Abstract class: is a restricted class that cannot be used to create objects (to access it, it must be inherited from another class). Abstract method: can only be used in an abstract class, and it does not have a body. The body is provided by the subclass (inherited from).
Read moreCan Java abstract classes have fields?
An abstract class may have static fields and static methods. You can use these static members with a class reference (for example, AbstractClass.
Read moreCan abstract classes have instance fields?
Abstract classes can have instance variables (these are inherited by child classes). Interfaces can’t. Finally, a concrete class can only extend one class (abstract or otherwise).
Read moreWhy abstract class has constructor even though you Cannot create object?
you can’t create a object of abstract class because there is an abstract method which has nothing so you can call that abstract method too . If we will create an object of the abstract class and calls the method having no body(as the method is pure virtual) it will give an error.
Read moreShould abstract class have constructor?
Yes, an Abstract class always has a constructor . If you do not define your own constructor, the compiler will give a default constructor to the Abstract class.
Read moreWhy do we need constructor in abstract class C#?
Answer: Yes, an abstract class can have a constructor. In general, a class constructor is used to initialize fields . Along the same lines, an abstract class constructor is used to initialize fields of the abstract class.
Read moreWhat is abstract class explain with example in C++?
An abstract class is a class that is designed to be specifically used as a base class . An abstract class contains at least one pure virtual function. You declare a pure virtual function by using a pure specifier ( = 0 ) in the declaration of a virtual member function in the class declaration.
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