Constrauctor with example

Constructor:-

Constructor is a specialized method. Constructor name should be equals to class name.

 A constructor is similar to a method but Constructors doesn’t have return type (void, int,…).

A constructor does not return any value. A constructor is called & executed at the time of creating the object automatically. 

They two type of constructors

     1.       Default constructor:-

Class Student

{

Student()         //default constructor

               {

                     }

}

        2.       Parameterized constructor:-

Class Student

{

Student(par1,par2…)         //parameterized  constructor

               {

                     }

}

Example Program:-

public class Constructor_Example {

   

    public static void main(String args[])

    {

          Students ce= new Students();

          Students ce1= new Students(1214,"narendar");

         

    }

   

}

class Students{

    String collegename="VKITS";            // dynamic initialization

   

    Students(){            //default constructor

 

    System.out.println("default constructor");

}

    Students(int hno,String name)   //parameterized constructor

    {

        this.collegename=collegename;

       System.out.println("Student details : "+hno);

       System.out.println(name);

       System.out.println(collegename);

     }

}

Constructor overloading:-

Writing two or more constructors with same name with difference parameter is called constructor overloading.