C/C++ :: Menu Driven Program - Value Returning Functions
Apr 2, 2015
I'm working on what I thought was a pretty simple program. I'm writing a menu driven program that will allow users to obtain specified measurements of several geometric figures. I was trying to test each each time I add a function.
I keep getting this error. error C3861: 'AreaOfSquare': identifier not found.
#include <iostream>
#include <string>
#include <iomanip>
#include <fstream>
#include <cmath>
using namespace std;
int menu() {
int choice;
My plan is to make this a menu driven program, I have already got the program to give the answers but now I want it to give the user choices as well. The first step in this project is to add a menu to the program. The first menu the user sees should ask the user if the program will be taking input from a file or from the user directly via the keyboard. Regardless of option chosen, the user should then be prompted to specify whether a multiplication,subtraction or addition operation should be performed.
If the user originally chose the file input method then the program should proceed to display to the screen the results of those operations on each pair of data elements in the file and terminate. If the user chose to input via the keyboard then the user should be prompted to input the two numbers, perform the operation on those two numbers and display the results to the screen and ask the user which mathematical operation they would like to do next and continue in this manner until the user chooses to exit the program via a menu option. Fortunately the only file that needs to be edited are in.dat and complxcalc.cpp files.
The premise of this assignment is to create a menu driven, array of functions calculator. This is the code I have thus far (I haven't finished all of my comments yet, I've been to focused on clearing errors).
/*prototypes*/ void sum (int a, int b); void dif (int a, int b); void pro (int a, int b); void quo (int a, int b); void printMenu();
[Code] .....
I am using Visual Studio as a compiler, and I have the following errors:
error C2144: syntax error : 'int' should be preceded by ')' error C2660: 'sum' : function does not take 0 arguments error C2059: syntax error : ')' error C2144: syntax error : 'int' should be preceded by ')'
[Code] .....
I can only assume that I am making simple mistakes.
I am trying to write a menu program that will be broken down into a series of calls to function for each of the menu items. Two of the menu items will be simple programs which I wrote.
I want two of the functions to run one of the two programs I am trying to include as items in the menu.
So far I am only familiar with variables, loops, if statements, and I just learned how to write functions.
The problem I am have is that I don't quite understand how to write a function that will run one of the two programs. Also I am having a hard time writing the program in away that would allow the user to select the menu items.
I'm creating a program that is based on a menu system. Basically each menu is its own user-defined function. The problem is at each menu you can input 'b' to go to the previous menu. I just have it call the function of that menu.
However, do the functions need to complete themselves eventually? If I just keep calling functions will I just keep going further and further deeper into ever running functions?
If so how do I avoid this and yet keep the option to go back to a previous menu/function?
After compiling, I cannot understand why my getMost and getLeast functions are returning erroneous values. I've done everything I could think of to try and fix this, Problem and code below.
A local zoo wants to keep track of how many pounds of food each of its three monkeys eats each day during a typical week. Write a program that stores this information in a twodimensional 3 * 7 array, where each row represents a different monkey and each column represents a different day of the week. The program should rst have the user input the data for each monkey. Then it should create a report that includes the following information:
* Average amount of food eaten per day by the whole family of monkeys. * The least amount of food eaten during the week by any one monkey. * The greatest amount of food eaten during the week by any one monkey.
Input Validation: Do not accept negative numbers for pounds of food eaten.
I hate vague errors where I don't even know where to start looking for an error. Error happens immediately and it says "Unhandled exception at 0x5981c9c7 (msvcr100d.dll) in experiment.exe: 0xC0000005: Access violation reading location 0xabababab."
I just started learning the basics of programming. While encountering one of the practice problems in the book by Alex Allain I got a little confused. The question is as follows:
Write a menu program that lets the user select from a list of options, and if the input is not one of the options, reprint the list.
The author assumes you can answer this question only using if statements and/or loops (while, for and do).
