OOP Basics

/*
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 * To change this template file, choose Tools | Templates
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 */
package javaoas;

/**
 *
 * @author Mobile App Develop
 */
public class Main {
    public static void main(String[] args) {
        Person person1 = new Person();

        person1.firstName = "Hafizur";
        person1.lastName = "Arfin";
        person1.middleName = "Rahman";

        Person person2 = person1;
        person2.firstName = "Fahim";


        String fullName = person1.getFullName();
        System.out.println(fullName);

        String reverseName = person1.getReverseName();
        System.out.println(reverseName);
    }
}

/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package javaoas;

/**
 *
 * @author Mobile App Develop
 */
public class Person {
    String firstName;
    String middleName;
    String lastName;

    String getFullName(){
        return firstName + " " + middleName + " " + lastName;
    }

    String getReverseName(){
        return lastName + " " + middleName + " " + firstName;
    }

}