public class Hello {

   String name;

   //Constructor

   Hello(){

      this.name = "BeginnersBook.com";

   }

   public static void main(String[] args) {

      Hello obj = new Hello();

      System.out.println(obj.name);

   }

}

class Other{

    public Other(String message){

        System.out.println(message);

    }

}

​

class scratch{

    public static void main(String[] args) {

        Other method = new Other("Hey");

        //prints Hey to the console

    }

}

A constructor is a special method used to initialize objects in java.

we use constructors to initialize all variables in the class 

when an object is created. As and when an object

is created it is initialized automatically with the help of 

constructor in java.

We have two types of constructors:

Default Constructor

Parameterized Constructor

​

public classname(){

}

public classname(parameters list){

}

public class Car {

    private String make;

    private String model;

    // Constructor

    public Car(String make, String model) {

        this.make = make;

        this.model = model;

    }

    // Other methods and variables

    public void startEngine() {

        // Code to start the car's engine

    }

    public void drive() {

        // Code to make the car drive

    }

    // Getters and setters for make and model

}

class Main {

  private String website;

  // constructor

  Main() {

    website = "'softhunt.net'";

  }

​

  public static void main(String[] args) {

​

    // constructor is invoked while

    // creating an object of the Main class

    Main obj = new Main();

    System.out.println("Welcome to " + obj.website);

  }

}