package opgave1;

import java.util.Scanner;

public class Hoofd {

	public static void main(String[] args) {
		Group students = createGroup();
		fill(students);
		change(students);
	}

	private static void change(Group students) {
		System.out.println("De groep bevat nu: \n" + students.toString());
		System.out.println("Please enter a student's number, as well as their new"
				+ "first and last name, separated by commas");
		Scanner scanner = new Scanner(System.in);
		String[] results = scanner.nextLine().split(", ");
		if (Integer.parseInt(results[0]) >= 0) {
			students.setName(Integer.parseInt(results[0]), results[1], results[2]);
			change(students);
		}
	}

	private static void fill(Group group) {
		Scanner scanner = new Scanner(System.in);
		for (int i = 0 ; i < group.getSize() ; i++)
		{
			System.out.print("Please enter a first name, last name, and number for group member number " + i
			+ ", separated by commas");
			String[] results = scanner.nextLine().split(", ");
			Student s = new Student(results[0], results[1], Integer.parseInt(results[2]));
			group.add(s);
		}

	}

	private static Group createGroup() {
		Scanner scanner = new Scanner(System.in);
		System.out.println("How large a group of students would you like to make?");
		int size = scanner.nextInt();
		Group result = new Group(size);
		return result;
	}

}