public String toString()
	{
		StringBuilder sb = new StringBuilder();
		int i = 1;
		sb.append("    ID : " + id);
		sb.append("\n  Name : " + name);
		sb.append("\nGrades : ");

		if(grades != null)
			for(double q : grades)
				sb.append("\n Grade " + (i++) + " : " + q);
		else
			sb.append("\nNo grades registered");

		sb.append("\nGPA : " + gpa);

		return new String(sb);
	}