继续）。
***8.9（Game: tic tacit）In the tic tac toe game, two players use their own flags (one uses an X, the other uses an o) to mark a space in the 3x3 grid in turn. When a player records three identical X’s or three identical O’s in the horizontal, vertical or diagonal direction of the grid, the game ends and the player wins. A draw (no winner) is a situation in which no player wins when all the spaces in the grid are filled. Create a program to play tic tac toe.
Two players input X and O marks alternately. When a marker is entered, the program redisplays the chessboard on the console and determines the state of the game (win, draw, or continue). -
参考代码：
package chapter08; import java.util.Scanner; public class Code_09 { static char[][] ch = new char[3][3]; static int flag = 0; static Scanner cin = new Scanner(System.in); public static void main(String[] args){ for(int i = 0; i < 3; ++i) java.util.Arrays.fill(ch[i], ' '); printMap(); while(true){ goingX(); printMap(); if(flag == 1) break; going0(); printMap(); if(flag == 1) break; } } public static void going0(){ System.out.print("Enter a row(0,1 or 2) for plyaer 0:"); int x = cin.nextInt(); System.out.print("Enter a column(0,1 or 2) for plyaer 0:"); int y = cin.nextInt(); ch[x][y] = '0'; } public static void goingX(){ System.out.print("Enter a row(0,1 or 2) for plyaer X:"); int x = cin.nextInt(); System.out.print("Enter a column(0,1 or 2) for plyaer X:"); int y = cin.nextInt(); ch[x][y] = 'X'; } public static void printMap(){ System.out.printf("-------------\n"); System.out.printf("| %c | %c | %c |\n",ch[0][0],ch[0][1],ch[0][2]); System.out.printf("-------------\n"); System.out.printf("| %c | %c | %c |\n",ch[1][0],ch[1][1],ch[1][2]); System.out.printf("-------------\n"); System.out.printf("| %c | %c | %c |\n",ch[2][0],ch[2][1],ch[2][2]); System.out.printf("-------------\n"); if(check() == 1){ System.out.println("X player win"); flag = 1; } else if(check() == 2){ System.out.println("0 player win"); flag =1; } } public static int check(){ if(ch[0][0] == 'X' && ch[0][0] == ch[0][1] && ch[0][0] == ch[0][2]) return 1; if(ch[0][0] == 'X' && ch[0][0] == ch[1][0] && ch[0][0] == ch[2][0]) return 1; if(ch[0][0] == 'X' && ch[0][0] == ch[1][1] && ch[0][0] == ch[2][2]) return 1; if(ch[1][1] == 'X' && ch[0][2] == ch[1][1] && ch[0][2] == ch[2][0]) return 1; if(ch[0][0] == '0' && ch[0][0] == ch[0][1] && ch[0][0] == ch[0][2]) return 2; if(ch[0][0] == '0' && ch[0][0] == ch[1][0] && ch[0][0] == ch[2][0]) return 2; if(ch[0][0] == '0' && ch[0][0] == ch[1][1] && ch[0][0] == ch[2][2]) return 2; if(ch[1][1] == '0' && ch[0][2] == ch[1][1] && ch[0][2] == ch[2][0]) return 2; return 0; } } -
结果显示：
------------- | | | | ------------- | | | | ------------- | | | | ------------- Enter a row(0,1 or 2) for plyaer X:1 Enter a column(0,1 or 2) for plyaer X:1 ------------- | | | | ------------- | | X | | ------------- | | | | ------------- Enter a row(0,1 or 2) for plyaer 0:1 Enter a column(0,1 or 2) for plyaer 0:2 ------------- | | | | ------------- | | X | 0 | ------------- | | | | ------------- Enter a row(0,1 or 2) for plyaer X:0 Enter a column(0,1 or 2) for plyaer X:0 ------------- | X | | | ------------- | | X | 0 | ------------- | | | | ------------- Enter a row(0,1 or 2) for plyaer 0:0 Enter a column(0,1 or 2) for plyaer 0:2 ------------- | X | | 0 | ------------- | | X | 0 | ------------- | | | | ------------- Enter a row(0,1 or 2) for plyaer X:2 Enter a column(0,1 or 2) for plyaer X:2 ------------- | X | | 0 | ------------- | | X | 0 | ------------- | | | X | ------------- X player win Process finished with exit code 0