Write a Program Example of Constructor in java - Technology369kk

 Example of Constructor

Example 1: 

class Constructor1{

    Constructor1(){

        System.out.println("Constructor Methods Called");

    }

    public static void main(String args[]){

        System.out.println("This is Example of Constructor ");

    }

    Constructor1 object = new Constructor1();         //creating object

}

OUTPUT: 

PS D:\Learning File\BCA\BCA 3rd Sem\JAVA OOP\allpraque> java Constructor1

This is Example of Constructor

Example 2: 

is is Example of Constructor

// Q2.  We have created the a student details where student class that have two parameters,

// We can have  any numbers of parameters in the constructor

class Student4{

    int id;

    String name;

    Student4(int i, String n){

        id = i;

        name = n;

    }

    void display(){

        System.out.println("Your Roll No is :-"+id+" and Name is "+ name);

    }

    public static void main(String args[]){

        Student4 s1= new Student4(111,"Shailesh");

        Student4 s2= new Student4(369,"Anshu");

        s1.display();

        s2.display();

    }

}

OUTPUT:- 

PS D:\Learning File\BCA\BCA 3rd Sem\JAVA OOP\allpraque> java Student4

Your Roll No is :-111 and Name is Shailesh

Your Roll No is :-369 and Name is Anshu