Constructor

Constructor is a block of code that initializes the newly created object. A constructor resembles an instance method in java but it’s not a method as it doesn’t have a return type. In short constructor and method are different(More on this at the end of this guide). People often refer constructor as special type of method in Java.

Constructor has same as the class and it does not have return type

public class MyClass{
   //This is the constructor
   MyClass(){
   }
   ..
}

How does a constructor work

MyClass obj = new MyClass()

The new keyword here creates the object of class MyClass and invokes the constructor to initialize this newly created object.

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);
   }
}