Source Code:
client Side:
package learning;
import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.Socket;
import java.net.UnknownHostException;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.JTextField;
import javax.swing.ScrollPaneConstants;
public class DailyAdviceClient {
private JTextArea incoming;
private JTextField outgoing;
private Socket sock;
private BufferedReader reader;
private PrintWriter writer;
public void go() {
JFrame frame =new JFrame("Client");
JPanel mainPanel=new JPanel();
incoming =new JTextArea(15,30);
incoming.setLineWrap(true);
incoming.setWrapStyleWord(true);
incoming.setEditable(false);
JScrollPane jScrollPane=new JScrollPane(incoming);
jScrollPane.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS);
jScrollPane.setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER);
outgoing=new JTextField(20);
JButton sendButton =new JButton("Send");
sendButton.addActionListener(new sendButtonListener());
mainPanel.add(jScrollPane);
mainPanel.add(outgoing);
mainPanel.add(sendButton);
setUpNetworking();
//IncomingReader is Runnable which override run method
Thread readerThread =new Thread(new IncomingReader());
readerThread.start();
frame.getContentPane().add(BorderLayout.CENTER, mainPanel);
frame.setSize(400, 500);
frame.setVisible(true);
}
private void setUpNetworking() {
try {
sock=new Socket("127.0.0.1",6000);
InputStreamReader streamReader=new InputStreamReader(sock.getInputStream());
reader=new BufferedReader(streamReader);
writer =new PrintWriter(sock.getOutputStream());
System.out.println("Networking established");
}catch(IOException e) {
e.printStackTrace();
}
}
public class sendButtonListener implements ActionListener{
@Override
public void actionPerformed(ActionEvent arg0) {
try {
writer.println(outgoing.getText());
writer.flush();
}catch(Exception e) {
e.printStackTrace();
}
outgoing.setText("");
outgoing.requestFocus();
}
}
public class IncomingReader implements Runnable{
@Override
public void run() {
String message;
try {
while((message=reader.readLine())!=null) {
incoming.append(message+"\n");
}
}catch(Exception e) {
e.printStackTrace();
}
}
}
public static void main(String[] args) {
DailyAdviceClient adviceServer=new DailyAdviceClient();
adviceServer.go();
}
}
Server Side:
package learning;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.ArrayList;
import java.util.Iterator;
import multithreading.TheThread;
public class DailyAdviceServer {
ArrayList clientOutputStream;
private PrintWriter writer;
public class ClientHandler implements Runnable{
BufferedReader reader;
Socket sock;
/*
* constructor of clienthandere class
*/
public ClientHandler( Socket clientSocket) {
try {
sock=clientSocket;
InputStreamReader isReader =new InputStreamReader(sock.getInputStream());
reader =new BufferedReader(isReader);
}catch(Exception e) {
e.printStackTrace();
}
}
@Override
public void run() {
String message;
try {
while((message=reader.readLine())!=null) {
System.out.println("read"+message);
tellEverone(message);
}
}catch(Exception e) {
e.printStackTrace();
}
}
}
public static void main(String[] args) {
new DailyAdviceServer().go();
System.out.println(new DailyAdviceServer().clientOutputStream);
}
public void go() {
clientOutputStream=new ArrayList<>();
try {
ServerSocket serverSocket=new ServerSocket(6000);
while(true) {
Socket clientSocket=serverSocket.accept();
writer =new PrintWriter(clientSocket.getOutputStream());
clientOutputStream.add(writer);
Thread t=new Thread(new ClientHandler(clientSocket));
t.start();
System.out.println("got a connection"+clientOutputStream.toString());
}
}catch (Exception e) {
e.printStackTrace();
}
}
public void tellEverone(String message) {
Iterator it=clientOutputStream.iterator();
while(it.hasNext()) {
try {
writer=(PrintWriter)it.next();
System.out.println(message);
writer.println(message);
writer.flush();
}catch(Exception e) {
e.printStackTrace();
}
}
}
}
