Event Handling using Inner Class in Applet

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Demonstrates the example for handling event using Inner Class in Java Applet

We can handle the Event in Applet, AWT or Swing by following three different methods:

  • Inner Class
  • Anonymous class
  • this Pointer

In this example, i will show you that how to use inner classes to handle the events in Applet.

package com.kunal.applet;

import java.applet.Applet;
import java.awt.Button;
import java.awt.TextField;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

public class InerClassButton extends Applet {

 TextField txtSource;
 Button btnLower,btnUpper;
 String lowerText="lower case";

  public void init()
     txtSource=new TextField(20);
     btnLower=new Button(lowerText);
     btnUpper=new Button("upper case");

     btnLower.addActionListener(new MyActionListener());
     btnUpper.addActionListener(new MyActionListener());

   class MyActionListener implements ActionListener
     public void actionPerformed(ActionEvent evt) {
     String tmp=txtSource.getText();

Event Handling using Inner Class in Applet

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