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Beginners - March 2016 (Page 26)

Hints and tips for a little menu class

Still on my quest of creating a nice little console framework for myself. Today I am starting some work to help improve my programs flow of control. I thought a...

[no replies]

by aiiight

Counting Integers program help!

Hi! So I'm a freshman CS major and currently on spring break, and I'd figure I could do a few simple programs in my textbook to practice and try to improve a...

[1 reply] : You are (un)lucky. On line 11 you do declare variable numbers, but do... (by keskiverto)

by MaBunny

Simple Calc: Problem 2

Hey guys,my previous attempt at making a calculator was a dumb,so I started searching the net for some ideas. Interestingly,the one that stood out was using a ...

[3 replies] Last: Why not learn from the experts? Here is a demo from Bjarne Stroustrup ... (by Thomas1965)

by InsanelyNormal

Split string into sentences?

I need a little code to split a phrase/paragraph into sentences. For example: "My house is on fire. That should not be happening." Is splitted into "My hou...

[6 replies] Last: Oh, thakns. That helped. (by InsanelyNormal)

by closed account Sw07fSEw

size_t and hashing

I got carried away and have been reading the pages on std::unordered_map , unordered_map::hash_function and std::hash . I learned from reading the std::h...

[1 reply] : size_t is a type. Like: unsigned or int . It is guaranteed to ... (by cire)

by Idiotal

Expression must have class type error.

#include "stdafx.h" #include <iostream> #include <string> #include <algorithm> char grid ; int main(){ char grid ; int i; int j; for (i = 0; i < 7; i++)...

[8 replies] Last: every time it returns the P back to O again I suggest you separate o... (by Chervil)

by tehHuzzlenut

Printing 3D Arrays

I am about 3 months into learning C++ and am messing around with printing multidimensional arrays. My problem is that I cannot for the life of me figure out why...

[3 replies] Last: Thank you so much! I'll mess around with this more until I get it! (by tehHuzzlenut)

by badw0lf

trying to get out of loop + start a new display

i'm stuck in while loop, i tried doing break; but errors. I have a bunch of while loops because the user has to input 5 scores. If it's not valid, it'll ask for...

[4 replies] Last: ok i changed OS' from Mac (Xcode) to visual studio and it solved my pr... (by badw0lf)

by gameguy8888

How to make a program do something by pressing a key on the keyboard

Let's say I made a program which would display "Hi" when I hit the 'a' key. what line of code should I use to do that? and please explain the concept, thanks...

[1 reply] : You could use GetAsyncKeyState, from <windows.h>, to detect the key as... (by InsanelyNormal)

by halagi

[help] style of object creation in C++

Hello, I met a statement like the following. But I don't know whether the statement of object creation is ok. class Fraction{ private: ...

[2 replies] Last: This is something that often confuses people. Fraction a(); looks a... (by MikeyBoy)

by kyophan

nullptr and delete

This is for my data structure class. The textbook creates a LinkedBag using a Node class. In implementing the remove for the LinkedBag, near the end, they do n...

[1 reply] : So I'm wondering if setting it to nullptr is doing something more. I... (by keskiverto)

by IntellectMeow

Encryption/decrytption program. Files not opening.

Hello everyone, this is my first post to this website. I have a problem with my code that I cant seem to track down. I dont know if my files arent being passed ...

[3 replies] Last: What I suggest is to start simple, and add any other features graduall... (by Chervil)

by ProgMan

hangman

Hello. Im planning to make a hangman game for c++ as my project, i was planning to use txt file for the words and i would like to have a hint on it. Can someone...

[2 replies] Last: but how can i make an option to prompt the user if he wants to have a ... (by ProgMan)

by etrusks

Variadic template function not working

Hi, I want to make this function to check if all the arguments are true but this doesn't work and from compiler warning I can really understand the problem. ...

[5 replies] Last: Tnx man for the information but now I'm not that good with installing ... (by etrusks)

by hissatsu

Please, Help

Hello, I am completely new in programming and I need some help, please. So the thing is I have to make a program which equals that function : f(x)=xe^x and I ne...

[2 replies] Last: I'm apologize about my stupid question, You are right! So the thing is... (by hissatsu)

by Catungal

Function is not calculating my coefficients

Why isn't my my function getRoots not calculating my inputs? #include <iostream> #include <cmath> using namespace std; int getRoots(double a, doubl...

[2 replies] Last: Thank you. This helped a lot. (by Catungal)

by aidenkael

Choosing a random number gives me error in array

My code #pragma once #include <iostream> #include <cstdlib> #include<ctime> class Sentence { private: char *articles ; char *noun ; char *ve...

[2 replies] Last: int r1 = rand() % 6; This will return a value from 0 to 5 , inclusi... (by integralfx)

by aidenkael

MidTerm Exam Question

So I have a question on my midterm that is stumping me; Use the pointer fptr and a for loop to loop through the array of numbers. I tried to do: double n...

[4 replies] Last: If you would like to use the address-of operator (&), you can just do ... (by integralfx)

by vikillav

Reversing a value

I'm reading a list of values from a text file and storing them into a vector. The list of values I read are: 13 21 5 37 15. I'm storing these values in one ...

[2 replies] Last: I would recommend converting each number into a string. This makes it... (by integralfx)

by Catungal

How do I get my main function to switch from case 0 - 2 with my int function?

#include <iostream> #include <cmath> using namespace std; int getRoots(double a, double b, double c, double & s1, double & s2) { double disc = (b*b) - (4 *...

[2 replies] Last: Thank you so much! (by Catungal)

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