4.4 - School

import java.util.*;

public class Main {

	public static void main(String[] args) {
		Scanner scan = new Scanner(System.in);
		String n = scan.nextLine();

		Teachers tch1 = new Teachers("Boril Spasov");
		Teachers tch2 = new Teachers("Nikolai Emilov");
		Teachers tch3 = new Teachers("Rocky Balboa");
		tch1.subjects.add(new Subject("Maths", 40, 13));
		tch2.subjects.add(new Subject("English", 30, 20));
		tch3.subjects.add(new Subject("Physical Education", 20, 10));

		Students st1 = new Students("Kiril Ivanov", 14);
		Students st2 = new Students("David Emilov", 18);
		Students st3 = new Students("Katq Rumenova", 19);
		Students st4 = new Students("Rosica Naidenova", 5);

		Classes c1 = new Classes("Maths Class");
		c1.teacher.add(tch1);
		c1.students.add(st1);
		c1.students.add(st3);

		Classes c2 = new Classes("English Class");
		c2.teacher.add(tch2);
		c2.students.add(st1);
		c2.students.add(st4);

		Classes c3 = new Classes("Physical Education Class");
		c3.teacher.add(tch3);
		c3.students.add(st2);
		c3.students.add(st4);

		if (n.equalsIgnoreCase("Maths Class")) {
			c1.printClass();
			c1.printTeach();
			c1.printStud();
		} else if (n.equalsIgnoreCase("English Class")) {
			c2.printClass();
			c2.printTeach();
			c2.printStud();
		} else if (n.equalsIgnoreCase("Physical Education Class")) {
			c3.printClass();
			c3.printTeach();
			c3.printStud();
		} else {
			System.out.println("There is no classes like this!!");
		}

	}

}
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public class Subject {

	private String name;
	private int lessons;
	private int ex;

	public String getName() {
		return name;
	}

	public Subject(String name, int lessons, int ex) {
		this.name = name;
		this.lessons = lessons;
		this.ex = ex;
	}

}
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import java.util.*;

public class Teachers {

	private String name;
	public ArrayList<Subject> subjects = new ArrayList<Subject>();

	public String getName() {
		return name;
	}

	public Teachers(String name) {
		this.name = name;
	}

}
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import java.util.*;

public class Classes {

	private String name;
	public ArrayList<Teachers> teacher = new ArrayList<Teachers>();
	public ArrayList<Students> students = new ArrayList<Students>();

	public Classes(String name) {
		this.name = name;
	}

	public void printStud() {
		System.out.println("\nStudents");
		for (Students s : this.students) {
			System.out.println("Name: " + s.getName() + " " + s.getNum());
		}
	}

	public void printTeach() {
		System.out.println("\nTeacher");
		for (Teachers t : this.teacher) {
			System.out.println("Name: " + t.getName());
		}
	}

	public void printClass() {
		System.out.println(this.name);
	}

}
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public class Students {

	public Students(String name, int num) {
		this.name = name;
		this.num = num;
	}

	private String name;
	private int num;

	public String getName() {
		return name;
	}

	public int getNum() {
		return num;
	}

}

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