Constructors and Constructor Overloading in Java (in brief)

Lecture By: Veeresh Basavaraj Hatti Click the link below to download Notes of OOC-18CS45 https://sites.google.com/view/musicpluseducation/ooc-18cs45 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. Constructor Parameters: Constructors can also take parameters, which is used to initialize attributes. Rules for creating Java constructor: There are three rules defined for the constructor. 1. Constructor name must be the same as its class name 2. A Constructor must have no explicit return type 3. A Java constructor cannot be abstract, static, final, and synchronized Types of Java constructors: There are two types of constructors in Java: Default constructor (no-arg constructor) 1.Parameterized constructor 2. Constructors and Constructor Overloading in Java Java Default Constructor: A constructor is called "Default Constructor" when it doesn't have any parameter. Parameterized constructor: A constructor which has a specific number of parameters is called a 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. It is because java compiler creates a default constructor if your class doesn't have any.

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