Lab 5


  • Due: Saturday, June 5th no later than 11:59pm.
  • Submission instructions: push a commit with the tag lab5 to your git repository.
  • Deadline reminder: after the deadline passes, you cannot earn any points for this assignment. If the deadline is approaching, submit what you have in order to earn partial credit.

Learning outcomes

  • Write a C++ program
  • Create a simple runtime error
  • Work with a vector of strings


You are to write a program in C++ that will take the number given on the command line and write it in words. You must have a separate error function and you must have at least one separate function to translate the digits to words. You must store the words for each digit in a vector. If the number in the tens place is one, throw a runtime error. If any of the numbers entered is 0, throw a runtime error. You can assume the number given will not have more than 4 digits.

Sample output

[p19t655@csci112 lab5]$ ./process 123
Number 123 is written as one hundred twenty three 
[p19t655@csci112 lab5]$ ./process 4375
Number 4375 is written as four thousand three hundred seventy five 
[p19t655@csci112 lab5]$ ./process 5
Number 5 is written as five 
[p19t655@csci112 lab5]$ ./process 14
Oops! Entered a 1 in the tens place
[p19t655@csci112 lab5]$ ./process 440
Oops! Entered a 0 in the number
[p19t655@csci112 lab5]$ ./process 0
Oops! Entered a 0 in the number
[p19t655@csci112 lab5]$ ./process 0141
Oops! Entered a 0 in the number


  • Write your program in a file called lab5.cpp in your csci112-firstname-lastname/labs/lab5/ directory.
  • You must write the program using C++ constructs.

Grading - 100 points

  • 5 points – comments explaining what your program does
  • 5 points – indent your code so it is readable
  • 10 points – compiles successfully
  • 10 points - used a vector to store the words for your number.
  • 10 points – have at least one function beside main
  • 10 points - have an error function that will throw a runtime error with a descriptive message
  • 10 points - pass the input number as a command line argument.
  • 10 points - throw a runtime error if the second digit of the number is a 1.
  • 10 points - throw a runtime error if any digit is a zero
  • 10 points - use cout and cin, not printf and scanf
  • 10 points - match the example output exactly

Grading turnaround

This lab will be graded with scores in Brightspace by 5pm on Monday, June 7th.