public static void main(String[] args) {

		int testscore = 0;

		int a = 0;
		int b =0;
		int c = 0;
		int d =0;
		int f=0;
		int count = -1;
		double total =0;



		while(testscore !=999)
		{
			if(testscore > 90)
			{
				System.out.println("A");
				a++;
			}
			if(testscore > 79 && testscore < 90)
			{
				System.out.println("B");
				b++;
			}

			total += testscore;
			count++;
			System.out.println("Pleace enter a test score");
			testscore = scanner.nextInt();


		}//while
		total /= count;
		System.out.println("Average is :" + total);
		System.out.println("Number of A's: "+ a);
		System.out.println("Number of B's: "+ c);
		System.out.println("Number of C's: "+ d);
		System.out.println("Number of D's: "+ d);
		System.out.println("Number of F's: "+ f);

	}