anonymous inner class question

[Francis Palattao]

Given: From K & B Master Exam

class Bing{
  Bing(String s){
  }
  Bing(){
  }
}
class Bang extends Bing{
  Bang(){}
  Bang(Sring bangS){super(bangS);}
  // insert code here
}

which 2 create an anonymous inner class from within class Bang

A. Bang b = new Bing("Foo"){};
b. Bing b = new Bing (343){};
c. Bing b = new Bing(){"Foo";};
d. Bing b = new Bang(){};
e. Bing b = new Bing.Bang("Foo"){};

answer given C & D

I do not understand how C works because when I try to just create a class like this it doesn't work. Can someone please explain.

Class A{
"Foo";
}

[Joseph Maddison]

I saw that too - the { "Foo" }; part does not compile, so it should not have been a correct answer. I believe this is an error in the exam. This probably should go in the Errata forum...

jdmaddison

[Steven Bell]

Are you sure you copied the answers right?

c will create an anonymous class if you remove the String and leave the ;
d is fine though.

With the String in place in c you will get a compile error.

[Jay Pawar]

Yes that is wrong answer it should be

Bing b = new Bing("Foo"){};

[Barry Gaunt]

If you search this forum for "bing bang" you will see that the general opinion is that it is a typo.