super keyword:
The super keyword refers to superclass (parent) objects. It is used to call superclass methods, and to access the superclass constructor. The most common use of the super keyword is to eliminate the confusion between superclasses and subclasses that have methods with the same name.
Usage of Java super Keyword
- super can be used to refer immediate parent class instance variable.
- super can be used to invoke immediate parent class method.
- super() can be used to invoke immediate parent class constructor.
super is used to refer immediate parent class instance variable.
We can use super keyword to access the data member or field of parent class. It is used if parent class and child class have same fields.
super can be used to invoke parent class method
The super keyword can also be used to invoke parent class method. It should be used if subclass contains the same method as parent class. In other words, it is used if method is overridden.
super is used to invoke parent class constructor.
The super keyword can also be used to invoke the parent class constructor.
References:
w3schools.com
javapoint.com
