why abstract class will have a constructor?
Answers were Sorted based on User's Feedback
Answer / hari krishna
All the classes including the abstract classes can have
constructors.Abstract class constructors will be called
when its concrete subclass will be instantiated.
| Is This Answer Correct ? | 7 Yes | 1 No |
Answer / nitin panwar
Bcoz each subclass executes the superclass constructor
before executing own constructor,thats why abstract class
has a constructor .
| Is This Answer Correct ? | 4 Yes | 1 No |
Answer / aditya ganjiwale
Its there to be able to initialize the abstract class
internal state.
Lets say you would like to assign two variables, you would
have to do this for every implementation, but with
constructors in the abstract class you only need it once:
So every class inheriting only needs to call the
constructor, instead of assigning the values themself every
time.
| Is This Answer Correct ? | 3 Yes | 0 No |
Answer / ram
Abstract class have the constructor in it just to instantiate its instance variables. Where as Interfaces are not containing any instance variables. That is why, they dont have constructor concept.
| Is This Answer Correct ? | 0 Yes | 0 No |
If we don’t want some of the fields not to serialize how to do that?
What do you mean by platform independence? What is an interface?
What is ternary operator?
What is stored procedure. How do you create stored procedure ?
What is lastindexof in java?
Explain what access modifiers can be used for methods?
What is the differences between heap and stack memory in java? Explain
What do you understand by overloading and overriding in java?
What is passing by reference in java?
Can you make a constructor final?
What is json parser in java?
Can array grow dynamically in java?