JAVA

how to create a constructor in java

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
    }
}

what is constructor in java

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){
}

different constructiors in java and what they do explained

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);
   }
}

java constructor example

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);
  }
}