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Project Information
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import java.io.; import java.net.; import java.util.; import javax.swing.; import java.awt.; import java.awt.event.; public class SimpleChatClient { JTextArea incoming;
JTextField outgoing;
BufferedReader reader;
PrintWriter writer;
Socket sock;
public static void main(String args)
{
SimpleChatClient client=new SimpleChatClient();
client.go();
}
public void go()
{
JFrame frame = new JFrame("Simple chat Client");
JPanel mainPanel = new JPanel();
incoming = new JTextArea(15,30);
incoming.setLineWrap(true);
incoming.setWrapStyleWord(true);
incoming.setEditable(false);
JScrollPane aScroller=new JScrollPane(incoming);
//aScroller.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS);
//aScroller.setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_ALWAYS);
outgoing = new JTextField(20);
JButton sendButton =new JButton("send");
sendButton.addActionListener(new SendButtonListener());
mainPanel.add(aScroller);
mainPanel.add(outgoing);
mainPanel.add(sendButton);
setUpNetworking();
Thread readerThread=new Thread(new IncomingReader());
readerThread.start();
frame.getContentPane().add(BorderLayout.CENTER,mainPanel);
frame.setSize(400,500);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setVisible(true);
}
public void setUpNetworking()
{
try{
sock=new Socket("140.114.201.51",5000);//teporary
InputStreamReader streamReader=new InputStreamReader(sock.getInputStream());
reader=new BufferedReader(streamReader);
writer=new PrintWriter(sock.getOutputStream());
System.out.println("net working established");
}catch(IOException ex)
{
ex.printStackTrace();
}
}
public class SendButtonListener implements ActionListener
{
public void actionPerformed(ActionEvent ev)
{
try{
writer.println(outgoing.getText());
writer.flush();
}
catch(Exception ex)
{
ex.printStackTrace();
}
outgoing.setText("");
outgoing.requestFocus();
}
}
public class IncomingReader implements Runnable
{
public void run()
{
String message;
try{
while ((message=reader.readLine())!=null)
{
System.out.println("read"+message);
incoming.append(message+"\n");
}
}catch(Exception ex)
{
ex.printStackTrace();
}
}
}
}
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