calc.java

java 完全探索的随书源码

// Calc.java

import java.awt.*;
import java.applet.Applet;

public class Calc extends Applet
{
   public void init ()
   {
      setLayout (new BorderLayout ());

      add (new Label ("0", Label.RIGHT), BorderLayout.NORTH);

      Panel p = new Panel ();
      p.setLayout (new GridLayout (4, 4));

      String [] btnNames =
      {
         "7", "8", "9", "/", "4", "5", "6", "x",
         "1", "2", "3", "-", "0", ".", "C", "+"
      };

      for (int i = 0; i < btnNames.length; i++)
           p.add (new Button (btnNames [i]));

      add (p, "Center");
   }
}