how to extends two class Android activity?

Question

I want to-->

class mainactivity extends ListActivity,MapActivity{ }

It's possible???

class mainactivity extends Any java class1,Any java Class2{ }

anyone possible??

Answer 1

you can't . java doesn't let that type of polymorphism . You must use implements for interfaces .

Read this

Answer 2

不，这是不可能的，因为你不能扩展多个类，但你可以实现多个这里没有任何用处的接口。

Answer 3

Java does not support multiple inheritance, more than one class can not be extended but there is solution , but in your case i think you can use like this:

  class MapActivity extends Service{
   ...
  }

 class mainactivity extends ListActivity{

  MapActivity mapActivity= new MapActivity();
 }

Answer 4

no its not possible because in core java a class can only inherit one class . In c++ its possible to inherit more than one class. So thats why its not possible