toyface.java

简单的GUI程序 建一个小型的计算器, 是一个简单的GUL, 具有以下元素 (1) 数字键 1, 2, 3 (2) 清除显示键C (3) 显示窗口

import javax.swing.JPanel;
import javax.swing.*;
import java.awt.*;

public class ToyFace extends JPanel {
  public ToyFace()
  {
	  lcd = new Lcd(13);
	  keypad = new Keypad(lcd);
	  setLayout(new GridLayout(0, 1) );
	  add(lcd);
	  add(keypad);
  }
  protected Lcd lcd;
  protected Keypad keypad;
  
  public static void main(String[] args)
  {
	  JFrame win = new JFrame("ToyFace");
	  win.addWindowListener(new WindowHandler(win));
	  ToyFace cf= new ToyFace();
	  win.setContentPane(cf);
	  win.pack();
	  win.setVisible(true);
  }
}