本文實例為大家分享了Java Socket實現(xiàn)猜數(shù)字游戲的具體代碼，供大家參考，具體內(nèi)容如下

運行截圖

Server

Client

完整代碼

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 { //創(chuàng)建一個服務(wù)器 System.out.println('服務(wù)端啟動，等待客戶端連接。。。'); PrintWriter out = null; Scanner getClient = null; ServerSocket server = null; Socket client = null; this.setFlag(); try { server = new ServerSocket(6666); //創(chuàng)建一個接收連接客戶端的對象 client = server.accept(); System.out.println(client.getInetAddress() + ' 已成功連接到此臺服務(wù)器上。'); //字符輸出流 out = new PrintWriter(client.getOutputStream()); //向客戶端發(fā)送數(shù)據(jù) out.println('歡迎來到猜數(shù)字小游戲（1-100）！！！'); out.flush();//將緩沖流中的數(shù)據(jù)全部輸出 getClient = new Scanner(client.getInputStream()); //接收客戶端發(fā)送的數(shù)據(jù) //阻塞等待客戶端發(fā)送消息過來 while (getClient.hasNextLine()) { String returnMsg = null; String tmp = getClient.nextLine(); if ('e'.equals(tmp)) { break; } else if ('c'.equals(tmp)) { returnMsg = '歡迎來到新一輪的猜數(shù)字小游戲（1-100）！！！'; this.setFlag(); } else { int clientInput = Integer.parseInt(tmp); if (clientInput > flag) { returnMsg = '你輸入的數(shù)字大了！！！'; } else if (clientInput < flag) { returnMsg = '你輸入的數(shù)字小了！！！'; } else { returnMsg = '恭喜你，猜中了！！！繼續(xù)（輸入c）,退出（輸入e）'; } } out.println(returnMsg); //向客戶端發(fā)送數(shù)據(jù) out.flush(); } } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } finally { out.close(); getClient.close(); server.close(); } } // 生成隨機數(shù)字 public void setFlag() { Random r = new Random(); flag = r.nextInt(100); System.out.println('猜數(shù)字小游戲答案：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('正在向服務(wù)器請求連接。。。'); 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('請輸入數(shù)字：'); //先讀取鍵盤錄入方可向服務(wù)端發(fā)送消息 getKey = new Scanner(System.in); while (getKey.hasNextLine()) { //寫到服務(wù)端的的控制臺 out.println(getKey.nextLine()); out.flush(); try { System.out.println('提示消息：' + getServer.nextLine()); System.out.print('請輸入數(shù)字：'); } catch (Exception e) { System.out.print('游戲結(jié)束！！！'); break; } //阻塞等待接收服務(wù)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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