c51.java

java可以实现一些小程序的编写

import java.applet.*;
import java.awt.*;
public class C51 extends Applet 
{  Button button1; Button button2;
   int sum;
   public void init()
   {  button1=new Button("yes");
      button2=new Button("No");  
      add(button1);
      add(button2);     
   }
   public void start()
   {  sum=0;
      for(int i=1;i<=100;i++)
         { sum=sum+i;
         }
   }
   public void stop() { }
   public void destroy(){ }
   public void paint(Graphics g)
   {  g.setColor(Color.blue); 
      g.drawString("程序设计方法",20,60);
      g.setColor(Color.red);
      g.drawString("sum="+sum,20,100);
   }
}