There is an implicit call to super() with no arguments for all classes that have a parent – which is every user defined class in Java – so calling it explicitly is usually not required . However, you may use the call to super() with arguments if the parent’s constructor takes parameters, and you wish to specify them.
Read moreWhat happens if we don’t use constructor for a class?
No-argument constructor If we don’t define a constructor in a class, then the compiler creates a default constructor(with no arguments) for the class .
Read moreWhat is the purpose of super ()?
The super() in Java is a reference variable that is used to refer parent class constructors . super can be used to call parent class’ variables and methods. super() can be used to call parent class’ constructors only.
Read moreWhy super is called in constructor?
What happens if we call “super()” in a constructor without extending any class, in java? A super keyword is a reference of the superclass object in Java . Using this, you can invoke the instance methods constructors and, variables, of a superclass.2 Tem 2019
Read moreWhat is super () in constructor Java?
super() can be used to invoke immediate parent class constructor . 1) 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.
Read moreHow can we call super in constructor?
To explicitly call the superclass constructor from the subclass constructor, we use super() . It’s a special form of the super keyword. super() can be used only inside the subclass constructor and must be the first statement.
Read moreWhat is a super constructor in Java?
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.
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