Animated Banner program with Java

Save this file as: bannar.java

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import java.awt.*;

import java.applet.*;

public class bannar extends Applet implements Runnable

{

        String msg="Hello World";

        Thread t;

        int state;

        boolean flag;

        public void init()

        {

        }

        public void start()

        {

                t=new Thread(this);

                flag=false;

                t.start();

        }

        public void run()

        {

                char ch;

                for(;;)

                {

                        try{

                                repaint();

                                Thread.sleep(250);

                                ch=msg.charAt(0);

                                msg=msg.substring(1,msg.length());

                                msg+=ch;

                                if(flag)

                                break;

                        }catch(InterruptedException e){}

                }

        }

        public void stop()

        {

                flag=true;

                t=null;

        }

        public void paint(Graphics g)

        {

                g.drawString(msg,30,30);

        }

}

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compile this file:   javac bannar.java

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html file : bannar.html

<applet code ="bannar.class"

width=200

 height=200>

</applet>

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Run it: appletviewer bannar.html

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output