[daveyp225]

Hello, I'm working on a project for my C++ class..

I'm writing a program that performs various calculations that the user would want to perform, and at the end, ask if they want to perform another calculation.

The loop works great, but the second time around (if they decide to have another calculation) it seems to skip the part where it asks the user for input and uses the information from the previous calculation. The user input that it skips is:

cin >> num1 >> char1 >> num2 >> char2 >> num3 >> char3 >> num4;


Any suggestions on what I could be doing wrong?

[daveyp225]

I didn't reset the checksum boolean for the loop..
Stupid mistake on my part..

Thanks anyway!

[daveyp225]

I'm not too good with user-friendly directions.. and quite frankly, i lack good vocabulary skills...

I'm trying to tell someone to input two fractions and I will add/subtract/multiply/divide them...

For example they will input: 1/3 * 3/5.. and i will find the answer...
How would I go about telling them what to do and make sense at the same time.
The best I could come up with is "enter a fractional computation and this program will compute it"
lol.. i dont even think that makes sense..

anyone with good programming-like vocabulary wanna help?

[AlbertB]

If I am correct I think you are inputting your data in the following format.

cin >> num1, fraction1 TOP >> char1, "/" >> num2, fraction1 BOTTOM >> char2, operator, ( + _ * / ) >> num3, fraction2, TOP >> char3, "/" >> num4, fraction2 BOTTOM;

Hope this is correct.

Professional looking but user friendly stuff is always best kept in simple but correct language. So just split it into small chunks and and say it how you mean.

Remember that you do not need all of the characters inputted in the right order. If you are inputting them individually into temporary variables you can have them offered in the most logical order from the users perspective and just do the concatenation, (joining), of the individual characters invisibly afterwards in whatever order you need.

Likewise you do not need the user to input the " / " characters, which I am assuming are your char1 and char3 variables. You already know what these should be.

So try something like:

cout << "You are asked to input the numbers making up 2 fractions," <<
        << endl << "and the mathematical action you wish me to perform with them."
        << endl << "Please enter the required character then <RETURN>"
        << endl << endl;

cin    >>  "Fraction 1, TOP, ( ?/- ) :  " >> num1
        >> "Fraction 1, BOTTOM, ( -/? ) :  " >> num2
        >> "Fraction 2, TOP, ( ?/- ) :  " >> num3
        >> "Fraction 2, BOTTOM, ( -/? ) :  " >> num4
        >> "Mathematical action to perform, (+ - * /):  " ;

This sort of approach should make it clear what you want and is flexible for your data manipulation afterwards.

[daveyp225]

Thanks a lot, youve been a big help!

[AlbertB]

You're very welcome Davey, nice to know it was useful.

Rest assured that as your problems get more complex there is always someone here who can and will help you.