What is Constructor in java?

Constructor

• In Java, a constructor is a block of codes similar to the method. It is called when an Object of the class is created.

• It is a special type of method which is used to initialize the object.

Rule of Constructor

There are two rules defined for the constructor.

• The Constructor has the same name as the class.

• A Constructor must have no explicit return type.

• The constructor is called automatically every time you make an object.

Syntax

class Classname{
    Classname(){
        // constructor body
    }
}

Example

class Student {

    // Constructor
    public Student() {
       System.out.println("Constructor");
    }

    public static void main(String[] args) {
        System.out.println("Method");

        Student s1 = new Student();

    }
}