JAVA编程训练——Game: connect four

     Connect four is a two-player board game in which the players alternately drop colored disks into a seven-column, six-row vertically-suspended grid.

     The objective of the game is to connect four same-colored disks in a row, a column, or a diagonal before your opponent can do likewise. The program prompts two players to drop a RED or YELLOW disk alternately. Whenever a disk is dropped, the program redisplays the board on the console and determines the status of the game (win, draw, or continue).

import java.util.Date;import java.util.Scanner;import java.util.Calendar;import javax.swing.JFrame;public class TicIacIoe{char[][] block={{' ',' ',' ',' ',' ',' ',' '},{' ',' ',' ',' ',' ',' ',' '},{' ',' ',' ',' ',' ',' ',' '},{' ',' ',' ',' ',' ',' ',' '},{' ',' ',' ',' ',' ',' ',' '},{' ',' ',' ',' ',' ',' ',' '}};TicIacIoe(){}public void show(){for (int i = 0; i < 6; ++i){for (int j = 0; j < 7; ++j)System.out.print("|" + block[i][j]);System.out.println("|");}System.out.println("---------------");}public void playr(){int i=0,j=0;Scanner input = new Scanner(System.in);while(true){System.out.print("Drop a red disk at column (0-6):");    i=input.nextInt();    if(i>6)    System.out.println("Your input is wrong!");    else if(block[0][i]!=' ')    System.out.println("This column is full");    else    break;}for(j=5;j>=0;--j){if(block[j][i]==' '){block[j][i]='R';break;}}}public void playy(){int i=0,j=0;Scanner input = new Scanner(System.in);while(true){System.out.print("Drop a yellow disk at column (0-6):");    i=input.nextInt();    if(i>6)    System.out.println("Your input is wrong!");    else if(block[0][i]!=' ')    System.out.println("This column is full");    else    break;}for(j=5;j>=0;--j){if(block[j][i]==' '){block[j][i]='Y';break;}}}public boolean check(char n){for(int i=0;i<5;++i)for(int j=0;j<6;++j)if(block[i][j]==n&&block[i+1][j]==n&&block[i][j+1]==n&&block[i+1][j+1]==n)return true;return false;}public static void main(String[] args){TicIacIoe ticIacIoe =new TicIacIoe();int cnt=0;while(true){ticIacIoe.show();ticIacIoe.playr();ticIacIoe.show();if(ticIacIoe.check('R')){System.out.println("The red palyer won");break;}cnt++;ticIacIoe.playy();ticIacIoe.show();if(ticIacIoe.check('Y')){System.out.println("The yellow palyer won");break;}cnt++;if(cnt==42){System.out.println("It is a draw");break;}}}}