public class Person {

  // state of an object

  int age;

  String name;

  // behavior of an object

  public void set_value() {

    age = 20;

    name = "Robin";

  }

  public void get_value() {

    System.out.println("Age is " + age);

    System.out.println("Name is " + name);

  }

  // main method

  public static void main(String [] args) {

    // creates a new Person object

    Person p = new Person(); 

    // changes state through behavior

    p.set_value();

  }

}