Re: [java-list] Inner Class

SoJava Sun, 13 Oct 2002 07:22:10 -0700

Title: Message

Oi, segue dois exemplos.

Um bom lugar para entender a finalidade de inner class é em http://java.sun.com/products/jdk/1.1/docs/guide/innerclasses/spec/innerclasses.doc.html

T++

1.)*********

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

public class Inner extends Frame
{
Inner()
{
        super("Inner Test");
        add(new Button("Exit app to use inner class"));
        setBounds(100,100,200,200);
        setVisible(true);

        addWindowListener(new Closer());
}

public static void main(String args[]){new Inner();}

class Closer extends WindowAdapter
{
public void windowClosing(WindowEvent e) {System.exit(0);}
}

}

2.)**************

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

public class Inner2 extends Frame
{
Inner2()
{
        super("Inner2 Test");
        add(new Button("Exit"));
        setBounds(100,100,200,200);
        setVisible(true);

        // This code defines a new WindowAdapter extension which listens
        // for windowClosing, and then kills the app.
        // It generates a Inner2$1.class
        addWindowListener(new WindowAdapter()
        {
         public void windowClosing(WindowEvent e){System.exit(0);}
        });
}
public static void main(String args[]){new Inner2();}
}

Marcelo Hablocher

Accenture

[EMAIL PROTECTED]

----- Original Message -----

From: Vieira, Pablo O.

To: 'Java List'

Sent: Thursday, October 10, 2002 08:55

Subject: [java-list] Inner Class

Pessoal, gostaria de saber onde e por que usar inner classes. Quais as vantagens e desvantagens? quais sao suas propriedades? Se alguem tiver um exemplo prático de aplicaçao de inner class para me enviar eu agradeço, se quiserem mandem diretamente para o meu email.

Obrigado,

Pablo Oliveira Vieira
Walar Informática
Fone: 55 11 3741.2614
Fax: 55 11 3741.9677
e-mail: [EMAIL PROTECTED]

Re: [java-list] Inner Class

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