CPS 100E: Groupwork # 1:
Numbers in English and Talking Cash Registers
Write Group Member Names in the space below
Overview
Form groups of size 3-4 persons.
DO NOT WORK ALONE.
Start this group
activity by introducing each member of the group. One group member
should be the scribe, this person is responsible for recording the
group's endeavors. You'll need to turn in a writeup for the group
activity, the scribe is responsible for writing each group member's
name on the writeup.
You'll work some on the last part of what we did in lab
on Thursday, September 5 (Lab 1). You'll also think about
how to modify the program numtoeng.cc in a different way
than what is required for the lab.
Looping for Input
The function main() from numtoeng.cc is reproduced
below. Write a new version of the function that repeatedly prompts the
user for a number and prints the number in English. The loop should
stop when the number entered is outside the range [0..99] (this is from
today's lab). Write constant definitions for 0 and 99 rather than using
numeric literals. Sketch your loop solution in the space below the code.
<![CDATA[
int main()
{
int number;
cout << "enter number between 0 and 99: ";
cin >> number;
cout << number << " = " << NumToString(number) << endl;
return 0;
}
]]>
Speaking Numbers
Assume there is a function with the prototype below that will "speak"
a number represented as a string using a computer's speaker. This might
be used for a talking cash register or for speaking phone numbers
automatically when using directory assistance.
<![CDATA[
void SpeakNumber(string number)
// precondition: number is the English equivalent of 1,2, ..., 16, 30, 40
// i.e., "two", "sixteen", "thirty"
// postcondition: sound is generated to speak number
]]>
Describe in a few sentences what functions in numtoeng.cc need
to be modified and how to modify them so taht the function
SpeakNumber is used instead of using cout <<
... to print the numbers.