IAA_2: Person entity

PersonModel.java

public class Person {
 
    private String _firstName;
    private String _lastName;
    private int _age;
    private Address _address;
 
    public Person(String firstName, String lastName, int age, Address address) {
        _firstName = firstName;
        _lastName = lastName;
        _age = age;
        _address = address;
    }
 
    public String getFirstName() {
        return _firstName;
    }
 
    public String getLastName() {
        return _lastName;
    }
    
    // Rest of access methods should be below
    // ...
}