PASS Week 11: Strings

KAHOOT ANSWERS LINK:

https://pastebin.com/3MVhyWxV




WARMUP (Review from Last Week): Array Reversal

Write a program that creates an array of 5 integer values {1, 2, 3, 4, 5}, and "reverses" it.
You will copy the first array's values into an empty second array, but backwards. Effectively making
the second array a "reverse" of the first.

You will have about 4 loops total. One loop to fill the first array (Array A) with values,
a second loop to print Array A, a third loop to fill the second array (Array B) with A's values backwards,
and a fourth loop to print Array B.

SAMPLE OUTPUT

A: 1 2 3 4 5
B: 5 4 3 2 1
















PROBLEM #1: Taking Multiple Strings and Data as Input

Create a program that will prompt the user to enter string values for their first name, last name, and age.
However, you must take all 3 inputs IN A SINGLE scanf statement. Then print them back out to the user.
First name will be stored in a string, last name will be stored in a second string, and age is a normal integer.

SAMPLE OUTPUT:

Enter in your first name, last name, and age:
Justin Bentley 21
Hello Justin Bentley age 21












PROBLEM #2: Using fgets(), Strings and String Functions

Compose a program that prompts the user to enter 3 separate sentences
as input and store them in 3 separate strings (Each array will be 40 in length).
Then copy/concatenate all 3 sentences into one huge string of length 120.

Prompt the user and use fgets() to read the input into the first array.
Then prompt the user for a second sentence and store it in the second array.
Then do the same again storing a third string into a third array.

Next, use the strcpy() function to copy the first array into the fourth array.
Then use the strcat() function to concatenate the second array to the end of the fourth array.
Then do it again, concatenating the third array into the fourth array.
Then print the fourth array using the %s modifier, and the length using strlen().

SAMPLE OUTPUT:

Enter in your first name: Justin
Enter in your middle name: William
Enter in your last name: Bentley

JustinWilliamBentley

Length is 23















PROBLEM #3: String Reversals

Create a program that will reverse a string
Declare and initialize a string with the value: "This is a sentence"
Then use a loop and the strlen() function and print the string one character at a time backwards.

SAMPLE OUTPUT:
ecnetnes a si sihT


SAMPLE OUTPUT (With the input https://www.youtube.com/watch?v=dQw4w9WgXcQ):

QcXgW9w4wQd=v?hctaw/moc.ebutuoy.www//:sptth













PROBLEM #4: Converting Strings to Uppercase

Compose a program with a character array of 81 characters in size. Also declare
an integer variable to store the size of a sentence later on.

Prompt the user to enter in a sentence up to 80 characters and then store it in the array using fgets().
Get the sizeof() the sentence, and store it in the integer you made earlier.
Now, using a for loop, go through the sentence one character at a time check if they are uppercase using the isupper() function.
If it ISN'T uppercase, then make it uppercase using the toupper() function.
Finally, print out the new string using printf.

Also, remove the carriage return ‘\n’ character from the array if you used fgets() to get the input string.


SAMPLE OUTPUT:

Enter in a sentence: This is a sentence
THIS IS A SENTENCE













PROBLEM #5: Counting Specific Characters in a String

Re-using your solution to problem #4, modify the program to read in a sentence up to 80
characters but this time count the number characters THAT ARE NOT spaces, periods,
exclamation points or commas.

Print out the total and this should be the number of characters that weren't specified.

SAMPLE OUTPUT:

Enter in a sentence: This, is a sentence!
There are 15 characters.