import java.util.*;

public class GradeBook
{
	public static void main(String[] args)
	{
		Scanner keyboard = new Scanner(System.in);
		int grade;
		int choice;
		int index = 0;
		int[] gradebook = new int[10];

		System.out.println("**********GradeBook Menu**********");
		System.out.println("  1.  Enter grade (-99 to return to menu)");
		System.out.println("  2.  Class average");
		System.out.println("  3.  Class Maximum");
		System.out.println("  4.  Class Minimum");
		System.out.println("  5.  Exit");
		System.out.println("\n\n");
		System.out.print("  Enter your choice:  ");

		choice = keyboard.nextInt();

		switch(choice)
		{
			case 1:
				grade=choice;
				while(grade != -99)
				{
					gradebook[index] = grade;
					index++;
					grade = keyboard.nextInt();
				}
				break;
			default:
				break;
		}
	}
}