Java - Defining a member that extends class A and implements interface B

Question

I have a variable that must meet two conditions, and I want to set them in the definition

I know that I can define either condition with an individual variable, like

Answer 1

You can declare type parameters that have multiple bounds, such as:

public static  void test(Class clazz)

But you cannot declare a variable that has multiple bounds:

private Class variable;  // doesn't work

You can create an abstract class C that extends A and implements B, so that only one bound is required.

abstract class C extends A implements B {}

Then:

private Class variable;