速求用JAVA語(yǔ)言寫(xiě)聊天室的源代碼

【ClientSocketDemo.java 客戶(hù)端Java源代碼】

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import java.net.*;

import java.io.*;

public class ClientSocketDemo

{

//聲明客戶(hù)端Socket對(duì)象socket

Socket socket = null;

//聲明客戶(hù)器端數(shù)據(jù)輸入輸出流

DataInputStream in;

DataOutputStream out;

//聲明字符串?dāng)?shù)組對(duì)象response，用于存儲(chǔ)從服務(wù)器接收到的信息

String response[];

//執(zhí)行過(guò)程中，沒(méi)有參數(shù)時(shí)的構(gòu)造方法，本地服務(wù)器在本地，取默認(rèn)端口10745

public ClientSocketDemo()

{

try

{

//創(chuàng)建客戶(hù)端socket，服務(wù)器地址取本地，端口號(hào)為10745

socket = new Socket("localhost",10745);

//創(chuàng)建客戶(hù)端數(shù)據(jù)輸入輸出流，用于對(duì)服務(wù)器端發(fā)送或接收數(shù)據(jù)

in = new DataInputStream(socket.getInputStream());

out = new DataOutputStream(socket.getOutputStream());

//獲取客戶(hù)端地址及端口號(hào)

String ip = String.valueOf(socket.getLocalAddress());

String port = String.valueOf(socket.getLocalPort());

//向服務(wù)器發(fā)送數(shù)據(jù)

out.writeUTF("Hello Server.This connection is from client.");

out.writeUTF(ip);

out.writeUTF(port);

//從服務(wù)器接收數(shù)據(jù)

response = new String[3];

for (int i = 0; i response.length; i++)

{

response[i] = in.readUTF();

System.out.println(response[i]);

}

}

catch(UnknownHostException e){e.printStackTrace();}

catch(IOException e){e.printStackTrace();}

}

//執(zhí)行過(guò)程中，有一個(gè)參數(shù)時(shí)的構(gòu)造方法，參數(shù)指定服務(wù)器地址，取默認(rèn)端口10745

public ClientSocketDemo(String hostname)

{

try

{

//創(chuàng)建客戶(hù)端socket，hostname參數(shù)指定服務(wù)器地址，端口號(hào)為10745

socket = new Socket(hostname,10745);

in = new DataInputStream(socket.getInputStream());

out = new DataOutputStream(socket.getOutputStream());

String ip = String.valueOf(socket.getLocalAddress());

String port = String.valueOf(socket.getLocalPort());

out.writeUTF("Hello Server.This connection is from client.");

out.writeUTF(ip);

out.writeUTF(port);

response = new String[3];

for (int i = 0; i response.length; i++)

{

response[i] = in.readUTF();

System.out.println(response[i]);

}

}

catch(UnknownHostException e){e.printStackTrace();}

catch(IOException e){e.printStackTrace();}

}

//執(zhí)行過(guò)程中，有兩個(gè)個(gè)參數(shù)時(shí)的構(gòu)造方法，第一個(gè)參數(shù)hostname指定服務(wù)器地址

//第一個(gè)參數(shù)serverPort指定服務(wù)器端口號(hào)

public ClientSocketDemo(String hostname,String serverPort)

{

try

{

socket = new Socket(hostname,Integer.parseInt(serverPort));

in = new DataInputStream(socket.getInputStream());

out = new DataOutputStream(socket.getOutputStream());

String ip = String.valueOf(socket.getLocalAddress());

String port = String.valueOf(socket.getLocalPort());

out.writeUTF("Hello Server.This connection is from client.");

out.writeUTF(ip);

out.writeUTF(port);

response = new String[3];

for (int i = 0; i response.length; i++)

{

response[i] = in.readUTF();

System.out.println(response[i]);

}

}

catch(UnknownHostException e){e.printStackTrace();}

catch(IOException e){e.printStackTrace();}

}

public static void main(String[] args)

{

String comd[] = args;

if(comd.length == 0)

{

System.out.println("Use localhost(127.0.0.1) and default port");

