Homework 8:

Short Description:

This assignment is worth 10 points.

Goals

• Be able to use pipes to communicate with a process

Formal Description

1. Write a program that reads in an integer, converts that integer to a value between 0 and 19 using mod functions, and returns the string associated with the given integer. This program should be called EightBall. The answer it returns should correspond with those listed on this page.

   For Example

   % EightBall
   0
   It is certain.
   % EightBall
   19
   Very doubtful.
   % EightBall
   20
   It is certain.
       

2. Write a second program called EightBallInterface. This program should
   • Read in a string
   • If the string is "QUIT" exit, otherwise
   • Compute the "value" of the string by summing all of the letters in the string (a=0, b=1,...)
   • Call the EightBall program with the sum of the letters.
   • Print out the value EightBall Returned
   • Repeat

Notes

Submission