Asked by: Aray Berezutzky
asked in category: General Last Updated: 25th February, 2020

Can we extend two abstract class Java?

A: Java has a rule that a class can extend only one abstract class, but can implement multiple interfaces (fully abstract classes). And imagine that Java allows a class to extend more than one abstract class, so we can write a class C that extends both A and B. And imagine that C doesn't implement foo().

Click to see full answer.

Also know, can an abstract class extend another abstract class Java?

A class can be an abstract class without having any methods inside it. But if it has any methods inside it, it must have at least one abstract method. This rule does not apply to static methods. Abstract classes can extend other at most one abstract or concrete class and implement several interfaces.

Secondly, why we Cannot extend two classes in Java? Originally Answered: why we can't extend more than one class in java? That's because Java does not support multiple inheritance in order to avoid circular dependencies or ambiguity. If class C extends Both A and B class, then the super class while calling invoke would become ambiguous.

Likewise, can we extend more than one class in Java?

No, Java cannot extend multiple classes. To use this feature create “Interface” then implement it. Multiple interfaces can be implemented in the same class along with one parent class. So it is not possible to use multiple Inheritance in Java.

Can an abstract class extend a concrete class?

An abstract class always extends a concrete class ( java. If you want to instantiate it, you will have to subclass it with a concrete implementation of those abstract methods and instantiate it through the concrete class. Just like you always do.

34 Related Question Answers Found

Can a class extend an interface?

Which is better abstract class or interface?

Can an abstract class have a constructor?

Can an interface have a constructor?

Can you extend a non abstract class?

Can abstract class have normal methods?

Can abstract class be empty?

Can we create object of abstract class?

Can one class extend two classes?

Can we override static method?

Why pointers are not used in Java?

How do you add another class in Java?

What is Polymorphism in Java?

Why Multiple inheritance is not possible in Java?