Hands On C++: Project 6

course.wilkes.edu/CS125Labs
Welcome to the site for CS 125 labs!

Hands On C++: Project 6

Objectives

1. Practice designing programs that use loops.
2. Practice choosing the appropriate kind of loop for a problem.

Introduction

Your instructor will assign you one of the following projects, each of which uses loops controlled by conditions.

Projects

6.1. Write a program that will read a sequence of numbers from the keyboard, and display the minimum, maximum, average, and range of the entered values. Make the input step "fool-proof".

6.2. Extend calculate.cpp into a six-function calculator, as follows:

Add a factorial() operation that, given an integer n, computes n! = 1 * 2 * ... * (n-1) * n.
Redesign Power() so that it handles negative exponents.

6.3. Write two "graphics" functions:

PrintStripe(n, ch); that displays n consecutive ch characters. (e.g., PrintStripe(5, 'X'); should display XXXXX.)
PrintAlternating(n, ch1, ch2); that displays n consecutive pairs of the characters ch1ch2. (e.g., PrintAlternating(3, 'X', 'Y'); should display XYXYXY.)

Use these functions to write a program that draws a picture, such as a flag. For example, you might use these functions to draw a crude facsimile of the U.S. flag that looks like this:

* * * * * * XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX * * * * * * * * * * * XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX * * * * * * * * * * * XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX * * * * * * * * * * * XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX * * * * * * * * * * * XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Try and draw your picture efficiently (i.e., using loops to minimize the number of statements). Feel free to create additional "graphics" functions.

6.4. Build a "police sketch artist" program as described in Hands On C++: Project 5, but write a dymanic program that lets the user experiment with different combinations of facial parts in a single execution. (Hint: Control the program using a loop. Start with a 'blank' face. Allow the user to modify this face using a two-level hierarchical menu, with the first level allowing the user to select which facial part they want to modify (i.e., a menu of menus), and the second level allowing the user to select from among the choices for that particular facial part.)

Turn In: