package kr.ac.jj; import java.awt.Color; import java.awt.Font; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.MouseListener; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JTextField; public class Swing_001 extends JFrame implements ActionListener{ JLabel lb; JLabel lbValue; JTextField txtName; ..