怎么用JAVA写一个四子棋，带解释和备注的最好是中文备注谢谢大佬

Question

带备注和解释哦。谢谢

Answer 1

package com.neu.test;

import java.util.Scanner;

public class ConnectFour {

    private static String[][] qipan = new String[6][7];//棋盘



    public static String NULL_DISK = "   ";//未下子的状态
    public static String RED_DISK = " R ";//未下子的状态
    public static String YELLOW_DISK = " Y ";//未下子的状态

    private static boolean finished=false;//是否结束

    private static Disk disk;


    public static void main(String[] args) {
        initGrid();

        Scanner scan = new Scanner(System.in);
        while (true){
            System.out.print("请"+disk.remark+"子落子：");
            String line = scan.nextLine();
            DropDisk(line);
            if(finished){
                break;
            }
        }
    }

    /**
     * 落子
     * @param loc
     */
    private static void DropDisk(String loc){
        //TODO 严格点应该再判断输入的数据格式是否符合标准，还有是否超出棋盘区域


        String[] locArr = loc.split(" ");
        int locX = Integer.valueOf(locArr[0]);
        int locY = Integer.valueOf(locArr[1]);

        if(qipan[locX][locY].equals(NULL_DISK)){
            qipan[locX][locY] = disk.val;
            checkWin();
            disk = disk.next();
            drawGrid();
        }else{
            System.out.println("该位置已经有棋子！！！！");
        }


    }

    /**
     * 检查游戏是否结束
     */
    public static void checkWin(){
        boolean keep = true;
        boolean hasBlank = false;
        for(int i=0;i<6;i++){
            if(!keep){
                break;
            }
            for(int j=0;j<7;j++){

                //向右4个子
                try{
                    String q1 = qipan[i][j];
                    String q2 = qipan[i][j+1];
                    String q3 = qipan[i][j+2];
                    String q4 = qipan[i][j+3];

                    if(disk.val.equals(q1)&&disk.val.equals(q2)&&disk.val.equals(q3)&&disk.val.equals(q4)){
                        keep=false;
                        break;
                    }
                }catch (Exception e){
                    //数组下标越界，不做处理
                }
                //向下4个子
                try{
                    String q1 = qipan[i][j];
                    String q2 = qipan[i+1][j];
                    String q3 = qipan[i+2][j];
                    String q4 = qipan[i+3][j];

                    if(disk.val.equals(q1)&&disk.val.equals(q2)&&disk.val.equals(q3)&&disk.val.equals(q4)){
                        keep=false;
                        break;
                    }
                }catch (Exception e){
                    //数组下标越界，不做处理
                }
                //右下
                try{
                    String q1 = qipan[i][j];
                    String q2 = qipan[i+1][j+1];
                    String q3 = qipan[i+2][j+2];
                    String q4 = qipan[i+3][j+3];

                    if(disk.val.equals(q1)&&disk.val.equals(q2)&&disk.val.equals(q3)&&disk.val.equals(q4)){
                        keep=false;
                        break;
                    }
                }catch (Exception e){
                    //数组下标越界，不做处理
                }
                //右上
                try{
                    String q1 = qipan[i][j];
                    String q2 = qipan[i+1][j-1];
                    String q3 = qipan[i+2][j-2];
                    String q4 = qipan[i+3][j-3];

                    if(disk.val.equals(q1)&&disk.val.equals(q2)&&disk.val.equals(q3)&&disk.val.equals(q4)){
                        keep=false;
                        break;
                    }
                }catch (Exception e){
                    //数组下标越界，不做处理
                }
                if(NULL_DISK.equals(qipan[i][j])){
                    //判断是否还有空位，有就可以继续下
                    hasBlank = true;
                }
            }
        }

        if(!keep){
            System.out.println(disk.remark+"子获胜，游戏结束！");
            finished = true;
        }else{
            if(!hasBlank){
                System.out.println("棋盘已满，平局，游戏结束！");
                finished = true;
            }
        }

    }
    /**
     * 将下好子的棋盘打印出来
     */
    public static void drawGrid(){
        for(int i=0;i<6;i++){
            System.out.print("|");
            for(int j=0;j<7;j++){
                System.out.print(qipan[i][j]+"|");
            }
            System.out.println();
        }
    }

    /**
     * 棋盘初始化
     */
    private static void initGrid(){
        System.out.println("初始化棋盘，请稍后...");
        for(int i=0;i<6;i++){
            for(int j=0;j<7;j++){
                qipan[i][j] = NULL_DISK;
            }
        }
        disk = new Disk();
        drawGrid();

        System.out.println("棋盘准备完毕！！！");
        System.out.println("规则：");
        System.out.println("在控制台输入要落子的坐标，两个坐标中间用一个空格隔开，如  2 3   输入完毕后回车键进入下一方落子 ");
        System.out.println("--------------------------------------");
    }
}

/**
 * 棋子
 */
class Disk{

    public String val;
    public String remark;

    public Disk(){
        this.remark = "红";
        this.val = ConnectFour.RED_DISK;
    }


    public Disk next(){
        Disk nextDisk = new Disk();
        if(this.val.equals(ConnectFour.RED_DISK)){
            nextDisk.remark = "黄";
            nextDisk.val = ConnectFour.YELLOW_DISK;
        }
        return nextDisk;
    };

}