51,593 Topics
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| | MY ASSIGNMENT: Write a program that works with fractions. Your program should be able to add, subtract, multiply, and divide two fractions. Specifically, your program must request two fractions from the user, getting the numerator and denominator separately for each fraction, and the operation to perform (add, subtract, multiply, or … |
| | Whenever I run this code the while(b<63) only seems to run once then does nothing. The (a<63) loop runs fine but doesn't go again because the first loop just stops. Any idea what's going on? [CODE]#include <iostream> #include <time.h> using namespace std; int main() { int a,b,c,sand; int land[64][64]; srand((unsigned)time(NULL)); … |
| | This is the question : you are burning some music CDs for a party. You've arranged a list of songs in the order in which you want to play them. However, you would like to maximize your use of space on the CD, which holds 80 minutes of music. So, … |
| | I have this homework in which I have been working on it: but I dont know what im doing wrong :( Could anyone help me: [code]#include <iostream> #include <cstring> using namespace std; class Account { private: char number[8]; char type; char owner[31]; double balance; double interestRate; public: Account() { number[0] … |
 | I have a SQL query where I need to pull email addresses if there is one associated with that row in my table. Depending on how many email addresses are returned could be 1 all the way up to 5 I need to send an email to each of those … |
 | [code] class Security { public: virtual ~Security() {} }; class Stock: public Security {}; class Bond: public Security {}; class Investment: public Security { public: void special() { cout << "Special Investment function" << endl; } }; class Metal: public Investment {}; int main() { Security* s = new Metal; … |
| | Hello, I am having a problem with an assignment that I have to submit tomorrow which is to let a user construct an object. in the assignment it is asked from me to create a DVDshop class where the user can create a DVD object. Also, in this class I … |
| | Write a program that will read in a sentence of up to 100 characters and output the sentence with spacing corrected and with letters corrected for capitalization. In other words, int the output sentence all strings of two or more blanks should be compressed to a single blank. The sentence …  |
| | I'm trying to use a getline function in my program. I have the correct cout function but when I try and enter my input the program keeps wanting me to enter a couple of times and then that's what comes out. I'm very confused on what I'm doing wrong in … |
| | I have written a program that allows for two people to play tictactoe, however it will not work. I am not sure what the problem is. Can some please help? Thank you in advance |
| | Hi I wanted to start a project on implementing packet sniffer. Though I have fairly good experience of C++ programming and network protocols( theoretical), I am not able to get start with this. How should I approach towards it. What libraries or resources should be helpful ? Would Qt be … |
| | Hi All, Please find the below code and please elaborate how derived class default copy constructor is calling base class copy constructor which is implemented by the base class. [CODE]class X { X( const X& x ); } class Y ; public X { } class Z { void fun( …  |
| | I'm a beginner as far as c++ is concernt.I want help using user defind funtions |
| | hello, so im designing a simple prgram which calculates the cost of a ticket you buy. there are only 3 ticket options, namely a b and c. here is my code. [CODE] #include <iostream> using namespace std; const int PRICE = 3; int find(int [PRICE]); int main() { int nums[PRICE] … |
 | [B]Specifications (minimum):[/B] The CDROM class contains the following, private, data members: string Name; // The Name of the CDROM string CDType; // The Type of CDROM float Cost; // The Cost of the CDROM [I]The ONLY recognized (i.e., legal) CDROM types are, “Game”, “Word”, “Compiler”, “Spreadsheet”, “Dbase”, and “Presentation” (AND, … |
| | Im trying to create an object array that accepts values generated by a 2 random functions so that i can sort the objects in the array based on one value of an identifier (finishtime) in each object. eg. twenty Activitys with datamembers [starttime, finishtime, id] my code for the main.cpp … |
| | Hi, ive only started programming recently and as my second assignment i have to write a program that can convert uppercase letters to lowercase letters and visa-versa. i also have to make it stop when a full-stop is entered and count the number of times the program changed letter case. … |
| | Hi, I've got such class template: [CODE=c]template <class Type> class Stack{ private: struct Element{ Type value; Element *prev; } *end; public: Stack(){ end = NULL; } void push(Type value){ struct Element *element = new Element; element->value = value; element->prev = end; end = element; } Type pop(){ if(end != NULL){ … |
| | Greetings from Portugal to everyone. I'm building a project to a course in my university and i've stucked in some compiling error given by NetBeans and g++ in my dynamic array implementation. Glad if someone could give a hand to this. Here is the code [ICODE]#pragma once #include <iostream> #include … |
| | This is a follow-up exercise to the one related to reference and dereference operators. Stroustrup asks the reader to modify that program to handle an array overflow. He wants us to specifically use the realloc() function. I read the tutorial here but didn't understand the example. I read other web …  |
| | Here's my main [code=c++] int main () { int list1[3] = {5,5,6}; int num = 3; int result; int *arr = list1; int maxVar; int *maxVarHolder; maxVarHolder = &maxVar; result = sumarr(*arr, num, *maxVarHolder); return 0; } [/code] Here's the function header: [code=c++] int sumarr (int *arr, int size, int …  |
| | I need the program to read 2 pieces of data from each line of a text. For example my txt is: [code] A Garbage B Garbage2 A Garbage3 A Garbage4 A Garbage5 B Garbage3 B Garbage [/code] Now IIRC the getline function breaks after the first space. The program is …  |
| | Im trying to write a code for a class that has 20 activities .. each activity has a start time and a finish time. When i try to generate the times the start time is larger than the finish in some cases. can any one help me with my function …  |
| | Anyone that develops GUI applications in C++ will definitely be familiar with the C++ <windows.h> class. However, I am wondering who wrote this vast class? |
| | Hey all, I need to initialize an array to hold an image to all zeroes. The dimensions are that of an image [numcols][numrows][3], where 3 is for rgb values. I know this isn't necessary when I'm reading an image into the array, of course, but I'm going to be using … |
