Java Object Oriented-Classes and Objects

Mobile.java
..........................
package myjava;

public class Mobile {
  String mobname;

    public Mobile(String mobname) {
        this.mobname = mobname;
        this.calling();
        this.messaging();
    }
  public void calling(){
      System.out.println(mobname+" used for Calling");
  }
  public void messaging(){
      System.out.println(mobname+" used for Messaging");
  }
 
}

Main.java
............................
package myjava;

public class Main {
    public static void main(String[] args) {
        Mobile Nokia=new Mobile("Nokia");//object of mobile class
        Mobile Samsung=new Mobile("Samsung");//object of mobile class
       
    }
}

//Here Nokia and Samsung are the instances of Mobile.....

Output
.........................
Nokia used for Calling
Nokia used for Messaging
Samsung used for Calling
Samsung usee for Messaging