This is the code I've written thus far:
Code: #include <iostream> using namespace std; int main() { int option; char reset;
[Code] ....
For some reason, the nested while loop keeps repeating even when you input a valid option (1, 2 or 3). I can't seem to figure out why this happens.
But I still do not load the excel file into my program by selecting the program from ContextMenu (right click on excel file and choose program). Although if select the path to excel file from the program, the data from excel file is loaded into the program.
I'm still missing something at function OpenExcelFileWithEasyForm(). How to complete this function to load the excel file into my program when selecting programs in ContextMenu.
Can not seem to get the program to perform the calculations within the cases. Also, how do you set up the a prime function program within the menu. Have been trying for five days now.
I need to implement a two-way asynchronous communication between two objects, not using any IPC.
What I have now is a producer-consumer model where producer sends a number "88" to consumer at random intervals. Now, I need consumer to send a number "99" back to producer at a random intervals, this probably should be done in a separate thread.
I am using GNU on Linux, here is the compile line.
Code:
g++ -g -std=c++11 main.cpp -o main
Code:
#include<iostream> #include<chrono> #include<thread> class IObject { public: virtual void fromApp(int i) = 0; virtual int toApp(int& i) = 0;// ???
This is what I have so far, it gives me a nice menu to select from and it all works but after I make a selection it closes the program. I tried to return to it but it won't work for me
#include <stdio.h> int main() { int choice; int deposit; int balance = 500; { printf(" CHOOSE FROM THE FOLLOWING
I decided to create a simple program to display a menu with options, while that is easy enough I had some difficulty when selecting an option that has options inside which also has an option again. While I had many issues in the past I'm finally finished with it and it works fine, but being new to programming and not knowing various other methods available.
Code: //:::::::::::::::::::::Simple Menu Program:::::::::::::::: //::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
I just started learning C and trying to create a program in C that will have a starting menu for a calculator. The problem is that I could do that with a switch/case but the assignment requires me to use if/else.
Here's what I have so far:
Code:
#include <stdio.h> int calc(); int menu(); int main() { printf("Hello. Welcome to the program. "); printf("Press RETURN key to continue...
[Code]...
How should I go from now using if/else to have those 4 choices?
I tried to write a menu program as a switch-case structure with a separate function for a switch-case structure itself. The outcome for it currently is an undesired one
Code:
#include <iostream> using namespace std; int menu(int answer); int main()
[Code].....
The output I get is one where it's just an infinite loop of "Bad choice! Please try again later.".
I'm trying to write a program that has a menu with a switch statement. I'm getting "case label'1' not within a switch statement" and subsequent errors for the other two choices and the default.
int main(){ int choice; Matrix A,B,C; cout <<"What would you like to do? "<< endl;
I just recently finished up a program that implements Dijkstra's Algorithm and I thought I would make a nice little menu for the user.
so the user can input their locations, I use Getline just in case their location contains spaces. However, when the user selects 2, It skips over the first input for the "Source" location and only lets the user input for the "Destination".
Any reason why this would happen? Am I missing something with Getline? Anyway, here's the code...
The program is not showing my full menu just the 0 Exit and the last line of text. This is the full main source file (not implementation file or header file).
i cant seem to get the program to return the right grade it keeps returning 0 or 1. i want the program to return true for grades grades greater then or equal to 70 but cant find the right formula to put in the bool(). what formula should i put?
I've read that we can write a program that displays a menu of commands for the user to choose from.We can write some functions that implement these commands, then store pointers to the functions in the array :
We can get a similar effect with a switch statement but using an array of function pointers gives us more flexibility since the elements of the array can be changed as the programm is running.
I decided to write an example about this in order to understand better the context, I am facing some problems though :
Code: TEST2.c:9: warning: initialization from incompatible pointer type TEST2.c:9: warning: initialization from incompatible pointer type TEST2.c:25: error: too few arguments to function "*(arr + (long unsigned int)((long unsigned int)i * 8ul))"
