import java.util.*;

public class ProgProj3
{
	public static void main(String[] args)
	{
		final Scanner keyIn = new Scanner(System.in);
		double sum = 0;
		double nextNum = 0;
		double max = keyIn.nextDouble();
		double min = max;
		double next = 0;
		int amountOfNumbers = 0;
		String answer;
		
		do
		{
			System.out.println();
			System.out.println("Please enter in a list of numbers");
			System.out.println("ending the list with a negative number.");
			
			while (next >= 0)
			{
				next = keyIn.nextDouble();
				nextNum = next;
				if (next > max)
					max = next;
				if (next < min)
					min = next;
				
				sum = sum + nextNum;
				amountOfNumbers++;
				next = keyIn.nextDouble();
				nextNum = next;
			}
			
			if (amountOfNumbers > 0)
				System.out.println("Your average is: " + (sum/amountOfNumbers));
			else
				System.out.println("No numbers to average!");
			System.out.println("Your highest number is: " + max);
			System.out.println("Your lowest number is: " + min);
			System.out.println();
			System.out.println("Would you like to try again?\n Type \"yes\" or \"no\".");
			answer = keyIn.nextLine();			
		} while (answer.equalsIgnoreCase("yes"));
		
	}
}

2.			       next = keyIn.nextDouble();
				nextNum = next;
				if (next > max)
					max = next;
				if (next < min)
					min = next;
				
				sum = sum + nextNum;
				amountOfNumbers++;
1. 			       next = keyIn.nextDouble();
				nextNum = next;

double max = keyIn.nextDouble();