C :: Checking What User Has Entered (City)

Mar 9, 2013

I am using Dev C++ on a windows computer.

In my code, the user enters the name of a city, and then according to what city it is, the program displays the coordinates of that city

I can't find a way of figuring out and checking which city the user has entered so the code can displays its appropriate latitude and longitude.

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C++ :: Quiz Program - Checking Whether Entered Answer Is Correct From A File

Apr 15, 2014

My code is not moving past the line below...actually i am making a quiz and this piece of code id checking whether the entered answer is correct, from a file..

getline(anss,saveans);
while(a<1) {
getline(anss,saveans);
if (saveans == ToString(randNum)) {
getline(anss,saveans);
if (saveans == ans)

[Code] ....

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C/C++ :: Find Max Number Entered By User And Terminate When Negative Number Entered

Jul 15, 2014

I am trying to find the max number entered by the user, and it should terminate when a negative number is entered. For my code, it will just end when the user inputs a lower number than the previous. i.e.- 10 20 15 "The highest number is 20" when it should be "10 20 5 40 15 -1" "The highest number is 40". No arrays or do/while loops either.

#include <iostream>
using namespace std;
int Max(int x);
int main() {
int x;

[Code] ....

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C++ :: How Many Entries Entered By The User

Sep 16, 2014

when i declare local variable x and use it in array,the error is occure that use of un assign local variable.

namespace ConsoleApplication11
{class Program
{
static void Main(string[] args)
{
int x;
Console.Write("enter how many entries you want");

[Code]...

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C++ :: How To Use A User Entered File In Fstream

Feb 14, 2014

So, I am making a name-database-type-thing and I want the user to be able to enter there own file. Like, here:

string fileName;
string name;
cout<<"What is your file name?"<<endl;
getline(cin, fileName);
ifstream nameFile(fileName);
getline(cin, name);
nameFile<<"Name: "<<endl;

Well, that last part is in a loop, so you can enter an unlimited number of names to the .txt file.

So, it won't let me use the string in ifstream. How can I fix this? This maybe unclear, so if it is just say so and I will edit it.

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C++ :: How To Collect Input That Has Been Entered By User

Mar 19, 2013

I am making a program that will suggest meal options when choosing specifics contained within, e.g. style, base, main, sauce.

What I would like to know is how to collect the input that has been entered by the user, say you are given 4 lists and each has an option, how could I chain these together in order to cout a suggestion that is in my database?

-------------------------------------------------------------------------------
Example (not my real Q's and A's):

OUTPUT: What meat would you like?
INPUT: "Beef" //<collect this!
OUTPUT: What sauce would you like?
INPUT: "Tomato" //<and this!
OUTPUT: What would you like to have as the main/base?
INPUT: "Pasta" //<and this!
OUTPUT: I can suggest... "Spaghetti Bolognese" //< and return this from the database using the 3 filters
--------------------------------------------------------------------------------

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C++ :: Echo String Entered By User

Oct 3, 2013

/*
* echoString2.c
* Echoes a string entered by user. Converts input to C-style string.
*/

#include <stdio.h>
#include <unistd.h>
#include <string.h>
int main(void) {
char aString[200];
char *stringPtr = aString;

[Code] ....

and these are my errors

212Untitled1.cpp[Error] stray '222' in program
212Untitled1.cpp[Error] stray '' in program
212Untitled1.cpp[Error] stray '222' in program
262Untitled1.cpp[Error] stray '222' in program
262Untitled1.cpp[Error] stray '' in program
262Untitled1.cpp[Error] stray '222' in program
Untitled1.cppIn function 'int main()':
2125Untitled1.cpp[Error] 'n' was not declared in this scope

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C++ :: How To Hide Password Entered By User

Jul 28, 2014

I'm making a Project on a Travel Agency and I need to hide the password entered by the user! I am working on Xcode 5.1.1 -> Command Line Tools -> C++ on my MacBook Pro! Here is what I've tried --

string pass ="";
char ch;
cout << "Enter pass";
ch = getchar();
while(ch != 13){//character 13 is enter

[Code]...

