Lab#SE00-1: Maven Person

Java SE Lab 00

javase
lab
model
composition
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Java SE Lab 00 - Part 1
Author

albertprofe

Published

Tuesday, June 1, 2021

Modified

Tuesday, September 26, 2023

📘 Linux Lab#SE00-1: Person

  1. Create a Maven/Gradle Java SE Project with the UML and classes defined below.

  2. Add Lombok, JUnit and Faker dependencies

  3. Refactor: remove boilerplate code (getters, setters and so on) and work with Lombok

  4. Create Junit tests to test objects. Use Faker to create objects:

    1. Test createPerson: check whether the object Person creation works properly.
    2. Test createCar: check whether the object Car creation works properly.
    3. Test createBook: check whether the object Book creation works properly.
    4. Test createStudent: check whether the object Student creation works properly
    5. Without composition: a Student object without car and books.
    6. With composition: a Student object with Car object and Book List objects

  5. Create Junit tests to test operations:

    1. Test methodsPerson: check that Person methods work properly: becomeOlder(), killVampire(), withFirstName()

  6. Improve Car, Book and Author classes with two methods each.

1 UML

classDiagram
class Person {
  -firstname: String
  -lastname: String
  -age: int
}

class Student {
  -university: String
}

class Author {
  -genre: String
}


Person --|> Student: Inheritance
Person --|> Author: Inheritance


classDiagram

class Student {
  -university: String
  -car: Car
  -books: ArrayList~Book~
}

class Author {
  -genre: String
  -book: Book
}

class Book {
  -title: String
  -ISBN: String
  -pages: int
  -author: Author
}

class Car {
     -places: int
     -color: String
}

Student *-- Book: Composition
Book *-- Author: Composition
Student *-- Car: Composition
Author *-- Book: Composition


classDiagram
class Person {
  -firstname: String
  -lastname: String
  -age: int
}

class Student {
  -university: String
  -car: Car
  -books: ArrayList~Book~
}

class Author {
  -genre: String
  -book: Book
}

class Book {
  -title: String
  -ISBN: String
  -pages: int
  -author: Author
}

class Car {
     -places: int
     -color: String
}

Person --|> Student: Inheritance
Person --|> Author: Inheritance

Student *-- Book: Composition
Book *-- Author: Composition
Student *-- Car: Composition
Author *-- Book: Composition

2 Base Classes

2.1 Person Class

Here, the Person class represents a person with a name, address and others.

Code Person 
Person.java

  package exemple1;

  public class Person {
    private String firstName;
    private String lastName;
    private int age;

    //private boolean vampireState= true;

    public Person(String firstName, String lastName) {
      this.firstName = firstName;
      this.lastName = lastName;
      this.age = 189;

    }

    public Person(String firstName, String lastName, int newAge) {
      this.firstName = firstName;
      this.lastName = lastName;
      this.age = newAge;

    }

    public void becomeOlder() {
      age = age + 5;

    }
    
    public void killVampire () {
      
      age = -150;
    }
   
    public String getFirstName() {
      return firstName;
    }

    public String getLastName() {
      return lastName;
    }

    public Person withFirstName(String firstName) {
      return new Person(firstName, lastName);
    }

    public Person withLastName(String lastName) {
      return new Person(firstName, lastName);
    }

    public boolean equals(Object o) {
      if (this == o) {
        return true;
      }
      if (o == null || getClass() != o.getClass()) {
        return false;
      }
      Person person = (Person) o;
      if (firstName != null ? !firstName.equals(person.firstName) : person.firstName != null) {
        return false;
      }
      if (lastName != null ? !lastName.equals(person.lastName) : person.lastName != null) {
        return false;
      }
      return true;
    }

    public int hashCode() {
      int result = firstName != null ? firstName.hashCode() : 0;
      result = 31 * result + (lastName != null ? lastName.hashCode() : 0);
      return result;
    }

    
}

2.2 Book Class

Here, the Book class represents a book with a title, pages and others.

Code Book 
Book.java

  package exemple1;

public class Book {

    private String title;
    private int pages;
    private String ISBN;
    private Author author;

    public Book(String title, int pages, String iSBN, Author author) {
        // super();
        this.title = title;
        this.pages = pages;
        ISBN = iSBN;
        this.author = author;
    }

    public int getPages() {
        return pages;
    }

    public void setPages(int pages) {
        this.pages = pages;
    }

    public Author getAuthor() {
        return author;
    }

    public void setAuthor(Author author) {
        this.author = author;
    }

    @Override
    public String toString() {
        return "Book [title=" + title + ", pages=" + pages + ", ISBN=" + ISBN + "]";
    }

}

2.3 Student Class

Here, the Student class represents a student with a name, age and others.

Code Student 
Student.java
package exemple1;

import java.util.ArrayList;

public class Student extends Person {

    public String university;
    public Car car;
    public ArrayList<Book> books;
    //1
    //public ArrayList<Book> books = new ArrayList<Book>();
    public Student(String firstName, String lastName, int age, String university) {
        super(firstName, lastName, age);
        this.books = new ArrayList<Book>();
    }

    public void addBook (Book booktoaddtoarray) {
        this.books.add(booktoaddtoarray);       
    }


    public ArrayList<Book> getBooks() {
        return books;
    }

    public void setBooks(ArrayList<Book> books) {
        this.books = books;
    }
    
    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }

    @Override@Override
    public boolean equals(Object obj) {
        if (this == obj)
            return true;
        if (obj == null)
            return false;
        if (getClass() != obj.getClass())
            return false;
        Student other = (Student) obj;
        if (age != other.age)
            return false;
        if (name == null) {
            if (other.name != null)
                return false;
        } else if (!name.equals(other.name))
            return false;
        return true;
    }
        result = prime * result + age;
        result = prime * result + ((name == null) ? 0 : name.hashCode());
        return result;
    }

}

2.4 Car Class

Here, the Car class represents a car with doors, places and other attributes.

Code Car 
Car.java
package exemple1;

public class Car {
    
    public int doors;
    public int seats;
    public String color;
        
    public Car(int doors, int places, String color) {
        this.doors = doors;
        this.seats = seats;
        this.color = color;
    }

    @Override
    public String toString() {
        //return "Car [toString()=" + super.toString() + "]";
        return "Car [doors=" + this.doors + ", seats=" + this.seats + ", color=" + this.color + "]"
    }
}

2.5 Author Class

Here, the Author class represents an author with a … and others.

Code Author 
Author.java

package exemple1;

public class Author extends Person {

    public Author(String firstName, String lastName, int age, String genre) {
        super(firstName, lastName, age);
        public String genre;
        // TODO Auto-generated constructor stub
    }

}

3 Eclipse IDE UML

UML Person - Student - Author and Car

UML Person - Student - Author and Car





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