51,593 Topics
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| | Since OpenGL uses the strange system of 1s and 0s to represent location on the screen, I'm trying to figure out how to switch it to standard x, y coordinates like those that are used on a graph. And so far, my searches on the rest of the internet have …  |
 | So I'm trying to convert my code into 3 files, the main.cpp, a header, and the classbody.cpp. This was my original code: #include <iostream> using namespace std; #include <string> #include <ctime> #include <stdio.h> #include <stdlib.h> class colorPicker { private: string colorArray[7]; public: colorPicker() { colorArray[0] = "Red"; colorArray[1] = "Green"; …  |
 | Hello all, I need your help. I trying to change the font of texts displayed in the output of my program. I know that we can use settextstyle() for changing fonts. But there are only four types of fonts( GOTHIC, SANS SERIFF , TRIPLEX , DEFAULT) available. I want to …  |
| | Write the C program that solve the quadratic equation problem The output should appear as follows: Enter A: 3 Enter B: 5 Enter C: 2 There are two solutions: -0.666667 and -1. Press any key to continue_ thank you,  |
| | I am parsing below sample file in below code snippet. {"requestType":"INVOCATION", "hostName":"localhost", "serviceName":"bucky", "serviceType":"DISCRETE", "serviceParameters":"sampleData", "servicesList" :[ { "serviceName" : "ABC", "serviceParameters" : {"para1" : "value1", "para2" : "value2", "para3" : "value3"} }, {"serviceName" : "CBA", "serviceParameters" : { "para1" : "value90", "para2" : "value", "para3" : "value"} } ], … |
| | Hi all few free tutorial sites for beginners are given below. C PROGRAMMING http://learnermode.com/c-tutorial/ C++ pROGRAMMING http://cplusplus.com Java https://docs.oracle.com/javase/tutorial/ C# https://msdn.microsoft.com/en-us/library/aa288436(v=vs.71).aspx Python https://www.tutorialspoint.com/python/ Java Applets http://learnermode.com/java-tutorial/applets/  |
| | I'm not quite sure the difference between strcmp and == operator when comparing 2 different strings, I was told to do this but == works as well with less typing. [code=C++] if ((strcmp (a, b[i]) == 0)) { someMethod(); } else someOtherMethod(); _______________________________ if (a==b)) { someMethod(); } else someOtherMethod();[/code] …  |
| | a program wherein you input a 8 character string..and then validate if its a valid identifier..a valid identifier is a string that starts with an alphabet and underscore(_)..invalid identifier starts with a number and a double underscore(__)  |
 | Hello everyone, I'm working on a card trick program that essentially has the user pick a card and the program will figure out which card it is. However, When I get the the displayed cards, I get some results that have no value and some that are not alligned properly. … |
| | I'm a beginner in C++. I saw \b and \r in a program source code. I've seen \n and I know its purpose. But why do we use \r and \b in C++? Please clear my doubt. Thank You.  |
| | hi there, I'm coding in windows, c++, but when I traslate my code to ubuntu, g++, I get this error: [B]lvalue required as left operand of assigment[/B] This is the line where I get the error: [COLOR="Red"][/COLOR][CODE]&*raiz=&*p;[/CODE] What could be the problem? *raiz and *p are pointers to an avl … |
 | The purpose of the program is to store values in array from a file salesData.txt which contains the values as shown below. The program should stop at the sentinel value that is 0.0. The code is not working as expected. . This is the question. Create a program that reads … |
| | Hi, Currently writing a NFC program (Windows 7-->VC++ MFC ). The reader is connected via USB and when i run the exe, i manually select and connect the reader for the exe to work. my requirement is 1. In the code, identify the wireless network and if my particular reader …  |
 | Hello, I was wondering if it was possible to create a software like visual studio (in addition simple, obviously). We could program in vb.net, c ++, etc.  |
 | 1. Your program should read the input files by using Unix shell redirection (e.g. a.out<lab1.dat) to read the input from stdin (C). By using redirection, it is unnecessary to open and close the input file, nor should your program prompt for a file name. You should dynamically allocate tables for …  |
| | Hi everyone, This might be a very stupid question to ask and the answer might be very simple but I was just curious to know this. How to display "\n" on output screen in C++? We all know \n is used to enter a new line. But what if I … |
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 | I am currently trying to update a database using C# My issue is that the update query is not working, there is no error produced just reloads the screen and thats it. My C# is as follows void SaveRecords() { try { String qry = "Update Ordered_Test Set Ref_Phy = … |
| | In below code while compiling i am getting error , Error : main.cpp:8:57: error: expected type-specifier before ‘Staircase’ std::unique_ptr algodiagnostic (new Staircase()); compilation command g++ HardwareDiagnostic.cpp HardwareDiagnostic.h main.cpp -std=c++0x -o res it works fine if compile entire code in single file without creating header file and main.cpp separately. Can anybody …  |
 | i wrote a code that will asks the user to enter a sentence and store the string in a dynamic array. copy the content of the old dynamic array into the new dynamic array and the while loop keeps going and asks the user to enter something new again and … |
 | #include<iostream> using namespace std; main() { int numGame,numSocks,numShoes; int countX = 1,countY = 0; float tempGame = 0,tempSocks = 0,tempShoes = 0,GrandTotal = 0; float totalP,priceGame,priceSocks,priceShoes; cout<<"Welcome to Numbani Bowling Arena Transaction System.\n"; cout<<"Please fill in the required sections below.\n"; cout<<"---------------------------------------------------------\n"; while( countX > -1 ) { countY = countY …  |
 | Hi all, I'm a very early user of Daniweb, and after a long break, and I'm hoping to participate a bit more in this forum again. I'm here specifically for some advice before starting a new project of mine. I'm an experienced C++ / Win32 developer, but seem to be … |
 | guys please help me i have an assignment to register students in c++ with the following first name middle name last name id sex age year section the id have to be sorted include chapters interactive with user thanks! |
