Java Swing Program to demonstrate JButton Action TextField

Program

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JTextField;
import javax.swing.*;
import java.awt.event.*;
public class JButtonActionTextBox{
    public static void main(String[] args) {
        JFrame frm = new JFrame("JButton Action Listener");
        JPanel pnl = new JPanel();
        JTextField txtDisplay = new JTextField(20);
        txtDisplay.setBounds(50, 50, 150, 20);
        JButton btnSubmit = new JButton("Click Here");
        btnSubmit.setBounds(50, 200, 100, 20);
        btnSubmit.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                txtDisplay.setText("Welcome to www.oodlescoop.com");
            }
        });
        pnl.add(txtDisplay);
        pnl.add(btnSubmit);
        frm.add(pnl);
        frm.setSize(300, 300);
        frm.setVisible(true);
        frm.setLayout(null);
        frm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    }
}

Output