It's starting off pretty well

make sure to add @ mentions

wow

but how do you use

It's still in it's primitive stage.
I just made this like half an hour ago, so it'll take me a few days to make it work properly.

oh cool

import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.JTextField;

public class WindowAccess {
public static void main(String[] args) {
JOptionPane.showMessageDialog(null, "Welcome, to ########## beta by Asriel_Lalonde.");

JFrame frame = new JFrame("Pester Room");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setSize(400, 400);

JTextArea chatArea = new JTextArea();
chatArea.setEditable(false);
JScrollPane chatScrollPane = new JScrollPane(chatArea);
frame.add(chatScrollPane, BorderLayout.CENTER);

JPanel inputPanel = new JPanel(new BorderLayout());
JTextField inputField = new JTextField();
inputPanel.add(inputField, BorderLayout.CENTER);
JButton sendButton = new JButton("Send");
inputPanel.add(sendButton, BorderLayout.EAST);
frame.add(inputPanel, BorderLayout.SOUTH);

sendButton.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
String message = inputField.getText();
if (!message.isEmpty()) {
chatArea.append(message + "\n");
inputField.setText("");
}
}
});

frame.setVisible(true);
}
}

Did you just comment the whole code infront of our ass?

This is just the code to make the mainframe.
Not the entire code, silly.