Aplikasi Chatting Menggunakan Java JCreator LE
import javax.swing.*;
import javax.swing.event.*;
import java.awt.*;
import java.awt.event.*;
import java.io.*;
import java.net.*;
public class DuniaBisnisInformatikaChat extends JFrame
{
JLabel lblServerIP = new JLabel("Server IP:");
JTextField serverIP = new JTextField(15);
JLabel lblPort = new JLabel("Port Num:");
JTextField port = new JTextField(15);
JLabel lblName = new JLabel("NickName:");
JTextField name = new JTextField(15);
JRadioButton serverBTN = new JRadioButton("Server (Host)");
JRadioButton clientBTN = new JRadioButton("Client (Guest)");
JButton connect = new JButton("Connect");
JButton disconnect = new JButton("Disconnect");
JTextArea messages = new JTextArea("",10,21);
JTextField mssg = new JTextField(15);
JButton send = new JButton("Send");
JLabel lbl = new JLabel("DB Informa");
Font btn = new Font("times new roman",Font.BOLD,20);
Font lblFont = new Font("times new roman",Font.BOLD+Font.HANGING_BASELINE,45);
Socket socket = null;
Socket socket2 = null;
ServerSocket serverSocket = null;
PrintWriter out = null;
BufferedReader in = null;
PrintWriter out2 = null;
BufferedReader in2 = null;
boolean server = true;
Color purple = new Color(108,111,206);
Color yellow = new Color(173,115,5);
Color blue = new Color(15,11,102);
public DuniaBisnisInformatikaChat()
{
super("Dunia Bisnis Informatika");
setSize(505,250);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setVisible(true);
Container contentArea = getContentPane();
GridLayout flowManager = new GridLayout(1,2);
contentArea.setLayout(flowManager);
Cursor cursor = new Cursor(Cursor.HAND_CURSOR);
setCursor(cursor);
JPanel pnl = new JPanel();
pnl.add(lbl);
lbl.setFont(lblFont);
lbl.setForeground(Color.darkGray);
pnl.add(lblServerIP);
lblServerIP.setForeground(purple);
pnl.add(serverIP);
pnl.add(lblPort);
lblPort.setForeground(purple);
pnl.add(port);
pnl.add(lblName);
lblName.setForeground(purple);
pnl.add(name);
ButtonGroup type = new ButtonGroup();
type.add(serverBTN);
serverBTN.setForeground(yellow);
serverBTN.addActionListener(
new ActionListener()
{
public void actionPerformed(ActionEvent event)
{
server = true;
}
}
);
type.add(clientBTN);
clientBTN.setForeground(yellow);
clientBTN.addActionListener(
new ActionListener() {
public void actionPerformed(ActionEvent event) {
server = false;
}
}
);
pnl.add(serverBTN);
pnl.add(clientBTN);
pnl.add(connect);
connect.addActionListener(
new ActionListener()
{
public void actionPerformed(ActionEvent event)
{
connect();
}
}
);
connect.setFont(btn);
connect.setForeground(blue);
pnl.add(disconnect);
disconnect.setEnabled(false);
disconnect.addActionListener(
new ActionListener()
{
public void actionPerformed(ActionEvent event)
{
disconnect();
}
}
);
disconnect.setFont(btn);
disconnect.setForeground(blue);
contentArea.add(pnl);
JPanel pnl2 = new JPanel();
pnl2.add(new JScrollPane(messages,
JScrollPane.VERTICAL_SCROLLBAR_ALWAYS,
JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS));
messages.setEditable(false);
messages.setCursor(new Cursor(Cursor.TEXT_CURSOR));
pnl2.add(mssg);
pnl2.add(send);
send.setEnabled(false);
send.addActionListener(
new ActionListener()
{
public void actionPerformed(ActionEvent event)
{
send();
}
}
);
contentArea.add(pnl2);
contentArea.setBackground(Color.white);
setContentPane(contentArea);
}
public void connect()
{
serverBTN.setEnabled(false);
clientBTN.setEnabled(false);
disconnect.setEnabled(true);
connect.setEnabled(false);
send.setEnabled(true);
try
{
if(!server)
{
try
{
socket = new Socket(serverIP.getText(),
Integer.parseInt(port.getText()));
out = new PrintWriter(socket.getOutputStream(), true);
in = new BufferedReader(new InputStreamReader(
socket.getInputStream()));
messages.append(in.readLine());
}
catch (Exception hostEx)
{
JOptionPane.showMessageDialog(null,"Error with port number or IP "+
"Address.","Error",
JOptionPane.ERROR_MESSAGE);
}
}
else
{
try
{
serverSocket = new ServerSocket(Integer.parseInt(port.getText()));
}
catch (Exception portInUseEx)
{
JOptionPane.showMessageDialog(null,"Port in use. Select a different "+
"port.","Port in Use",
JOptionPane.ERROR_MESSAGE);
}
PrintWriter out2 = new PrintWriter(
socket2.getOutputStream(), true);
BufferedReader in2 = new BufferedReader(
new InputStreamReader(
socket2.getInputStream()));
messages.append(in2.readLine());
}
}
catch (Exception exception)
{
}
}
public void disconnect()
{
serverBTN.setEnabled(true);
clientBTN.setEnabled(true);
disconnect.setEnabled(false);
connect.setEnabled(true);
send.setEnabled(false);
try
{
if(!server)
{
out.close();
in.close();
socket.close();
}
else
{
out2.close();
in2.close();
socket2.close();
serverSocket.close();
}
}
catch(Exception closeEx)
{
}
}
public void send()
{
try
{
if(!server)
{
messages.append(name.getText() + ": " + mssg.getText() + "\n");
out.println(name.getText() + ": " + mssg.getText());
}
else
{
messages.append(name.getText() + ": " + mssg.getText() + "\n");
out2.println(name.getText() + ": " + mssg.getText());
}
}
catch(Exception e3)
{
}
}
public static void main (String [] args)
{
new DuniaBisnisInformatikaChat();
}
}
Output :
 |
.jpg)
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