Is it necessary to call super constructor in Java?

A subclass needs a constructor if the superclass does not have a default constructor (or has one that is not accessible to the subclass). If the subclass has no constructor at all, the compiler will automatically create a public constructor that simply calls through to the default constructor of the superclass.

A subclass needs a constructor if the superclass does not have a default constructor (or has one that is not accessible to the subclass). If the subclass has no constructor at all, the compiler will automatically create a public constructor that simply calls through to the default constructor of the superclass.

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.