Tuesday, May 28, 2019

Event Handing-list


 program to show message on applet status according to selected option of list

import java.applet.*;
import java.awt.*;
import java.awt.event.*;

public class pst10 extends Applet implements ItemListener
{
       List l;
       String msg;
       public void init()
       {
              l=new List();
              l.add("apple");
              l.add("mango");
              l.add("banana");
              add(l);
              l.addItemListener(this);
             
       }
       public void itemStateChanged(ItemEvent ie)
       {
              repaint();
       }
       public void paint(Graphics g)
       {
              msg="your selection string";     
       msg+=l.getSelectedItem();//this method is use to specify which item is currentely selected
              g.drawString(msg,20,200);
       }
}
/*
<applet code="pst10.java" width=100 height=200>
</applet>
*/
output:
 

No comments:

Post a Comment

java program (Tree)