But in the first case the display is -

//Assuming the password is Hello Hello ******

And in the second its giving me 3 errors -

1. Apple Mach-O Linker(Id) Error "_stdscr", referenced from:

2. Apple Mach-O Linker(Id) Error "_wgetch", referenced from:

3. Apple Mach-O Linker(Id) Error clang: error: linker command failed with exit code 1 (use -v to see invocation)

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C/C++ :: Ignore Strings From Being Entered By User?

Oct 6, 2014

how I can ignore strings from being entered by the user. When the use enter's a string it always evaluates it as even. I though I might use a cin.ignore(); but I am unaware of how to use it.

#include <iostream>
using namespace std;
int main() {
cout << "Enter a number: ";
int num = 0;

[Code] ....

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C :: Error Displaying All Info Entered By User

Mar 4, 2013

Code:

#include<stdio.h>
main() {
int item_code, quantity;
char ans, y;

[Code] ....

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C++ :: How To Recognize Two Words Entered By User For A String

Feb 11, 2013

In my little experiment i am trying to get the compiler to recognize 1 word with 2 parts from a list of names.

For example: if the user wanted to choose "candy bar", from a list of items which include: "candy bar", "cat", "dog"

My current code can recognize words without a space like cat and dog. But how can i recognize candy bar?

I tried using getline but its of no use.

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C/C++ :: Creating Constant At Runtime With User Entered Value?

Aug 14, 2014

At the moment I am making program that will use a 2d selection of "cells" to make a "map" of sorts. However, the size will not be known until run time.

I figured using an array would good, because once the size is chosen it won't be changed. However I can't create an array without using a constant.

So the first question is, can I create a constant at run-time with a user entered value that can then be used for an array size? If so, how?

Otherwise, what are my options to achieve this? I know vectors can be used, but A, my compiler keeps giving me problems even when C&P some code bits (yes I even remembered to #include and such) and B, I noticed that vectors reserve extra memory for when the size changes but this is bad (well my dinky little program won't notice, but trying to set good habits as I learn, so I'm keeping it in mind) as I don't need and don't want to allow the size to change after creation.

Which leads to number three, if I do have to use vectors, how can I prevent any accidental size changes after the initial size is determined?

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C/C++ :: Finding Sum Of Values Entered By User In While-loop?

Aug 26, 2014

Keep track of the sum of values entered (as well as the smallest and the largest) and the number of values entered. When the loop ends, print the smallest, the largest, the number of values,and the sum of values. Note that to keep the sum, you have to decide on a unit to use for that sum; use cm.

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C/C++ :: Calculate Result Of 2 Numbers That User Entered

Oct 29, 2012

In this exercise, write a rational number calculator that ask the user to enter two rational number:

a/b + c/d

and produce the result:

(ad+bc)/bd

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C :: Find The Largest And Smallest Number Entered By User?

Mar 6, 2015

How to find the largest and smallest number entered by a user. So far I'm able to add, find the average and count how many numbers are entered.

I'm just having trouble with find the max and min. I tried if statements and it breaks the program will it wont let me exit the while loop or the program will do a force close after entering a value.

Code:

#include <stdio.h>
#include <stdlib.h>
int main(){

int maxNum=0, minNum=0, value, count=0, sum=0;
double average;

[Code] ....

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C++ :: Find And Delete All Vowels In A Word That Is Entered By User

Mar 26, 2013

The program should find and delete all vowels in a word that is user entered. This is what I have so far and I know it should be essentially this format I just don't know how to set enteredword and word equal to each other.

#include <string>
#include <iostream>
using namespace std;
void vowelremover(string&);
int main () {
string word;

[Code] ....

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C++ :: How To Store Class Info Entered By User Into Array

May 7, 2013

So I have an array of my own class, "Restaurant," but I'm having a hard time figuring out how to store the info entered by the user into the array.

In total, I have two classes. I will show you all I have, it's a lot but I know it will be easier to understand.

My problem is in the AddRestaurant(), since that is where I should ask the user for all the information and store it in the array.

Also consider that I have to use the FTime class as well to handle the time. Basically I want to do something like this:

info[count].SetRating();

which will put the rating part of the class Restaurant into the array[count]

Also, my program doesn't compile because of the AddRestaurant and PrintAll functions since what I am showing is what I want to do, not what works.

