49,757 Topics
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 | # include <iostream.h> # include <conio.h> int main() { float income=0; int tax=0; float r1=0.0; float r2=0.1; float r3=0.2; float r4=0.3; float r5=0.4; float r6=0.5; cout<<"Enter income:"; cin>>income; if(income>=100,001) tax=income*r6; else if(income<=100,000 && income >=70,001) tax=income*r5; else if(income>=70,000 && income >=50,001) tax=income*r4; else if(income>=50,000 && income >=30,001) tax=income*r3; else if(income>=30,000 … |
| | I need help reading lines from text files. I have been trying to read the first line just using getline(stream,line) assuming that my text file starts on the first line. This line of the text file is supposed to tell you how many lines there are so the next step … |
| | the program exites as soon as it reaches the end but I want it to ask the user if they want to exit or continue again? |
| | I'm a little confused with an assignment here and i just needed someone to point me in the right direction. Design an inventory class that stores the following members: serialNum : An integer that holds a part’s serial number. manufactDate : A member that holds the date the part was …  |
| | Essentially I have two header files, one called 'ACYDTypes.h' that contains the classes for the basic types of this system and the other called 'Settings.h' that contains function for general settings. In the Settings.h file, there is a namespace called 'Ac_Type_Settings', and within that is a class called 'AcTypeSettings'. This … |
| | I would like to start using the new fetures of c++0x like the constexpr. I currently have visual studio 2010 express c++ and I was wondering if there is a way to update the compiler but still use the same GUI? Oh and if anyone know how to permanantly disable … |
| | can you guys please help me out?? |
| | could you please tell me what is the logic behind different variations of priniting stars e.g **** ** * what loop will determine how many coloumns and rows are to be printed and how? Thank you very much!  |
| | sum=0; while(count<20) cin>>num; sum=sum+num; count++; I did made this one but I think it's wrong..can you help out guys? #include <iostream> #include <conio.h> using namespace std; int main() { int sum,num,count; count=0; while (count<20) { cout<<"cin num"<<endl; cin>>num; sum=sum+num; count++; } cout<<"sum="<<sum<<endl; getch(); return 0; } |
| | So I'm making a IOS game and when I try testing my game in xcode simulator I get these errors below. Anyone have an idea what's wrong. Btw the behaivor is for unlocking new levels if actor collides with an object: Error in line 49: invalid operands of types 'objc_object*' …  |
| | What would be the best way to initialize a Multiple array (1,2,3) within an array (1,2,3) within an array(1,2,3)? |
| | Write a program that counts words, characters, uppercase letters, lowercase letters, digits and special characters in a phrase |
| | I have some problem with image processing (24-color bmp and 8-bit grayscale). I have read a *.bmp file. Can anyone help to rotate and flip bitmap image(using C++, without openCV library)? Thanks.  |
| | Hi there, I have read that when we create object of a class, its default constructor is automatically called and default constructor assigns default values to variables e.g. to int it assigns 0 and to float it assigns 0.0 ... But I have write a program in which I have … |
| | Can you please help !! Here, you see that const int size=25; Actually, How can i use infinite number like (n). I used "n" like bellow int n; const int size = n; however it only takes 8 values. My txt file can contained different value(n) evrytime, so, i dont … |
| | hi, i have written a program to find area of triangle, but i meet some errors, i can not fix this error, kindly help me to fix the error. thanks. //******area of triangle******// #include<iostream> using namespace std; float trianglearea (float a, float b, float c, float d) { float r=a*b*c*d; …  |
| | What's wrong with this code guys? #include <iostream> #include <conio.h> #include <cmath> using namespace std; int main() { char 'A''B','C','D','E','F'; int numbers; cout<<"Enter numbers"<<endl; cin>>numbers; if (numbers==90) {cout<<"Grade is A"} else if(numbers==80) {cout<<"Grade is B"<<endl;} else if (numbers==70) {cout<<"Grade is C"<<endl;} else if (numbers==60) {cout<<"Grade is D"<<endl;} else if(numbers < … |
 | Hi. In a project of mine, I have many different files 1.h, 1.cpp, 2.h, 2.cpp, 3.h, 3.cpp etc. Some of the functionality in them depend on veriables or functions in the others. If I juggle the #includes around I can get around most of it, for instance, if functionality in … |
| | I choose a program that can read data from a txt file. Now, I input two column from txt file and i want to substract first value of 2nd column to every value of 2nd column. finally I want the sum of substracted values. Can anyone please help me. Actually, … |
 | **Create a class Employee with name, Id and salary as data members. Provide appropriate constructors, set, get and display methods in the class. In the main program, use a do-while loop to enter data for employees as long as the user desires and save all data to a file. Once …  |
| | Hello guys, I'm using MapViewOfFile to map a file and try to edit its data and save it on the file. The problem I have extra data to the file required to expand its size. So, how to append data to the end of memory mapped file using CreateFileMapping and … |
| | Hi, Im trying to connect to a database but it doesn't seem to work. This is the code I'm using: [CODE] #include "stdafx.h" #include <iostream> #include <my_global.h> #include <mysql.h> using namespace std; int main(int argc, char **argv) { MYSQL *conn; conn = mysql_init(NULL); if (conn == NULL) { printf("Error %u: …  |
 | Can we declare objects of type Person, when Person is a class? |
| | I'm getting some error when compiling this code, could any one help me understand how to make primatives members of the iterator? template <class Type> void perfectShuffle(linkedListType<Type>& list) { linkedListIterator<int> tmp1; // Use for the topHalf of the list linkedListIterator<int> tmp2; // Use for the lowerHalf of the list int … |
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| | When there is a if while else in pseudocode how do you interpret it in a flow chart. For example, a1 if c1 { a2 while c2 { a3 } } else { a4 } is the else statement connected to the if statement or the while statement and if … |
| | Please consider the code below. This is a smaller version of what I'm trying to accomplish. Point instances will get random values to be printed in a 2D grid. In order not to have duplicates, I'm inserting them in `positions`. `ret` pair is used by me in order to know … |
| | I'm including these three files in my C++ program: [CODE] #include <stdio.h> #include <cstdlib> #include <iostream.h> [/CODE] The C++ compiler I am using (Dev-C++ 4.9.9.2) Allows me to run this program. but I still receive an error message saying: [CODE]#warning This file includes at least one deprecated or antiquated header. … |
| | I have been getting used to c++ as I have been trying various scenarious on programs and exand on them with new concepts. This is my first try at exporting data from command line to a text file and the program runs fine with all the calculations. The real issue … |
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