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Server.java
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Server.java
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import java.net.*;
import java.io.*;
import javax.swing.*;
import java.awt.Font;
import java.awt.BorderLayout;
import javax.swing.border.*;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import static java.lang.System.out;
//server program
public class Server extends JFrame
{
//for gui
public JLabel heading=new JLabel("Server");
public JTextArea msgbox =new JTextArea();
public JTextField msginput=new JTextField();
public Font font =new Font("Roboto",Font.PLAIN,20);
public void gui()
{
this.setTitle("CHAT APPLICATION");
this.setSize(400,600);
this.setLocationRelativeTo(null);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
heading.setFont(font);
msgbox.setFont(font);
msginput.setFont(font);
this.setLayout(new BorderLayout());
this.add(heading,BorderLayout.NORTH);
heading.setHorizontalAlignment(SwingConstants.CENTER);
heading.setBorder(BorderFactory.createEmptyBorder(10,10,10,10));
this.add(msgbox,BorderLayout.CENTER);
msgbox.setEnabled(false);
this.add(msginput,BorderLayout.SOUTH);
this.setVisible(true);
}
public void eventhandler()
{
msginput.addKeyListener(new KeyListener()
{
public void keyTyped (KeyEvent e)
{
}
public void keyPressed (KeyEvent e)
{
}
public void keyReleased (KeyEvent e)
{
//for debugging
// System.out.println("keyreleased "+e.getKeyCode());
if(e.getKeyCode()==10)
{
String contentToSend =msginput.getText();
msgbox.append("Server: "+contentToSend+"\n");
System.out.println(contentToSend);
write.println(contentToSend);
write.flush();
out.flush();
msginput.setText("");
msginput.requestFocus();
}
}
});
}
//
ServerSocket server;
Socket socket;
BufferedReader read;// for reading
PrintWriter write;// for Writing
public void start_read()
{
//creating threads
Runnable r1= ()->{
while(true)
{
try {
String msg=read.readLine();
if(msg.equals("exit"))
{
System.out.println("CHAT ENDED(Client)");
System.out.println("SESSION TERMINATED");
JOptionPane.showMessageDialog(this,"SESSION TERMINATED(Client)");
msginput.setEnabled(false);
socket.close();
System.exit(0);
break;
}
System.out.println("Client: "+msg);
msgbox.append("Client: "+msg+"\n");
}
catch(Exception e) {
//e.printStackTrace();
System.exit(0);
}
}
};
new Thread(r1).start();
}
public void start_write()
{
Runnable r2=()->{
while(true)
{
try {
BufferedReader console=new BufferedReader(new InputStreamReader(System.in));
String content= console.readLine();
write.println(content);
write.flush();
}
catch(Exception e) {
e.printStackTrace();
}
}
};
new Thread(r2).start();
}
public Server() //Constructor of server class
{
try {
server=new ServerSocket(1230);
System.out.println("Server is Waiting...");
socket=server.accept();
System.out.println("[Client Connected]");
read= new BufferedReader(new InputStreamReader(socket.getInputStream()));
write= new PrintWriter(socket.getOutputStream());
gui();
eventhandler();
start_read();
start_write();
} catch(Exception e) {
e.printStackTrace();
}
}
public static void main(String[] args) {
System.out.println("[Server Started]");
new Server();
}
}