ClientSocketDemo demo = new ClientSocketDemo();

}

else if(comd.length == 1)

{

System.out.println("Use default port");

ClientSocketDemo demo = new ClientSocketDemo(args[0]);

}

else if(comd.length == 2)

{

System.out.println("Hostname and port are named by user");

ClientSocketDemo demo = new ClientSocketDemo(args[0],args[1]);

}

else System.out.println("ERROR");

}

}

////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

【ServerSocketDemo.java 服務(wù)器端Java源代碼】

import java.net.*;

import java.io.*;

public class ServerSocketDemo

{

//聲明ServerSocket類(lèi)對(duì)象

ServerSocket serverSocket;

//聲明并初始化服務(wù)器端監(jiān)聽(tīng)端口號(hào)常量

public static final int PORT = 10745;

//聲明服務(wù)器端數(shù)據(jù)輸入輸出流

DataInputStream in;

DataOutputStream out;

//聲明InetAddress類(lèi)對(duì)象ip，用于獲取服務(wù)器地址及端口號(hào)等信息

InetAddress ip = null;

//聲明字符串?dāng)?shù)組對(duì)象request，用于存儲(chǔ)從客戶(hù)端發(fā)送來(lái)的信息

String request[];

public ServerSocketDemo()

{

request = new String[3]; //初始化字符串?dāng)?shù)組

try

{

//獲取本地服務(wù)器地址信息

ip = InetAddress.getLocalHost();

//以PORT為服務(wù)端口號(hào)，創(chuàng)建serverSocket對(duì)象以監(jiān)聽(tīng)該端口上的連接

serverSocket = new ServerSocket(PORT);

//創(chuàng)建Socket類(lèi)的對(duì)象socket，用于保存連接到服務(wù)器的客戶(hù)端socket對(duì)象

Socket socket = serverSocket.accept();

System.out.println("This is server:"+String.valueOf(ip)+PORT);

//創(chuàng)建服務(wù)器端數(shù)據(jù)輸入輸出流，用于對(duì)客戶(hù)端接收或發(fā)送數(shù)據(jù)

in = new DataInputStream(socket.getInputStream());

out = new DataOutputStream(socket.getOutputStream());

//接收客戶(hù)端發(fā)送來(lái)的數(shù)據(jù)信息，并顯示

request[0] = in.readUTF();

request[1] = in.readUTF();

request[2] = in.readUTF();

System.out.println("Received messages form client is:");

System.out.println(request[0]);

System.out.println(request[1]);

System.out.println(request[2]);

//向客戶(hù)端發(fā)送數(shù)據(jù)

out.writeUTF("Hello client!");

out.writeUTF("Your ip is:"+request[1]);

out.writeUTF("Your port is:"+request[2]);

}

catch(IOException e){e.printStackTrace();}

}

public static void main(String[] args)

{

ServerSocketDemo demo = new ServerSocketDemo();

}

}

java 源代碼注釋

import java.awt.*;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import javax.swing.*;

public class GameTest extends JFrame implements ActionListener{

/*

* 新建一個(gè)主面板(這個(gè)類(lèi)可能是自定義的，本程序和API中沒(méi)有)。

*/

MainPanel j=new MainPanel();

JButton jPreview;

JLabel label;

Container container;

JPanel panel;

/**

* 主函數(shù)

* @param args

*/

public static void main(String[] args) {

//運(yùn)行程序

new GameTest();

}

/**

* 構(gòu)造函數(shù)。

*

*/

public GameTest()

{

//新建一個(gè)標(biāo)題為“拼圖”的窗口

JFrame fr =new JFrame("拼圖");

//獲取窗口容器。

container=fr.getContentPane();

//創(chuàng)建菜單條

JMenuBar jMenuBar=new JMenuBar();

//以下初始化菜單，并且設(shè)置快捷鍵和添加監(jiān)聽(tīng)器。

JMenu jMenuGame=new JMenu("游戲(G)");

jMenuGame.setMnemonic('g');

JMenuItem jMenuItemStart = new JMenuItem("開(kāi)始(S)");

jMenuItemStart.setMnemonic('s');

jMenuItemStart.addActionListener(this);

