Spring bean scope. Singleton and Prototype

Question

Suppose two classes ClassA and ClassB. Lets suppose ClassB is dependent on ClassA. On configuration file, if we define scope of ClassA to be singleton and that of ClassB to

Answer 1

what happens to instance of ClassB each time we create a bean instance of ClassA?

Nothing, if ClassA is singleton it will be instantiated only once.

Will the same ClassB instance gets returned or new instance is created each time instance of ClassA is returned?

Different instances, since it's a prototype bean. But since ClassA is singleton it will be instanciated the same way every time.(depends on your relation between these classes that you mentioned)