How do I make user input a set of text and using the text which has only alphabet letters
1)how would I read the text and move each letter to the next changing the value of the text?
For example the letter a would change to b and b would change to c etc.
I suggest that you focus on the "move each letter" part first, e.g., write a function:
You can hard code a test in your main function, e.g., looping over a string consisting of the entire English alphabet and calling nextLetter for each character.Code:char nextLetter(char c);
Consider what should happen for 'z' and 'Z'. Consider also that in ASCII and its derivatives, the letters of the English alphabet are contiguous in value, though this is not actually guaranteed, but maybe with such a simplifying assumption it would be fine.
Look up a C++ Reference and learn How To Ask Questions The Smart WayOriginally Posted by Bjarne Stroustrup (2000-10-14)
I am currently trying to make a simple encryption program so I would need an array with the alphabet letters and another array to change the text to the different letters. The program will change the string entered and change each character to the next letter e.g 'a' would change to 'b' and 'd' would be 'e' etc. Can someone please help
So, have you tried starting with what I suggested? Once you have a working nextLetter function, you can then write another function that calls nextLetter, e.g.,
After you have these working, perhaps you could take another step to encrypt with a key, e.g., modify nextLetter and encrypt to:Code:void encrypt(char *text);
where in the original version a key value of 1 was implied.Code:char nextLetter(char c, int key); void encrypt(char *text, int key);
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