java help

[sunny22]

I wrote a simple instant messaging program with no gui. I designed the gui seperately. Now i want to run the program with the gui, how do i do that?

Heres the code:

Socket Server-

import java.util.*;
import java.io.*;
import java.net.*;

class MessageServer {

private static ServerSocket servSock;
private static final int PORT = 1234; // connect on port 1234

public static void main(String[] args) {

System.out.println("Opening port... \n");
try {
servSock = new ServerSocket(PORT);
}

catch(IOException e) {
System.out.println("Unable to set up port!");
System.exit(1); // exit if there is a connection problem
}

do {
run();
} while (true); // infinite loop
}

private static void run() {

Socket link = null;

try {
link = servSock.accept(); // wait on server until message is recieved
Scanner input = new Scanner(link.getInputStream());
PrintWriter out = new PrintWriter(
link.getOutputStream(),true); // output

int numMessages = 0;
String message = input.nextLine();

while (!message.equals("***CLOSE***")) {
System.out.println("Message Recieved.");
numMessages++;
out.println("Message " + numMessages
+ ": " + message);
message = input.nextLine();
}

out.println(numMessages + " messages recieved.");
input.close();
link.close();
}

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

finally {
try {
System.out.println("\n* Closing connection...*");
link.close();
}

catch (IOException e) {
System.out.println("Unable to disconnect!");
System.exit(1);
}
}
}
}



client -

import java.util.*;
import java.io.*;
import java.net.*;

class MessageClient {

private static InetAddress host;

private static final int PORT = 1234; // connect to server on port 1234

public static void main(String args[]) {
try {
host = InetAddress.getLocalHost();
}

catch (UnknownHostException e) {
System.out.println("Host not found!");
System.exit(1);
}
run();
}

private static void run() {


Socket link = null;

try {
link = new Socket(host,PORT);
Scanner networkInput =
new Scanner(link.getInputStream());
PrintWriter out = new PrintWriter(
link.getOutputStream(),true);

//Set up scanner for keyboard entry
Scanner userEntry = new Scanner(System.in);

String message="", response;
do {
System.out.print("Enter message: ");
message = userEntry.nextLine();
out.println(message);
response = networkInput.nextLine();
System.out.println("\nType> " + response);

} while (!message.equals("***CLOSE***"));
}
catch (IOException e) {
e.printStackTrace();
}

finally {

try {
System.out.println("\n* Closing connection...*");
link.close();
}
catch (IOException e) {
System.out.println("Unable to disconnect!");
System.exit(1);
}
}
}
}



gui -

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.util.*;
import java.io.*;
import java.net.*;

public class Simple extends JFrame implements ActionListener {

private static Simple frame;
private static JButton button;
private static JButton button1;
private static JButton button2;
private static JButton button3;
private static JLabel label;
private static JTextField line;
private static JTextField text;

public static void main(String[] args) {

Simple frame = new Simple();
frame.setTitle("Chatroom");
frame.setSize(500,500);
frame.setDefaultCloseOperation(EXIT_ON_CLOSE);
frame.setVisible(true);
}

public Simple() {

setLayout(new FlowLayout());

JTextArea text = new JTextArea(24,40);
text.setWrapStyleWord(true);
text.setLineWrap(true);

add(new JScrollPane(text));

button1 = new JButton("Submit");
button = new JButton("Quit");

JLabel label = new JLabel();
JTextField line = new JTextField(40);
add(line);
add(label);

add(button1);
add(button);


button1.addActionListener(this);
button.addActionListener(this);

}

public void actionPerformed(ActionEvent e) {

if (e.getSource() == button1)

if (e.getSource() == button)
System.exit(0);

}
}


sorry for the long post

[towlies high]

did u write them from scratch or you get that from the net?

[sunny22]

the server and client r part me part a tutorial and the gui is from scratch
none of it is overwhelmingly complicated, i just don't know how to combine the client and gui lol

[towlies high]

maybe ask whoever wrote the tutorial...or published it.

[VHockey86]

You need to setup your action performed method to handle the input from a JTextBox. Then you should be able to feed that back into your non-gui class.

You'll want the main class of your non-gui class to create and instance of the GUI.

[sunny22]

how would i tell my "submit" button to send the typing to the server.
I dont know of any acrtion listner methods to do it

[VHockey86]

Create a method in the client like "public void sendMessage(String msg)", which handles sending the message to the server of course.

Then have your action listener take the text from JTextBox when the user hits submit and send it to the sendMessage method.

Here's a link to a directory of code from my computer science 2 projects, which was an instant messaging client.
http://www.andrewpangborn.com/files/.../CS2/project2/

The server however was already written for us, but you may want to look at "ChatWindowGUI.java" for reference on actionPerformed stuff.

//Creates the input box and puts it in a scroll pane
	textBox = new JTextArea(3,0);
	//Adds a keybinding to the enter key to send messages.
        textBox.getInputMap().put(KeyStroke.getKeyStroke("ENTER"),"enter");
        textBox.getActionMap().put("enter",new AbstractAction() {
                public void actionPerformed(ActionEvent e) {
		    if(textBox.getText().length() > 0) {
			sendMsg(textBox.getText());
		    }
                }
            });

Its setting up a keybinding to the enter key and defining an action for it. It's probably a bit confusing if you are new to java

alternatively, just do something like this

// misc code
JButton submit = new JButtion("submit);
JTextArea text = new JTextArea(3,0);
submit.addActionListener(this);
// misc code
public void actionPerformed(ActionEvent e) {
            if(e.getSource() == submit) {
                   theClient.sendMessage(text.getText()); //assumes you have a reference to the client object called "theClient"
            }
}