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Java测试编程题

题目1

1.创建5个线程对象
线程名设置为(Thread01,Thread02,Thread03,Thread04,Thread05)使用 代码实现5个线程有序的循环打印,效果如下:
Thread01正在打印1
Thread02正在打印2
Thread03正在打印3
Thread04正在打印4
Thread05正在打印5
Thread01正在打印6
Thread02正在打印7

package Test;

public class Test01 {
    public static void main(String[] args) {
        Object lock = new Object();
        int[] currentNum = {1}; // 记录当前应该打印的数字

        for (int i = 1; i <= 5; i++) {
            final int threadNum = i;
            new Thread(new Runnable() {
                @Override
                public void run() {
                    synchronized (lock) {
                        try {
                            for (int j = 0; j < 10; j++) {
                                // 等待轮到自己打印
                                while ((currentNum[0] - 1) % 5 != threadNum - 1) {
                                    lock.wait();
                                }
                                // 打印数字
                                System.out.println("Thread" + threadNum + "正在打印" + currentNum[0]);
                                currentNum[0]++;
                                // 唤醒下一个线程
                                lock.notifyAll();
                            }
                        } catch (InterruptedException e) {
                            e.printStackTrace();
                        }
                    }
                }
            }).start();
        }

        // 开始第一个线程的执行
        synchronized (lock) {
            lock.notifyAll();
        }
    }
}

运行截图
在这里插入图片描述

题目二

package Test;

import java.io.*;
import java.net.*;
import java.util.Scanner;

public class Server {
    public static void main(String[] args) throws IOException{
        ServerSocket serverSocket = new ServerSocket(8080);
        Socket socket = serverSocket.accept();

        Scanner scan = new Scanner(System.in);
        Gobang gobang = new Gobang();  // 创建五子棋对象

        StatusCode statusCode = new StatusCode();  // 添加状态码
        BufferedReader br = new BufferedReader(new InputStreamReader(socket.getInputStream(), "UTF8"));
        PrintStream ps = new PrintStream(socket.getOutputStream());

        while (true){
//            ps.println("服务端:" + scan.next());
            System.out.println("请服务端输入落子位置:");
            int x = scan.nextInt() - 1;
            int y = scan.nextInt() - 1;

            // 落子
            if(gobang.play(x, y, true) != statusCode.successfulLanding) {

                continue;
            }
//            ps.println("服务端端落子:(" + x + "," + y + ")");
            ps.println(x + "," + y);
            String str = br.readLine();
            System.out.println(str);
            int client_x = Integer.parseInt(str.split(",")[0]);
            int client_y = Integer.parseInt(str.split(",")[1]);

            System.out.println("客户端x:" + client_x);
            System.out.println("客户端y:" + client_y);
            if(gobang.play(client_x , client_y, false) != statusCode.successfulLanding) {

                continue;
            }

            // 打印棋盘
            for (String[] ss : gobang.gobang) {
                for (String element : ss) {
                    System.out.print(element);
                }
                System.out.println();
            }

            // 提升作业:判断输赢
            if(gobang.isWin(x, y)) {
                System.out.println("服务端胜利");
                break;
            }
        }


    }
}
package Test;
import java.io.*;
import java.net.*;
import java.util.Scanner;

public class Client {
    public static void main(String[] args) throws IOException {
        Socket socket = new Socket("127.0.0.1", 8080);

        Scanner scan = new Scanner(System.in);
        BufferedReader br = new BufferedReader(new InputStreamReader(socket.getInputStream(), "UTF8"));
        PrintStream ps = new PrintStream(socket.getOutputStream());

        Gobang gobang = new Gobang();  // 创建五子棋对象

        StatusCode statusCode = new StatusCode();  // 添加状态码

        while(true){
            System.out.println("请客户端输入落子位置:");
            int x = scan.nextInt() - 1;
            int y = scan.nextInt() - 1;

            // 落子
            if(gobang.play(x, y, false) != statusCode.successfulLanding) {
                continue;
            }

//            ps.println("客户端落子:(" + x + "," + y + ")");
            ps.println(x + "," + y);
            String str = br.readLine();
            System.out.println(str);
            int server_x = Integer.parseInt(str.split(",")[0]);
            int server_y = Integer.parseInt(str.split(",")[1]);
            System.out.println("服务端x:" + server_x);
            System.out.println("服务端y:" + server_y);

            if(gobang.play(server_x, server_y, true) != statusCode.successfulLanding) {
                continue;
            }


            // 打印棋盘
            for (String[] ss : gobang.gobang) {
                for (String element : ss) {
                    System.out.print(element);
                }
                System.out.println();
            }

            if(gobang.isWin(x, y)) {
                System.out.println("客户端胜利");
                break;
            }

        }
    }
}

package Test;

public class Gobang {
    /**
     * 五子棋类
     * */
    // 棋盘长度
    int len = 20;
    // 棋盘容器
    String[][] gobang = new String[len][len];

