//#13
//Reads N days worth of stock prices,and spits out the highest increase.
//Created 6/30/03, 8:38 PM
 
class StockWatcher
{
	public static void main (String args [])
	{
		double today = 0.00; //price of stock today
		double yesterday; //price of stock yesterday
 
		//EDIT "days" TO CAHNGE THE AMOUNT OF DAYS YOU WANT THE PROGRAM TO ANALYZE. Default is 10
		final int days = 10;
 
		double everything = 0.00; // sum of everything
 
		boolean goingup = true; //t/f value when price goes up. Original default at t
 
		double highest = 0.00; //current highest value
 
		double yhighest = 0.00; //highest from yesterday
 
		double uberhighest = 0.00; //overall highest value
 
		double minusdays = 0.00; //today - yesterday
 
		System.out.println ("Welcome, day trader.");
 
		System.out.println ("Enter values for " + days + " days worth of stock.");		
 
		for (int i = 1; i <= days; i++)
		{
			yesterday = today; //remember's the price from yesterday
 
			today = SavitchIn.readDouble(); //collects today's value
 
			everything += today; //changes value of price to keep updated
 
			if (today < yesterday)
			{
				goingup = false;
			}
			if (today > yesterday)
			{
				minusdays = (today - yesterday);
				if (minusdays > highest)
				{
					uberhighest = minusdays;
				}
			}		
		}
		System.out.println ("The highest difference between the stock values was $" + uberhighest + ".");
	} 
}