/**
 * Loop with complicated exit condtion
 * @author Pete Nordquist
 * @version 100114
 */
public class W03N01
{
	public static void main(String[] args)
	{
		// Example:
		// Write a loop that reads and accumulates numbers until the 
		// the user enters 10 numbers, or 
		// the user enters a negative number.
		// print the sum at the end
		
		// count number of times through the loop
		int counter;
		// the current sum
		double accumulator;
		// value read from user
		double userValue;
		counter = 0;
		accumulator = 0.0;
		// initialize userValue with a value that will get us into the loop
		// the first time
		userValue = 0.0;
		// start loop
		// enter loop as long as userValue not negative or counter < 10
		while (userValue >= 0.0 && counter < 10)  
		{
			System.out.print("your number> ");
			userValue = TextIO.getlnDouble();
			
			// accumulate and count only if the user entered a good value
			if (userValue >= 0)
			{
				// add the value read to the acculator
				accumulator = accumulator + userValue;
				// increment counter
				counter = counter + 1;
			}
		}
		System.out.println("Accumulated sum is " + accumulator);
	}
}