    // 棋盘的符号
    String add = "┼";// ┼
    String black = "●";
    String white = "○";
    String[] indexs = { "⒈", "⒉", "⒊", "⒋", "⒌", "⒍", "⒎", "⒏", "⒐", "⒑", "⒒", "⒓", "⒔", "⒕", "⒖", "⒗", "⒘", "⒙",
            "⒚", "⒛" };

    public Gobang(){
        init();
        printGoBang();
    }

    // 初始化棋盘
    private void init() {
        for (int i = 0; i < gobang.length; i++) {
            for (int j = 0; j < gobang[i].length; j++) {
                if (j==len-1) {  // 每行的最后一列  设置 xx行
                    gobang[i][j] = indexs[i] + "行";
                }else if(i==len-1){ // 每列的最后一行 设置 xx 列
                    gobang[i][j] = indexs[j];
                }else {
                    gobang[i][j] = add;
                }
            }
        }

    }

    // 打印棋盘
    private void printGoBang() {
        for (int i = 0; i < gobang.length; i++) {
            for (int j = 0; j < gobang[i].length; j++) {
                System.out.print(gobang[i][j]);
            }
            System.out.println();
        }
    }


    // 判断坐标是否在棋盘内
    private boolean isIndexOutOfGoBang(int x, int y) {
        if(x<0 || x>len-2 || y<0 || y>len-2){
            System.out.println("落子失败 - 坐标超出棋盘范围");
            return true;
        }
        return false;
    }

    // 判断坐标是否有棋子
    private boolean isPiece(int x, int y) {
        if(!gobang[x][y].equals(add)){
            return true;
        }
        return false;
    }

    // 落子
    public int play(int x, int y, boolean bool) {
        StatusCode statusCode = new StatusCode();
        // 判断坐标是否超出棋盘范围
        if (isIndexOutOfGoBang(x, y)) {
            System.out.println("落子失败 - 坐标超出棋盘范围");
            return statusCode.indexOutOfRange;
        }

        // 判断坐标上是否有棋子
        if (isPiece(x, y)) {
            System.out.println("落子失败 - 坐标上已有棋子");
            return statusCode.existingPieces;
        }

        gobang[x][y] = (bool) ? black : white;
        return statusCode.successfulLanding;
    }

    public boolean isWin(int x, int y) {
        if(
                upAndDown(x, y)
                        || leftAndRight(x, y)
                        || leftUpAndRightDown(x, y)
                        || leftDownAndRightUp(x, y)
        ) {
            return true;
        }
        return false;
    }

    // 落子之后, 上下判断输赢
    private boolean upAndDown(int x, int y) {
        int count = 1;
        for (int i = x-1;i>=0;i--) {
            if (this.gobang[x][y]==this.gobang[i][y]) {
                count++;
            }else {
                break;
            }
        }

        for(int i=x+1;i<=this.len;i++) {
            if(this.gobang[x][y]==this.gobang[i][y]) {
                count++;
            }else {
                break;
            }
        }
        return (count>=5)?true:false;
    }

    // 落子之后, 左右判断输赢
    private boolean leftAndRight(int x, int y) {
        int count = 1;
        for (int i=y-1;i>=0;i--) {
            if(this.gobang[x][y]==this.gobang[x][i]) {
                count++;
            }else {
                break;
            }
        }

        for (int i=y+1;i<=this.len;i++) {
            if(this.gobang[x][y]==this.gobang[x][i]) {
                count++;
            }else {
                break;
            }
        }
        return (count>=5)?true:false;
    }

    // 落子之后, 左上右下判断输赢
    private boolean leftUpAndRightDown(int x, int y) {
        int count = 1;
        for (int i=y-1, j=x-1;i>=0&&j>=0;i--, j--) {
            if(this.gobang[x][y]==this.gobang[j][i]) {
                count++;
            }else {
                break;
            }
        }

        for (int i=y+1, j=x+1;i<=this.len&&j<=this.len;i++,j++) {
            if(this.gobang[x][y]==this.gobang[j][i]) {
                count++;
            }else {
                break;
            }
        }
        return (count>=5)?true:false;
    }

    // 落子之后, 左下右上判断输赢
    private boolean leftDownAndRightUp(int x, int y) {
        int count = 1;
        for (int i=y-1, j=x+1;i>=0&&j<=this.len;i--, j++) {
            if(this.gobang[x][y]==this.gobang[j][i]) {
                count++;
            }else {
                break;
            }
        }

        for (int i=y+1, j=x-1;i<=this.len&&j>=0;i++,j--) {
            if(this.gobang[x][y]==this.gobang[j][i]) {
                count++;
            }else {
                break;
            }
        }
        return (count>=5)?true:false;
    }
}
package Test;

public class StatusCode {
    /**
     * 五子棋状态码
     * */
    int indexOutOfRange = -1;  // 超出棋盘范围
    int existingPieces = -2;// 该位置已有棋子
    int successfulLanding = 1;  // 落子成功

    public int getIndexOutOfRange() {
        return this.indexOutOfRange;
    }

    public int getExistingPieces() {
        return this.existingPieces;
    }

    public int getSuccessfulLanding() {
        return this.successfulLanding;
    }
}

运行截图
在这里插入图片描述

存在bug

  1. 使用单聊模式为通信方式, 如果一方能正常落子, 一方错误输入已经落过子的坐标, 正常落子方会比错误落子方多落一子.
  2. 一方胜利之后, 另外一方的窗口不能结束.
  3. 双方第一次落子如果落在一处, 没有相应的处理逻辑.
  4. 落子双方没有先后顺序, 正常先后顺序应该为i黑先白后

原文地址:https://blog.csdn.net/qq_45830942/article/details/138015189

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