本文实例为大家分享了Java Socket实现猜数字游戏的具体代码，供大家参考，具体内容如下

运行截图

Server

Client

完整代码

Server

import java.io.IOException;import java.io.PrintWriter;import java.net.ServerSocket;import java.net.Socket;import java.util.Random;import java.util.Scanner;public class ServerDemo { private int flag; public void server() throws IOException { //创建一个服务器 System.out.println("服务端启动，等待客户端连接。。。"); PrintWriter out = null; Scanner getClient = null; ServerSocket server = null; Socket client = null; this.setFlag(); try { server = new ServerSocket(6666); //创建一个接收连接客户端的对象 client = server.accept(); System.out.println(client.getInetAddress() + " 已成功连接到此台服务器上。"); //字符输出流 out = new PrintWriter(client.getOutputStream()); //向客户端发送数据 out.println("欢迎来到猜数字小游戏（1-100）！！！"); out.flush();//将缓冲流中的数据全部输出 getClient = new Scanner(client.getInputStream()); //接收客户端发送的数据 //阻塞等待客户端发送消息过来 while (getClient.hasNextLine()) { String returnMsg = null; String tmp = getClient.nextLine(); if ("e".equals(tmp)) { break; } else if ("c".equals(tmp)) { returnMsg = "欢迎来到新一轮的猜数字小游戏（1-100）！！！"; this.setFlag(); } else { int clientInput = Integer.parseInt(tmp); if (clientInput > flag) { returnMsg = "你输入的数字大了！！！"; } else if (clientInput < flag) { returnMsg = "你输入的数字小了！！！"; } else { returnMsg = "恭喜你，猜中了！！！继续（输入c）,退出（输入e）"; } } out.println(returnMsg); //向客户端发送数据 out.flush(); } } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } finally { out.close(); getClient.close(); server.close(); } } // 生成随机数字 public void setFlag() { Random r = new Random(); flag = r.nextInt(100); System.out.println("猜数字小游戏答案：flag = " + flag); } public static void main(String[] args) throws IOException { new ServerDemo().server(); }}

Client

import java.io.IOException;import java.io.PrintWriter;import java.net.Socket;import java.util.Scanner;public class ClientDemo { public void client() throws IOException { System.out.println("正在向服务器请求连接。。。"); Socket client = null; Scanner getKey = null; Scanner getServer = null; PrintWriter out = null; try { client = new Socket("127.0.0.1", 6666); getServer = new Scanner(client.getInputStream()); System.out.println(getServer.nextLine()); out = new PrintWriter(client.getOutputStream()); System.out.print("请输入数字："); //先读取键盘录入方可向服务端发送消息 getKey = new Scanner(System.in); while (getKey.hasNextLine()) { //写到服务端的的控制台 out.println(getKey.nextLine()); out.flush(); try { System.out.println("提示消息：" + getServer.nextLine()); System.out.print("请输入数字："); } catch (Exception e) { System.out.print("游戏结束！！！"); break; } //阻塞等待接收服务端的消息 } } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } finally { getKey.close(); getServer.close(); out.close(); client.close(); } } public static void main(String[] args) throws IOException { new ClientDemo().client(); }}

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