Swing app generated by ChatRWKV

GenerateApp.java

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

public class GenerateApp extends JFrame implements ActionListener {
int count;
    private JTextField textField1;

    private static final int SIZE = 20;
    private JLabel label1;

    private JTextField jTextField1;

    private static final int SIZE2 = 20;
    private JLabel label2;

    private String nums[] = new String[SIZE2];

    public GenerateApp() {
        //Adding a label and text field to the frame...

        JPanel pnl = new JPanel();

        label1 = new JLabel("Enter the Numbers");
        pnl.add(label1);

        textField1 = new JTextField(SIZE);
        pnl.add(textField1);

        //Creating a JPanel to hold a GridLayout, with the desired size
        //for our number grid

        jTextField1 = new JTextField(SIZE);
        pnl.add(jTextField1);

        JPanel jPanel2 = new JPanel();
        jPanel2.setLayout(new GridLayout(SIZE2, 1));
        for (int i = 0; i < SIZE2; i++) {
            jPanel2.add(new JLabel(" "));
        }
        JPanel jPanel3 = new JPanel();
        jPanel3.add(jPanel2);

        //Adding our panel to the frame...

        add(pnl, BorderLayout.NORTH);
        add(jPanel3, BorderLayout.SOUTH);

        //Listening for keystrokes from the user

        addKeyListener(new KeyListener() {
            public void keyPressed(KeyEvent evt) {
                String text = textField1.getText();
                nums[count] = text;
                textField1.setText("");
                count++;
                if (text == null) {
                    text = "";
                } else if (text.equals("")) {
                    text = null;
                } else {
                    text = text + nums[count];
                }
            }

            public void keyReleased(KeyEvent evt) {
            }

            public void keyTyped(KeyEvent evt) {
            }
        });

    }

    public void actionPerformed(ActionEvent e) {

    }

    public static void main(String args[]) {
        JFrame jFrame = new GenerateApp();
        jFrame.setSize(400, 300);
        jFrame.setVisible(true);
    }
}