| | I have been trying to compile this code but all my attempts failed, can someone please explain to me what's the meaning of randvar in this code: int upper_range = 255; for(int i=0; i<256; i++){ upper_range -= i; int delete_list_entry(temp_head, randvar); }  |
 | Using function write a program to take two arrays of integer numbers and multiply each corresponding values and put the result in a third array. |
| | This program should calcuLate users amount of watts consumed based on their appliances and the aprroximate number of hours each appliance is used in a day, week or month. The basic requirements are as follows: Give user option of selecting predefined home appliances or entering their own and corresponding watts …  |
| | Hey, I just started learning C++ a couple of days ago and I'm interested in making an automated bot for an MMORPG ie. Runescape, MU Online, Silkroad Online, Last Chaos etc. It would be for personal/private use, so only I would use it. I was wondering, is there a quick …  |
 | write the program in c++ to define a class called toString with the following data member, class variable str1 and str2 member function get string, compare string, and concatenate String |
 | Dear All, I need your asistance. I need to develop an application that takes input from text box into an array and calculcate the values (using Visual c++ GUI development). I really need yoru help. Thanks |
 | void change(char* input){ memset(input, 'a', strlen(input)); } int main(){ char* p = "foo"; cout << p << endl; change(p); cout << p << endl; } |
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 | Hello ,,,i need programming open source or any source code ,please |
| | In C++ we provide names for the entities we create, the variables, functions and types in our programs. These names, or identifiers, are required to conform to some simple rules. [b]Valid Characters [/b] An identifier must start with a letter and is comprised of a sequence of letters and digits. …  |
 | Hi Friends I am new to c++ coding, please tell me, i need to create project, if any body can help me, which condition we use the class, when we use the struct, how can use the function, how can think and get some idea, see brother i am study … |
| | Hello. I'm having trouble with creating a program based on Prim's algorithm. This is the program and got the following error: #include<iostream> #include<stdio.h> #include<conio.h> using namespace std; int weight[20][20],visited[20],d[20],p[20]; int v,e; void creategraph() { int i,j,a,b,w; cout<<"\nEnter number of vertices"; cin>>v; cout<<"\nEnter number of edges"; cin>>e; for(i=1;i<=v;i++) for(j=1;j<=v;j++) weight[i][j]=0; for(i=1;i<=v;i++) …  |
 | Write a program, which will imitate an ATM machine. The program will ask for a password. Assume that only password 123456 is accepted. If the password is correct, display the following menu Menu ATAM Bank ABC 1. View Balance 2. Deposit 3. Withdraw 4. Transfer Fund Your choice : _______ … |
 | hai. anyone can help me ? I run my coding but it be invalid option even I already declare my coding. Can I know which part I wrong ? #include <iostream> #include <string> using namespace std; void printintromenu(); void login(); void mainmenu(); int main () { cout << "Welcome To … |
 | #include<stdio.h> #include <iostream> #include <string> using namespace std; int main() printf("Password: \n"); if (scanf_s("Hello")); printf("Good Job \n"); string Migas; cin >> Migas; else (scanf_s("Hello")); printf("Wrong!"); return 0; // Help please I don't know what to do! I've been trying to learn C language and I can't find the probrem here! …  |
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 | hi i am a beginner with c++. i have a csv file. i want to read particular set of values from a particular column. how can i do it. if possible kindly help me with some sample codes. thanks in advance  |
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| | Hi All, I am looking for a design approach to implement TCP socket server which is going to serve requests based on multiple ports. (1) port1 : dedicated for video streaming (2) port 2: dedicated for audio streaming (3) port 3: dedicated for data streaming. In above scenario do i … |
 | hello, i just set goal of mastering algorith and i just get started i have an algorhtm for insert sort and i when i write it in c it is not sorting this is the algorith for j D 2 to A_length key = A[j] // Insert A[j] into the … |
 | #include <cstdlib> #include <iostream> #include <string> using namespace std; int main() { cout << " WELCOME TO GPA CALCULATOR \n\n"<< endl; int x, nument; float GPA, TotalHrs = 0, GEP = 0, CrHours, X, Y, TotalPts; char Grade, A, B, C, D, E, F; char choice = 'Y'; cout << … |
 | A [n] [m] matrix of natural numbers (2 <= n, m <= 100) is given by the fine A [i] [j] at each passing point (i, j). You are required to enter the first line of the first line from the n-string line. In addition, moving from the current drawer … |
| | Hi, I need help playing a sound in Visual C++ 2008. (Windows Forms App). I've tried many things searching on google, I used this method: [CODE]PlaySound("beep.wav", 0, SND_LOOP|SND_ASYNC);[/CODE] Then I get the error, "'PlaySoundW' : cannot convert parameter 1 from 'const char [9]' to 'LPCWSTR''. Can anyone help me play …  |
| | In below code i am writing file contents in backup serialize file through boost serialization library, but what i observed that every time i need to store all the data in file then only i would be able to read the entire data. so in case if i perform single … |
 | Write a C++ program implementing the use of Object Oriented Programming that would simulate a supermarket cash register receipt. The program should start by displaying the Supermarket's Name and business motto ... for example BRODIES - SERVICE, VALUE , SATISFACTION. Then goes on to ask the user enter the customer … |
 | I am learning to code and found interesting task, but i do not know where to start in solving it. So i have a file with some titles and comments which need to be placed under the right title. So the first line of the input contains a number N … |
| | Hi everyone! I need your assistance in creating a c# based web browser. I want to change the useragent string but i don't know how to. I'm a newbie, I'm curious and finding this interesting. There are few things I like to implement with this browser and i need your … |
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