WS-02-intro-to-oop/src/CourseRegistrationStarter/RegistrationSystem.java

package CourseRegistrationStarter;
import java.util.ArrayList;
import java.util.Scanner;

public class RegistrationSystem {
    private ArrayList<Course> courses;

    public RegistrationSystem() {
        courses = new ArrayList<>();
    }

    public void addCourseToSystem(Course c) {
        courses.add(c);
    }

    public Course findCourseByCode(String code) {
        for (Course i : courses)
        {
            if (i.getCourseCode().equals(code))
            {
                return i;
            }
        }
        return null;
    }

    public Course findCourseByName(String name) {
        for (Course i : courses)
        {
            if (i.getCourseCode().equals(name))
            {
                return i;
            }
        }
        return null;
    }

    public void showAllCourses() {
        for (Course i : courses)
        {
            System.out.println(i.getCourseName());
            System.out.println(i.getCourseCode());
            System.out.println(i.getCapacity());
        }
    }
}