 | Ok, the problem is this - plenty of code, many times called, probability of raising exception is about 1e-5. From many reasons is not possible to serialize params into string just for the case that exception would be raised. Is there possible to save *values* of params *generically* just from … |
| | Hello guys, this is my first post, so don't be harsh if I do something stupid. Well, the reason why I'm posting here is because I need to find a method to alter the stream itself, not just the buffer I send to a variable with "file.Read(". For example, lets … |
| | I need to write a program to decipher a code and process a set of characters in a text file. this is the text file: >EBC;Iit_is a CaPital Mistake tO_theorize Before_one has DatA123. There are 6 encrypted characters at the beginning of the file. The encryption is based on the … |
| | [CODE] #ifndef LexA_H #define LexA_H #include <iostream> using namespace std; class LexA { public: int charClass, lexLen, token, nextToken; char lexeme[100], nextChar; private: char character; public: LexA(); void setChar(char); void addChar(); void getChar(); void getNonBlank(); int lex(); int lookup(char); #define int_lit 10; #define ident 11; #define assign_op 20; #define add_op … |
| | I have created class menu and class number. I would like that my functions in class do sum, subtract, multiply, and divide. I've done sum, but I have problems with other functions. When I do difference, it is actually sum my numbers, and result of multiplication and division is 0 … |
| | Hi all, I am senior in high school and I am currently taking computer science classes in which we are learning C++. I understand the most basic implmentations of C++ fundamentals. I am seeming to have a lack of full understanding with heaps. I have borrowed several books in the … |
| | Hey so I wrote this blackjack program to read from file but i'm getting these errors on the specified lines: Error 1 error C2059: syntax error : 'while' line: 46 Error 2 error C2228: left of '.ins' must have class/struct/union line: 48 Error 3 error C2050: switch expression not integral … |
| | Hi all, It is my first post in this forum.So plz help me, to continue. I face some problem about class function. How i use a function value to another function. Anybody knows how to solve this problem, plz help me. Thank's Sohel Rana |
| | I am needing to edit this client/server echo program into a client/server talk application, to send messages back and forth between the client and server, rather than have the client echo the message only. So the output would be: C: Hello S: Hello S: How are you? C: How are … |
| | Hi there, im new to the site and am hoping someone out there can help me with my question, im pretty newbie in the world of c++ and programming in general. Im making a program with a menu, you can choose between entering a number yourself to be tested as … |
| | Hello, i'm a newbie with c++.. all help and explanation are welcome..my problem is, i try to make a factorial program in c++ . Here is my code: [CODE]#include <iostream> using namespace std; int main() { int a,b,fact=1; char key; do { cout<<"\nPlease enter a positive integer : "; cin>>b; … |
| | I have this program [url]http://ostermiller.org/qqwing/qqwing.cpp.html[/url] I need run the program by code with parameters to do somehtin on interface. So how i load the data that i need to my program without change it. Note: I want make a program based on it [url]http://ostermiller.org/qqwing/qqwing.cpp.html[/url]. |
| | Here's what the book asked [B]The implementation of nrand in §7.4.4/135 will not work for arguments greater than RAND_MAX. Usually, this restriction is no problem, because RAND_MAX is often the largest possible integer anyway. Nevertheless, there are implementations under which RAND_MAX is much smaller than the largest possible integer. For … |
| | i got a .txt file that contain data, and i would like to read from the file and then write the data to another file, is it about ifstream and ofstream?.. what i have done is just open the input file and open the output file :(( how to relate … |
| | Hi, this is my first C++ forum post. I'm having issues with including the library libcurl [U](found [URL="http://curl.haxx.se"]here[/URL])[/U]. I want to include it in my project so I can start working with it, because a friend of mine showed me just how powerful the library is. These are my specs: … |
| | Design a class for perform the following (without using any library function for string manipulation) Read a string (containing words and spacing characters) Find out the longest word in the string Compare two strings Find out the longest common sub string(word) of the two string Display a string  |
| | hi, i need some help in this regard of creating a software, that manages the attendance of students, by taking their thumb prints.  |
| | The program I am writing is supposed to read in a txt file and then align the txt depending on the number of characters per line that the user has specified. Since there aren't any limitations to the length of the text it has to be represented using a dynamic … |
| | hi please can anyone tell me the difference between virtual function and abstraction function . |
| | Plz answer my these C doubts- Q. 1- If i have 3 source files and i declare a static variable in the source file s2.c then which statement is true:- That static variable is created when the program starts executing and is destroyed when the whole program finishes executing. OR … |
| | Hi is it possible to have recursive function as inline function ? this was question asked interview please help me |
 | Hello, I really wonder that is it possible to open any file and play with the data inside it using C/C++ FILE pointer. I'm taking a lecture called Data Management and File Structures and there we are working with text and binary files. So I decided to research and work … |
| | [code]breachmonitor.cpp:(.text+0x17ce): undefined reference to `BreachMonitor::Breach::Breach()'[/code] Can anyone please tell me what does it mean? I have created a struct and then declared its variable like [code] Breach wb; [/code] and it isnt compiling. The structure has default constructor (no arguments) and another one for initialization. It has also got two … |
| | This is just for fun and to see how people do it, it will help me to learn different techniques also. If no one answers i will understand. :) Lets say you have a template class. You want a certain method of this class will have some sort of checking … |
 | Hey everybody, I need to send the output data from a .cpp file to a .csv file so that I can import it into excel for further work. I was reading some stuff online, but I was getting confused. I need the data in the .csv file to look like: … |
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