public enum MarkRange
{
    FIRST(0, 29),
    SECOND(30, 39),
    THIRD(40, 69),
    FOURTH(70, 100);

    private int minimum;
    private int maximum;
    private int students;

    MarkRange(int minimum, int maximum)
    {
        this.minimum = minimum;
        this.maximum = maximum;
    }

    public int getMin()
    {
        return minimum;
    }

    public int getMax()
    {
        return maximum;
    }

    public int getStudents()
    {
        return students;
    }

    public void setStudents(int i)
    {
        students = i;
    }

    public String getStarString()
    {
        String stars = "";
        for(int i = 0; i < students; i++)
            stars += "*";

        return stars;
    }

    public String toString()
    {
        return minimum + "-" + maximum;
    }
}