Can abstract class have constructor?

Naveen Bisht

Can abstract class have constructor? if yes? then we know that we can't create the object of class, then how do we use that?

6 Replies

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Mageshwaran R6y ago
Hi,
Yes, an abstract class can have a constructor, even though abstract class cannot be instantiated. An abstract class constructor c# code example will be explained.For example in program, if we create object of derived class then abstract base class constructor will also be called
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Jignesh Kumar7y ago
Hi Naveen,

Yes,
We can create constructor for abstract class. Yes, we can not create object of abstract class but if we have abstract class then we must have derived class to implement base abstract class so when we create object of child class(derived class) then base class constructor get invoke before child class constructor.
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Sneha Reddy7y ago
Yes, we can define constructors for Abstract Classes. Though constructors of an Abstract class are not instantiated, these will be automatically invoked when the derived class objects are created.
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Munish Kumar7y ago
Yes, we can have constructor in an Abstract Class. As we know, abstract classes can not be instantiated, so when the object of a derived class is being created then constructor of base abstract class calls automatically.
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Kapil Gaur7y ago
Yes An abstract class can have a constructor, even though abstract class cannot be instantiated but when derived class is istantiated then constructor of parent abstract class is automatically called.
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Awesome Ayappan9y ago
Yes, We can create constructor for abstract class.
But, We cannot create object and access that.
The Abstract class will be inherited for a normal class when the object created for normal class the abstract calss constructor will be called.

Eg:
abstract class Class1
{
public Class1()
{

}
public abstract void aa();
}

class Program : Class1
{
static void Main(string[] args)
{
Program p = new Program();
p.aa();
}
}

Here when Program p is initilized the abstract class ctor will be called.

Hope this correct.
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