Example Dialog

The program is not as user friendly as we would like. It insists that the user enter exactly "y" to continue. This problem could be fixed with a few extra statements. But let's not. Here is a sample user dialog with the program:

C:/users/default/JavaLessons/chap18>java EvalPoly

Enter a value for x:
-1
The value of the polynomial at x = -1.0 is :-26.0

continue (y or n)?
y
Enter a value for x:
1
The value of the polynomial at x = 1.0 is :-4.0

continue (y or n)?
y
Enter a value for x:
1.178
The value of the polynomial at x = 1.178 is :-0.008209736000004852

continue (y or n)?
yes

C:/users/default/JavaLessons/chap18>