Java Socket如何实现猜数字小游戏？本篇文章小编给大家分享一下Java Socket实现猜数字小游戏代码示例，小编觉得挺不错的，现在分享给大家供大家参考，有需要的小伙伴们可以来看看。

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();

}

}