본문/내용
import java.awt.BorderLayout;
import java.awt.FlowLayout;
import java.awt.GridLayout;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JTextField;
public class DoorLock_Subextends JFrame implements MouseListener{
//실행관련버튼
private JButton jbOk = new JButton(`OK`);
private JButton jbReset = new JButton(`RESET`);
//숫자버튼
private JButton jb1 = new JButton(`1`);
private JButton jb2 = new JButton(`2`);
private JButton jb3 = new JButton(`3`);
private JButton jb4 = new JButton(`4`);
private JButton jb5 = new JButton(`5`);
private JButton jb6 = new JButton(`6`);
private JButton jb7 = new JButton(`7`);
private JButton jb8 = new JButton(`8`);
private JButton jb9 = new JButton(`9`);
//보여지는 화면
private JTextField j…