anonymous class

[Shiva Mohan]

    
class Popcorn{
     public void pop(){
      System.out.println("popcorn");
     }
 
}
 
 class Food{          
   Popcorn p=new Popcorn(){  
    public void sizzle(){
     System.out.println("anonymous sizzing popcorn");
    }
  };
class Objective15{
  public static void main(String[] args){
   Food outer=new Food ();
   outer.priya();
 
   Popcorn myAccess=outer.p;//line1   
}
}

in line1,how the Food.p is assigning in PopCorn reference without telling error?what is the relation is available between popcorn and Food?

[Deepak Bala]

Food HAS A Popcorn.

outer.priya();

this compiles ?

[Chandra Bhatt]

Hi Shiva,

First of all, let's help to keep the friendly environment of
this forum alive. Please do mention the source of the
question. && No real exam question please (as moderators say )

class Popcorn{
     public void pop(){
      System.out.println("popcorn");
     }
 
} 
 class Food{          
   Popcorn p=new Popcorn(){  
    public void sizzle(){
     System.out.println("anonymous sizzing popcorn");
    }
  };
class Objective15{
  public static void main(String[] args){
   Food outer=new Food ();
   outer.priya();
 
   Popcorn myAccess=outer.p;//line1   
}
}
what is the relation is available between popcorn and Food?

Food Has-A Popcorn! Food has a anonymous class that extends the
Popcorn class, although the reference variable of the anonymous
class p is of no use in case if we desire polymorphism,
because only Popcorn methods can be called using p polymorphically;
No call to the sizzle() method, that is specific to the anonymous
class.

You are able to assign outer.p1 because superclass can hold reference
of the subclass object. p1 is the reference variable of the implementer
of the Popcorn class, so that is alright.



Regards,
cmbhatt
[ April 18, 2007: Message edited by: Chandra Bhatt ]

[Barry Gaunt]

Could be you have forgotten this old topic of yours.

[Shiva Mohan]

Hi Chandra and john,
Thanks and this is my owm working program.There is nosource for this code.

Thanks.

[Tommaso Nuccio]

Originally posted by Chandra Bhatt:

No call to the sizzle() method, that is specific to the anonymous
class.

[/QB]

Do you mean pop()?

Ciao,

[Chandra Bhatt]

do you means pop() ?

Hi Tommaso,

I meant

outer.p.pop(); // OK
out.p.sizzle(); //wont compile, because Popcorn class has not sizzle

Am I correct to explain you?


cmbhatt