Java Tutorial Part32 | Constructors|Types of Constructor|Default and Parameterized

Published: 16 November 2023
on channel: ARIVU INFO

Java Tutorial Part32 | Constructors|Types of Constructor|Default and Parameterized|Initialization through Constructors

Rules for creating Java constructor
Constructor name must be the same as its class name
A Constructor must have no explicit return type

Types of Java constructors
Default constructor (no-arg constructor)
Parameterized constructor

A constructor is called "Default Constructor" when it doesn't have any parameter.
If there is no constructor in a class, compiler automatically creates a default constructor.

What is the purpose of a default constructor?
The default constructor is used to provide the default values to the object like 0, null, etc., depending on the type.

A constructor which has a specific number of parameters is called a parameterized constructor.

Why use the parameterized constructor?
The parameterized constructor is used to provide different values to distinct objects.

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