chore: create task version of exercise

src/dormitory/App.java

-package dormitory;
-
-import java.util.ArrayList;
-
-public class App {
-
-	public static void main(String[] args) {
-		SharedFlat flat1 = new SharedFlat(2);
-		SharedFlat flat2 = new SharedFlat(3);
-		
-		ArrayList<SharedFlat> flats = new ArrayList<>();
-		flats.add(flat1);
-		flats.add(flat2);
-
-		Dormitory dorm = new Dormitory(flats);
-		
-		Student student1 = new Student("Abe", "WIB");
-		Student student2 = new Student("Bob", "WIB");
-		Student student3 = new Student("Joe", "BIO");
-		Student student4 = new Student("Kay", "MED");
-		Student student5 = new Student("Jim", "BWL");
-		Student student6 = new Student("Tom", "MKI");
-		
-		flat1.addStudent(student1);
-		flat1.addStudent(student2);
-		flat2.addStudent(student3);
-		flat2.addStudent(student4);
-		flat2.addStudent(student5);
-		flat2.addStudent(student6);
-		
-		System.out.println("Names of students in the dormitory: " + dorm.getStudentNames());
-		System.out.println("Number of students living in the dormitory: " + dorm.numberOfStudents());
-	}
-
-}

src/dormitory/Dormitory.java

-package dormitory;
-
-import java.util.ArrayList;
-
-public class Dormitory {
-
-	private ArrayList<SharedFlat> flats;
-
-	public Dormitory() {
-		flats = new ArrayList<>();
-		flats.add(new SharedFlat());
-	}
-
-	public Dormitory(ArrayList<SharedFlat> flats) {
-		this.flats = flats;
-	}
-
-	public int numberOfStudents() {
-		int number = 0;
-		for (SharedFlat flat : flats) {
-			number += flat.getNumberOfStudents();
-		}
-		return number;
-	}
-
-	public ArrayList<String> getStudentNames() {
-		ArrayList<String> names = new ArrayList<>();
-		for (SharedFlat flat : flats) {
-			for (Student student : flat.getStudents()) {
-				names.add(student.getName());
-			}
-		}
-		return names;
-	}
-}

src/dormitory/SharedFlat.java

-package dormitory;
-
-import java.util.ArrayList;
-
-public class SharedFlat {
-	private ArrayList<Student> students;
-	private int maxNumberOfStudents;
-	
-	public SharedFlat() {
-		students = new ArrayList<>();
-		maxNumberOfStudents = 1;
-	}
-	
-	public SharedFlat(int maxNumberOfStudents) {
-		students = new ArrayList<>();
-		this.maxNumberOfStudents = maxNumberOfStudents;
-	}
-	
-	public ArrayList<Student> getStudents() {
-		return students;
-	}
-	
-	public void addStudent(Student student) {
-		if (students.size() >= maxNumberOfStudents) {
-			System.out.println(student.getName() + " can't move in.");
-		} else {
-			students.add(student); 
-			System.out.println(student.getName() + " moved in!");
-		}
-	}
-	public int getNumberOfStudents() {
-		return students.size();
-	}
-}

src/dormitory/Student.java

-package dormitory;
-
-public class Student {
-	
-	private String name;
-	private String studyProgram;
-	
-	public Student(String name, String studyProgram) {
-		this.name = name;
-		this.studyProgram = studyProgram;
-	}
-
-	public String getName() {
-		return name;
-	}
-
-	public void setName(String name) {
-		this.name = name;
-	}
-
-	public String getStudyProgram() {
-		return studyProgram;
-	}
-
-	public void setStudyProgram(String studyProgram) {
-		this.studyProgram = studyProgram;
-	}
-}