example1.java

一个十分好的java基础学习的课件

import java.applet.*;
import java.awt.*;
public class Example1 extends Applet
{   Button button1,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);
    }
}