Learn Java Tutorial 13 Constructor with example

This tutorial is made for learning about the Constructor with example of Java Programming Language. Constructor in Java Types of constructors Default Constructor Parameterized Constructor Constructor Overloading Does constructor return any value Copying the values of one object into another Does constructor perform other task instead initialization Constructor in java is a special type of method that is used to initialize the object. Java constructor is invoked at the time of object creation. It constructs the values i.e. provides data for the object that is why it is known as constructor. Rules for creating java constructor There are basically two rules defined for the constructor. Constructor name must be same as its class name Constructor must have no explicit return type Types of java constructors There are two types of constructors: Default constructor (no-arg constructor) Parameterized constructor Constructor java tutorial: Java constructors are the methods which are used to initialize objects. Constructor method has the same name as that of class, they are called or invoked when an object of class is created and can't be called explicitly. Attributes of an object may be available when creating objects if no attribute is available then default constructor is called, also some of the attributes may be known initially. It is optional to write constructor method in a class but due to their utility they are used.