A constructor is a special type of function with no return type . Name of constructor should be same as the name of the class. We define a method inside the class and constructor is also defined inside a class. A constructor is called automatically when we create an object of a class.
Read moreWhat is constructor and types in Java?
There are two types of constructors in Java: no-arg constructor, and parameterized constructor . Note: It is called constructor because it constructs the values at the time of object creation. It is not necessary to write a constructor for a class.
Read moreCan child class have constructor?
A constructor cannot be called as a method . It is called when object of the class is created so it does not make sense of creating child class object using parent class constructor notation. i.e. Child c = new Parent();
Read moreWhy do we use constructor?
We use constructors to initialize the object with the default or initial state . The default values for primitives may not be what are you looking for. Another reason to use constructor is that it informs about dependencies.
Read moreWhich constructor used in student class program?
Static constructors are also called class constructors.
Read moreWhat is constructor in Java with example?
A constructor in Java is similar to a method that is invoked when an object of the class is created . Unlike Java methods, a constructor has the same name as that of the class and does not have any return type. For example, class Test { Test() { // constructor body } } Here, Test() is a constructor.
Read moreWhat are constructor in Java?
A constructor in Java is a special method that is used to initialize objects . The constructor is called when an object of a class is created.
Read more