Superclass of the object

Hello

All java classes are a subclass of the object. Consider this scenario,
class A {
}
class B extends A {
}
Now what of class B? Is also a subclass of the object?

Thank you
RAM

RAM wrote:

Kayaman wrote:

RAM wrote:
I mean

Object     A
\    /
B

Isn't multiple inheritance?

No matter what it is, it is something that cannot be done in Java.

Can you tell the difference between the two great classes?

The difference is: this particular case can be done in Java.

So, in this case, can we say class B is not a subclass of the Object class?

It seems that you were not attentive at all.

Once again:

Multiple inheritance (of implementation):
NOT supported by Java
-----------------------------------------
class A {}
class B {}
class C extends A, B {}

  A   B
   \ /
    C

NOT Multiple inheritance
Supported by Java
-----------------------------------------
class A{}
class B extends A{}
class C extends B{}

 A
 |
 B
 |
 C

In both cases, C is a subclass of A, and C is also a subclass of B.

In addition, in both cases, A, B, and C are all subclasses of object. As we have already said in the other thread, which prompted to create this thread (but still somehow apparently ignored by you), every class is a subclass of the object.

Tags: Java

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