a question about anonymous question

[michael wang]

Q1
Which of the following statements are true?
A) An anonymous class cannot have any constructors
B) An anonymous class can only be created within the body of a method
C) An anonymous class can only access static fields of the enclosing class
D) An anonymous class instantiated and declared in the same place.

i think the answer is ABD
however the answer given is AD
why?
Q2
Is there any difference between anonymous inner class and anonymous class?
thanks
[ March 04, 2002: Message edited by: michael wang ]

[Rob Ross]

You can use an anonymous class inside a constructor, which is not a method. Or how about this example:

public class AnonymousRunnable
{
    Thread t = new Thread(new Runnable(){

public void run()
{
    System.out.println("I am an anonymous class!");   
}
    });
    public AnonymousRunnable()
    {
t.start();
    }
    
    /**
     *
     */
    static public void main(String[] args) 
    {
new AnonymousRunnable();
    }
}

There's two examples that prove B is false.

An inner class is a class defined inside the instance of another class. An anonymous class just means you are creating an instance of a subclass of a class without giving the subclass a name. So they are two different things. That being said, you can't define a top-level anonymous class; the only place you can define an anonymous class is within something else. So in practice, your anonymous class is always going to be a nested class.

[michael wang]

it's very clear
thanks Rob