Java constructor

super() can be used to invoke immediate parent class constructor .

How are this() and super() used with constructors? Constructors use this to refer to another constructor in the same class with a different parameter list . Constructors use super to invoke the superclass’s constructor. If a constructor uses super, it must use it in the first line; otherwise, the compiler will complain.

In Java, the superclass, also known as the parent class , is the class from which a child class (or a subclass) inherits its constructors, methods, and attributes . For instance, in our above example, BankAccount was the superclass from which our subclass SavingsAccount inherited its values.

In Java, the superclass, also known as the parent class , is the class from which a child class (or a subclass) inherits its constructors, methods, and attributes . For instance, in our above example, BankAccount was the superclass from which our subclass SavingsAccount inherited its values.

Definition and Usage The super keyword is used to call the constructor of its parent class to access the parent’s properties and methods . Tip: To understand the “inheritance” concept (parent and child classes) better, read our JavaScript Classes Tutorial.

Definition and Usage The super keyword is used to call the constructor of its parent class to access the parent’s properties and methods . Tip: To understand the “inheritance” concept (parent and child classes) better, read our JavaScript Classes Tutorial.

super() can be used to invoke immediate parent class constructor .