JMenuItem jMenuItemExit=new JMenuItem("退出(E)");

jMenuItemExit.setMnemonic('e');

jMenuItemExit.addActionListener(this);

jMenuGame.add(jMenuItemStart);

jMenuGame.add(jMenuItemExit);

//初始化按鈕并設(shè)置快捷鍵和添加監(jiān)聽(tīng)器

JButton jChoice=new JButton("選圖(X)");

jChoice.setMnemonic('x');

jChoice.addActionListener(this);

jPreview=new JButton("預(yù)覽(P)");

jPreview.setMnemonic('p');

jPreview.addActionListener(this);

//將菜單和按鈕添加到菜單條中

jMenuBar.add(jMenuGame);

jMenuBar.add(jChoice);

jMenuBar.add(jPreview);

//將菜單條設(shè)為該窗口的主菜單

fr.setJMenuBar(jMenuBar);

//將主面板添加到該窗口的容器中。

container.add(j);

//設(shè)置大小

fr.setSize(315,360 );

fr.setVisible(true);

//設(shè)置默認(rèn)關(guān)閉方式。

fr.setDefaultCloseOperation(3);

}

/**

* 事件處理函數(shù)。

*/

public void actionPerformed(ActionEvent e) {

if(e.getActionCommand()=="開(kāi)始(S)")

{

j.Start();

}

if(e.getActionCommand()=="預(yù)覽(P)")

{

j.setVisible(false);

panel=new JPanel();

Icon icon=new ImageIcon("pictrue/pic"+"_"+MainPanel.pictureID+".jpg");

label=new JLabel(icon);

label.setBounds(300, 300, 0, 0);

panel.add(label);

panel.setSize(300, 300);

panel.setVisible(true);

this.container.add(panel);

jPreview.setText("返回(P)");

}

if(e.getActionCommand()=="返回(P)")

{

panel.setVisible(false);

j.setVisible(true);

j.repaint();

jPreview.setText("預(yù)覽(P)");

}

if(e.getActionCommand()=="退出(E)")

{

System.exit(0);

}

if(e.getActionCommand()=="選圖(X)")

{

//初始化選擇框，并提供選擇。

Choice pic = new Choice();

pic.add("七里香");

pic.add("依然范特西");

pic.add("八度空間");

pic.add("十一月的肖邦");

pic.add("魔杰座");

pic.add("葉惠美");

pic.add("我很忙");

int i=JOptionPane.showConfirmDialog(this, pic, "選擇圖片", JOptionPane.OK_CANCEL_OPTION);

if(i==JOptionPane.YES_OPTION)

{

//選擇圖片

MainPanel.pictureID=pic.getSelectedIndex()+1;

j.removeAll();

j.reLoadPicture();

j.repaint();

}

}

}

}

俄羅斯方塊 Java源代碼 Eclipse能運(yùn)行的。要求如下圖，謝謝

import java.awt.*; \x0d\x0aimport java.awt.event.*; \x0d\x0aimport javax.swing.*; \x0d\x0apublic class Els extends JFrame implements KeyListener,Runnable \x0d\x0a{\x0d\x0apublic Els() \x0d\x0a{ \x0d\x0asetSize(240,320); \x0d\x0asetUndecorated(true); \x0d\x0aint H=(int) (this.getToolkit().getScreenSize().height); \x0d\x0aint W=(int) (this.getToolkit().getScreenSize().width); \x0d\x0asetLocation(W/2-120,H/2-160); \x0d\x0asetResizable(false); \x0d\x0asetDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); \x0d\x0a} \x0d\x0apublic void paint(Graphics g) \x0d\x0a{ \x0d\x0asuper.paint(g); \x0d\x0aGraphics2D g2=(Graphics2D)g; \x0d\x0a g2.setColor(Color.darkGray.brighter().brighter()); \x0d\x0a \x0d\x0a //繪制小框格 \x0d\x0a for(int m=192;m

回答于?2022-11-16

文章題目：java原代碼照片,寫(xiě)代碼的照片
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