Lab Assignment 4

Due: Monday 7/13/2015 by 11:59 pm (i.e. midnight)

Note: Due date is pushed back because of the midterm exam; however, doing this project before the exam should help prepare you for taking the exam. So you should at least start this assignment before the exam!

Write a C++ Program (using only the C+ subset as defined in lecture) that will:

  1. Print out your name
  2. Print out your net-id
  3. Print out CS 107 and Semester information (Summer 2015)
  4. Print our the Assignment Name and Number (Lab Assignment 3)
  5. Print out your lab time (Wednesday at 10am)
  6. Print out the additional information as described below:
Converting to the International Civil Aviation Organization Alphabet

The International Civil Aviation Organization, "ICAO", created its own alphabet where it uses a word for each letter. This is used to help spelling words over noisy or staticy connections. The word for each alphabet is listed in the following table:

  • A - Alfa
  • B - Bravo
  • C - Charlie
  • D - Delta
  • E - Echo
  • F - Foxtrot
  • G - Golf
  • H - Hotel
  • I - India
  • J - Juliet
  • K - Kilo
  • L - Lima
  • M - Mike
  • N - November
  • O - Oscar
  • P - Papa
  • Q - Quebec
  • R - Romeo
  • S - Sierra
  • T - Tango
  • U - Uniform
  • V - Victor
  • W - Whiskey
  • X - X-ray
  • Y - Yankee
  • Z - Zulu
For this assignment, you are towrite a C+ program that will prompt the user to enter a string as input and translate that string into the series of ICAO words that would be used to spell out the word entered. For Example:
  • Hello
would become
  • Hotel Echo Lima Lima Oscar
The code does not distingush between upper and lower case letters. Nor does the code deal with non-letter characters (or at least the part of the code we will worry about for our assignment - the digit 9 becomes "niner" but we wont worry about that).

You should have a single space between each of the ICAO words in the output. If the string entered as input contains non-letters, print these out as a single character but again separated by a single space. For example, if the user entered:

The program should output:
  • India Sierra 9 5 @ Delta 7
The C++ String library has a number of buit in operations to help with this program. Note: the syntax for some of these may seem a bit strange.

To determine the number of characters in a string use the length "method". Length is used as follows:

// get a string from input and print out the number of characters it contains

string str1;

cin >> str1;

int characterCount;

characterCount = str1.length();

cout << "The string: " << str1 << " contains " << characterCount << " characters." << endl;

To determine what character is at what position in a string, use the at "method". At is used as follows:

string str1;

cin >> str1;

char c1;

c1 =;

cout << "The character at the start of the string is: " << c1 << endl;

c1 =; // This assumes the string has at least 5 characters

cout << "The character at the position 4 of the string is: " << c1 << endl;

Remember that the positions in a string range from zero to the length-1.

To determine is a character is a letter or not, the isalpha function in the ctype library can be used. The isalpha function returns a true value if the character given as a parameter is a letter, otherwise it returns false. This can be used as follows:

string str1;

cin >> str1;

char c1;

c1 =;

if ( isalpha( c1 ) == true )

cout << "The first character in the string is a letter." << endl;


cout << "The first character in the string is NOT a letter." << endl;

Submission of the Lab

The lab must be submitted electronically to the Assignment Link for Lab 3 inside of Blackboard. You will only need to submit the C++ source code file (just the ".cpp" file, not the "a.out" file).

You are to name your program file using both your NET-ID and the Lab Number. Thus for Lab 3, if you NET-ID was ptroy4, your program should be named: ptroy4Lab3.cpp

-- Main.troy - 2015-07-08

Topic revision: r1 - 2015-07-08 - 04:47:22 - Main.troy
Copyright 2016 The Board of Trustees
of the University of
Helping Women Faculty Advance
Funded by NSF