Thread: Inner class initialization and declaration

Hi,

When I do some coding on an existing project, I see some code like below inside a java method,

class_name newClass = new class_name(){
implementation of class_name...
};

can anyone explain me what it is and what is purpose of doing this?

Thanks.

It's an anonymous inner class. Sometimes you need a bare minimum of functionality that fulfils an interface and will only be instantiated once. GUI click-handlers are a perfect example. Usually every clickable control has a unique function - it would be a pain in the bum to write separate classes for each of them and offers a redundant facility: the option to instantiate more than one click-handling object.