public abstract class Student implements Comparable<Student> {

	protected String name;
	protected double[] grades;
	
	public Student(String name, double[] grades) {
		this.name = name;
		this.grades = grades;
	}
	
	public String getName() {
		return this.name;
	}

	protected double calculate() {
		
		double sum = 0;
		int num = 0;
		
		for(double d:grades) {
			sum += d;
			num++;
		}
		return (sum/num);
	}
	
	public abstract String getGrade();
	
	public int compareTo(Student other) {
		return this.name.compareTo(other.getName());
		
	}
	
	public String toString() {
		return this.name + "\tGrade:" + getGrade();
	}
}