Java Programming Session 23: Final & Super Keyword in Java
Hello Everyone,
Welcome to my channel Priyankaaz IT School.
In this live session I have explained about Final and Super keywords in Java.
Super keyword & final keyword we can use in inheritance
Super Keyword
============================
1.Super keyword can be used to refer immediate parent class instance variable.
2.Super keyword can be used to invoke immediate parent class method.
3.Super keyword can be used to call immediate parent class constructor.(super())
final Keyword
======================================
final keyword can be apply for variable,method and class
1.If we apply final keyword to variable then that variable will be consider constant variable(value will become fix...no one can update)
2.If we apply final keyword to method then we cant override that method in other class or child class
3.If we apply final keyword to class then we can not extend that class into another class.
=============================================================
IQ: How we can implement immutable class ,variable or method in java?
Ans: Using final keyword.
=============================================================
I hope you will love it.
Keep learning!
Thanks,
Priyanka