C++

Forum

Beginners - March 2017 (Page 6)

How to have classes working together

I'm getting error codes - Line 20 - error: 'text_output' was not declared in this scope Line 28 - error: 'class B' has no member named 'change_class' Line 26...

Mar 27, 2017 at 1:40am

[8 replies] Last: I also don't know about static and why the second option works http:... (by gunnerfunner)

by jen23il

Returns not working - Telephone Assignment

Having problems here. I've been trying to work this out on my own for the last several days but it' just not working. I need this code to check my if statemen...

Mar 27, 2017 at 1:39am

[1 reply] : Alright - I can get the if statements to check but I don't know how to... (by jen23il)

by bmakloski

Dynamic Arrays of Students

Hi! I'm a little stuck in this project I am trying to program that acts as a class roster. My plan was to create a class with the variables name, numClasses, an...

Mar 27, 2017 at 12:09am

[6 replies] Last: A vector IS a dynamic array, a fixed-sized array and a vector both ord... (by closed account E0p9LyTq)

by rcwade93

Coin Class Issue. Unable to get correct read out.

I am having an issue with my program. The object is for two coins to be flipped simultaneously and to have the user guess beforehand whether the coins will be e...

Mar 26, 2017 at 11:07pm

[6 replies] Last: Thank you very much I appreciate the assistance. (by rcwade93)

by TommyGun4

Errors in Code

There are errors in my code at lines 37 and 40 and i'm not sure how to fix them/ what I did wrong #include <fstream> #include <iostream> #include <math....

Mar 26, 2017 at 10:44pm

[2 replies] Last: I just updated the code but it still doesn't work #include <fstream... (by TommyGun4)

by val24

Doubly Linked List Node Deletion

Hello everyone, I'm having problems with deletion of a single node within a linked list. I have a populated list. When I delete my target node, my code deletes ...

Mar 26, 2017 at 10:31pm

[8 replies] Last: HAH! A damn semicolon. Well that's something I didn't know would happe... (by val24)

by ccwtree11

Why am I only returning 1?

I've pasted my entire code (minus the header), but the focus is simply lines 130 onward in both files.. Basically I'm creating an Initial Value Problem solver, ...

Mar 26, 2017 at 9:39pm

[1 reply] : Hello ccwtree11, I noticed that you started your question with a gree... (by Handy Andy)

by nicoleb

Help with a for loop?

I need help writing a for loop. For example, let's say the code has the user enter the number of times it needs something to loop, so how do I set up the code s...

Mar 26, 2017 at 8:37pm

[3 replies] Last: No problem. Learning everything takes time (by bmakloski)

by bmakloski

Help with Overloading Operators for Polynomial Class?

Hi, I am trying to write a program that can add, subtract, and multiply polynomials with my class type polynomial . In order to do this, I need to overload the...

Mar 26, 2017 at 8:08pm

[2 replies] Last: I didn't know this was a double post, this is where my program current... (by bmakloski)

by Angel1

least Common Denominator somewhat works

hi guys, i have a problem when i insert two numbers that are negative , the answer is zero. i know that no matter if its negative, it is always positve LCD. he...

Mar 26, 2017 at 6:33pm

[6 replies] Last: Alright I understand, thank you guys. (by Angel1)

by patrick58d

Runtime Vector Error

Hello all, I am trying to create a vector of integers of random size, and random numbers. I have it working nicely when not nested within its own function. W...

Mar 26, 2017 at 3:47pm

[2 replies] Last: Thanks so much for your help! I made a temporary vector within SystemD... (by patrick58d)

by Ponvo

How can I implement templates here?

Hello guys, I am currently working on an assignment that is due in 3 days. The program is supposed to make two matrices to perform arithmetic on them. I have ma...

Mar 26, 2017 at 3:15pm

[5 replies] Last: Consider using std::valarray<> to implement numeric operation on mat... (by JLBorges)

by bird1234

how to edit particular data in file

i have this data in my file 1234 Alex 4th 3 1235 Sam 4th 3 1233 Salman 4th 3 i wanted to change the semester of sam what should i d...

Mar 26, 2017 at 2:43pm

[1 reply] : you'll find some ideas below but the best way would be to read the inp... (by gunnerfunner)

by Angel1

Case doesnt work

hi guys , just wondering why doesnt case 4 run in the program. Can you please help me by pointing at the problem and what is the correct structure. case 3:co...

Mar 26, 2017 at 2:42pm

[11 replies] Last: Im doing almost the exact same problem how did you do case 5? this is ... (by cantgetrignt)

by bird1234

cannot find data in the file

is anything wrong with my code void display() { bool check = true; ifstream file; file.open("file.txt", ios::in); string name, semester, id, ...

Mar 26, 2017 at 2:08pm

[1 reply] : ouh i fix it i don't need to use cin.ignore() , file.ignore(); (by bird1234)

by tayloras96

Using structs and Reading from file

I am creating a simple address book that reads a file and allows user to search by name, phone, or address. My code is not outputting the correct results. The p...

Mar 26, 2017 at 2:07pm

[5 replies] Last: Thanks for all of your help! (by tayloras96)

by Troix

Calculate time difference

Hello! I would like to calcualte the time difference: #include <iostream> #include <chrono> int main() { using std::chrono::system_clock; ...

Mar 26, 2017 at 12:40pm

[1 reply] : http://en.cppreference.com/w/cpp/chrono/duration (by closed account 48T7M4Gy)

by closed account zbX9z8AR

Matrix help!

I keep getting a segmentation fault with this code. Help is appreciated. #include <iostream> #include <stdlib.h> using namespace std; void printMat...

Mar 26, 2017 at 12:08pm

[2 replies] Last: Gearmaster I run your code in Visual Studio, and I can shows that you... (by xxvms)

by seutaclarice

Error with void

I am a beginner in C++ and I am attempting to write a code. However, after writing the code I was told that there is an error stating "error: variable or field ...

Mar 26, 2017 at 7:27am

[2 replies] Last: omg thanks a lot >< that's such a silly mistake from me. >< Thanks! (by seutaclarice)

by nico144

What's wrong with my code

The question is. When Robin's new baby was born, she opened a savings account with $1,000.00 On each birthday, starting with the first, the bank added an addit...

Mar 26, 2017 at 6:02am

[3 replies] Last: lvalue required as left operand of assignment We can't say without... (by mbozzi)

March 2017 Pages: 1... 4 567 8... 36

Archived months: [feb2017] [apr2017]

This is an archived page. To post a new message, go to the current page.

Registered users can post in this forum.