Java测试编程题-编程知识

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() {@Overridepublic 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;}
}