Anonymous Inner Class

[Anonymous]

Hi!
Is de same Anonymous Inner Class and Inner Class??
Thanks.

[Manfred Leonhardt]

Hi Jordi,
No way!
An anonymous class has no name.
An example:

  Button b = new Button("Test");
  b.addActionListener( // Anon class follows
    new ActionListener()
    {
      public void actionPerformed( ActionEvent ae )
      {
        System.out.println( "Method inside anon class!" );
      }
    });

An inner class can be any class defined inside another class. An example:

public class Outer
{
  // Inner class defined here.
  private class MyButton extends Button
  {
  }
  public Outer()
  {
    // Inner class used here.
    MyButton mb = new MyButton();
  } 
}

Regards,
Manfred.

[kavita desai]

Hi Jordi,
you can have various inner classes. Anonymous Inner class is one of them.
1. member inner class. which a class inside a class with a name but not same as the enclosing class
2. local inner class. class inside a method, has a name.
3. anonymous inner class. does not have a name, used widely in connection with event handling.
4. you can also have an interface inside a class.
hope that explains,
kavita desai

[Anonymous]

Then, anonymous class is code without class??

[kavita desai]

it is rather class without a name. the comiler supplies all the necessary code. If we go by the example of anonymous class given by Manfred...in line 3, the anonymous class is created which extends Object and implements ActionListener. The compiler creates a class file for the anonymous class with the name... (supposing the name of the enclosing class is Outer) Outer$1.class.
please correct me if i am wrong,
kavita desai