//main.cpp
#include <iostream>
#include <iomanip>
#include <string>
#include "Restaurant.h"
#include "FTime.h"
int ReadMenuChoice();

[Code] .....

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C/C++ :: Calculate Percentage Of Even Numbers Entered By User In Array

Nov 18, 2014

exercise in c: write a program which calculates % of even numbers entered by a user in an array;

1) check if user hasn't entered float value; if has issue warning;
2) give the option for user to press "stop" to exit program any time.

int c,sk[100],i,sum1=0, sum2=0, rel;
printf ("How many numbers will you enter?
");
scanf ("%d", &c);
printf ("Enter %d numbers (to exit program press - stop)
", c);

[Code] ....

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C++ :: Cartesian Class - Display Coordinates Entered By User

Apr 6, 2014

I am trying to make a program with a Cartesian class that allows the user to enter 2 coordinates and displays these coordinates. When I try to compile it, I get a message saying the x and y in x=c and y=d don't name a type. How can I fix this? Also, how would I go about inserting an assignment function that assigns the values of coord1 to coord2?

Code:
#include <iostream>
#include <istream>
#include <ostream>
using namespace std;
class Cartesian {
private:
double x;
double y;

[Code] ....

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C++ :: Find Unequal Elements In Array Entered By User

Jan 12, 2014

I would like to know the algorithm or flow for finding unequal elements in an array entered by user. I tried using for loop but didn't get the expected output

Code:
#include <iostream>
#include <string>
using namespace std;
int main() {
int a[10],b[10]; //array of integer elements

[Code] ....

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Visual C++ :: Using Loop To Take User Input And Keep Running Sum Until 0 Entered

Feb 28, 2013

I am stuck on an exercise where i am supposed to use a loop to take user input and keep a running sum until the user enters a 0. the code i have so far is:

#include <iostream>
int main() {
using namespace std;
int num;
int total = 0;
int x;

[Code] ....

The full text of the error message is: error c2678:binary'>>':no operator found which takes a left-hand operand of type 'std::istream' . and one more thing i was wondering, is there a difference between c++ and visual c++?

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C++ :: Program To Find And Delete All Vowels In A Word That Is User Entered

Mar 25, 2013

The program should find and delete all vowels in a word that is user entered. This is what I have so far and I know it should be essentially this format I just don't know how to set entered word and word equal to each other.

Code:

#include <string>
#include <iostream>
using namespace std;
void vowelremover(string&);
string word;
int main ()
{//string word;

[Code]....

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C++ :: Saving And Recovering A File Named By User-entered Parameter

Apr 7, 2013

1. How can I save a text file using a parameter which the user entered?

For example, the user enters the word "Johnny". The program will create a new text file "johnny.txt"

2. How do I search the directory for a text file after the user entered a keyword?

For example, the user enters the word "johnny". The program will search the directory and recover the text document "johnny.txt".

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C/C++ :: Program To Compute Length Of String Entered By User By Class

Sep 30, 2014

I want this program by using only iostream.h & conio.h

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C :: Write A Code To Find All The Prime Numbers Before A User Entered Number

Apr 9, 2014

I am trying to write code to find all the prime numbers before a user entered number. I started with a working program and when I tried to create a function, it got all messed up.

Code:

#include <stdio.h>
int is_prime( int num );
int get_positive_integer(void);
int main( ) {
int upper; /* upper limit to check */
int num; /* current number to check */
int isprime;
/* used to flag if number is prime or not */

[Code]...

It says the error is on line 23

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C++ :: If Statement Error - Match Text Variable That User Has Entered With Another Got From Array

Dec 3, 2014

I have an if statement that should either match a text variable that the user has entered and a another text variable that has been got from an array but they won't match even if they are the same,Im at a lost with it.

void displayQuestion(int noQuestion, string questionArray[], string answerarray[], string answer, double scorearray, double finalscore){

cout << questionArray[noQuestion] << endl;
cout << "enter an answer " << endl;
cin >> answer;

[Code] ....

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