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Beginners - October 2017 (Page 11)

container to hold objects of class type and it's derived types

And was trying to have a vector that could hold any object of class A or it's derived types using pointers. I tried to do: class A { }; class B : ...

[9 replies] Last: If the base class A is a polymorphic type, we can invoke virtual fun... (by JLBorges)

by sadulla93

need help to complete this program please.

If someone can help me to write the program, would really appreciate thanks a lot in advance . Write a program to accept any number of grades. Then, print the ...

[1 reply] : The way this is worded it sounds like it is for some sort of class. Th... (by heintzman)

by mlass7886

converting decimal to 16 bit binary

I am having some issues with this program. I will put the program below and my code. Change your binary conversion program to use the design using iteration...

[2 replies] Last: I have to set it up like this but for some reason the pow is not worki... (by mlass7886)

by beemo

Printing prime numbers

im trying to display prime numbers from 2 to 102 and print out the numbers from 2 to the entered prime number as practice but i dont know what im doing wrong he...

[1 reply] : You have an odd variation: usually the requirement is to display all p... (by Duthomhas)

by closed account jhb7Djzh

Reading integers from file and displaying high and low numbers.

I need to have my program read each integer for a file called "integers.dat" and at the end, display the highest and lowest number. No matter what I change it s...

[4 replies] Last: Yeah I see what you're saying, I don't know why I did that. So if I g... (by closed account jhb7Djzh)

by Tellumendil

Question regarding header and implementation files.

I am a beginner, and I currently am trying to finish a project for a Computer Science class. I did research the archives and actually found someone asking a ...

[6 replies] Last: I figured it out myself. I had to name the formal parameters of the fu... (by Tellumendil)

by RNBW

Why is code ignored?

I do not understand why code is ignored (seems to be skipped over) in the area identified between lines highlighted with //*******************************...

[12 replies] Last: @Chervil I like it! I'll incorporate it in the code. I'm not sure abo... (by RNBW)

by LoneImprover

Help a noob out.

Hello, not long ago I started learning c++ (no programming experiance before that) I am starting off slow and I would like your help. This is my task: Clo...

[5 replies] Last: Is it possible to input your computers time and then add 1 second. If... (by sonar87)

by berrytea

Program that displays odd, even, and reversed digits

Hello, I'm currently trying to make a program that validates user input and displays the digits in the number as odd and even, and also displays the number rev...

[3 replies] Last: I'm currently trying to make a program that validates user input and ... (by Enoizat)

by Tony321

Lambda return type

Hi guys, Here, https://stackoverflow.com/questions/9620098/explicit-return-type-of-lambda I read that: However, if a lambda has one statement and that state...

[2 replies] Last: Here, https://stackoverflow.com/questions/9620098/explicit-return-typ... (by Enoizat)

by closed account 1vf9z8AR

this pointer

i expect the output to be the person's name and his pay. #include<iostream> #include<string.h> //for strcpy() using namespace std; class sales { ch...

[5 replies] Last: > Write a program to show the working of this pointer. Any program wh... (by JLBorges)

by tadinaaawr

menu driven program

I'm trying to create a menu driven program using arrow operators and linked lists to track/update a list of movies. I think I already solved most of the code bu...

[1 reply] : Hello tadinaaawr, I believe you problem starts with lines 41 - 48. L... (by Handy Andy)

by jayiswho

Statement problem in loop

I'm supposed to write a program that checks whenever the number the user inputs (m) exists in the array and outputs its position (a would be in "0"). If m is n...

[2 replies] Last: @repeater Thank you so much, I got my code worked :) (by jayiswho)

by Ch1156

How to use variables in other class members? (1,2)

So I decided to write a game and use classes to better strengthen my class knowledge, and it was going well, however I have one problem I cannot seem to figure ...

[34 replies] Last: ok thanks. What books would you recommend for OO design? (by Ch1156)

by Imtotalnoob

I bought Sams Teach yourself C++

Hello I'm new to this website. I love video games, and I hate working in warehouses. I want to learn how to program so I bought a book called Sams Teach yoursel...

[9 replies] Last: Alas, you have purchased a bad book. SAMS teach yourself books are gar... (by Duthomhas)

by jyccode

Solving Equations with Function Pointers Difficulty

Hey everyone! I'm trying to code a program that is designed to run an infinite for loop that finds the (x, y) coordinate at which two functions intersect. I've...

[1 reply] : You are making the problem twice as difficult as you need. Define a si... (by lastchance)

by Jack816

Problem with dynamic cast

Could someone explain what I'm doing wrong on line 38? I've spent about the last 30 minutes trying to figure out how dynamic_cast works and I just can't figure ...

[1 reply] : > what I'm doing wrong on line 38? Card is not a polymorphic type ... (by JLBorges)

by phantomxman

HELP I am confused by this STl hw question I have.

I have never heard of a STL template. I tried going through the chapter again with no luck because I don't see how any of these could be answers. Since it has n...

[2 replies] Last: No, the answer is A. An “STL” template is any standard object tha... (by Duthomhas)

by phantomxman

HELP for function in C++ hw question

Im pretty sure its a function call since the definition is the body and the prototype just tells the program what it is called and how to execute. But I am not ...

[1 reply] : yes it is a function call (by AndreGS)

by closed account 1vf9z8AR

i merged files using string but error in line 13

error: F:\c++projects\printmerge\printmergefiles.cpp|13|error: no matching function for call to 'std::basic_istream<char>::getline(std::string&, int, char)'| ...

[6 replies] Last: yaaaay it works perfectly now. #include<iostream> #include<fstream> ... (by closed account 1vf9z8AR)

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