CSCE 150A - Problem Solving Using Computers Laboratory - Spring 2009
Lab Assignment 10 - 04/02/2009
Name:
Section: 8:00 11:00 12:30 6:30
Problem 1: String Manipulation
For this problem, you will create a file stringtest.c and write the main method to perform the following
actions. (Hint: after each bullet, compile and run your program to be sure your code is correct to that point.)
•Create a string buffer of size 100.
•Input a string from the user using scanf
•Convert all lower-case letters to upper-case by using a for loop, and doing the following at each
iteration:
1. Check if the character value is between ’A’ and ’Z’
2. If so, add (’a’-’A’) to that position (convert to lowercase).
3. Otherwise, check if the character value is between ’a’ and ’z’.
4. If so, add (’A’-’a’) to that position (convert to uppercase).
5. Characters that do not fit in these intervals can be ignored.
•Print the string using printf.
Sample Input/Output (the user types any numbers following a colon)
Give me a string: Hello!
Your converted word: hELLO!
