[C++] MultiCalc (WIP)

Discussion in 'Web Development and Programming' started by Wormwood, Dec 26, 2010.

  1. Wormwood

    Wormwood Regular Member

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    Hey. I've just recently taken learning C++ back up, and this is my first new project. It's kind of nooby, because I forgot most of what I learned before. This was just done today, with not a lot of time done reading up on more advanced methods. Features so far: Addition, and Celsius to Fahrenheit converter.

    Todo list:
    Subtraction
    Multiplication
    Dision
    Fahrenheit to Celsius converter
    Cleanup of code
    Make spacing of lines more easily readable
    Coloring (last, or near last)

    Preview of current version.


    Code...
    Code:
    //
    // Author: Ronald Munday
    // Date: 12/26/2010
    // Program:
    // MultiCalc - A calculator with multiple functions.
    // Addition
    // Multiplication
    // Subtraction
    // Division
    // Fahrenheit to Celcius
    // Celcius to Fahrenheit
    //
    #include <cstdio>
    #include <cstdlib>
    #include <iostream>
    #include <windows.h>
    using namespace std;
    
    int funcAdd();
    int funcSub();
    int funcMulti();
    int funcDiv();
    int funcFtoC();
    int funcCtoF();
    int funcMain();
    
    int main()
    {
        system("title MultiCalc.exe - by Ronald Munday");
        int funcChoice;
        cout << "Hello, to start MultiCalc please choose from the following options. \nTo select one, please type the number and press enter.\n\n" << endl;
        cout << " 1. Addition\n 2. Subtraction\n 3. Multiplication\n 4. Division\n 5. Fahrenheit to Celsius\n 6. Celsius to Fahrenheit.\n\n" << endl;
        cin >> funcChoice;
    
        switch(funcChoice)
        {
            case 1:
                funcAdd();
                break;
            case 6:
                funcCtoF();
                break;
        }
    }
    
    int funcAdd()
    {
     int firstNumber;
     int secondNumber;
     int calcResult;
     cout << "You chose addition. Please enter the first number.\n";
     cin >> firstNumber;
     cout << "Now enter the second number.\n";
     cin >> secondNumber;
    
     calcResult = firstNumber + secondNumber;
    
     cout << "The result is: " << calcResult << endl;
    
     funcMain();
    }
    
    int funcSub()
    {
        cout << "VOID";
    }
    
    int funcMulti()
    {
        cout << "VOID";
    }
    
    int funcDiv()
    {
        cout << "VOID";
    }
    
    int funcFtoC()
    {
        cout << "VOID";
    }
    
    // The function to convert Celsius degrees into Fahrenheit
    // Fahrenheit = Celsius * (212-32)/100 + 32
    int funcCtoF()
    {
        int degCelsius;
        int convFactor = 212 - 32;
        int degFahrenheit;
        cout << "Celsius to Fahrenheit converter chosen.\n" << endl;
        cout << "Please eneter the degrees in Celsius: ";
        cin >> degCelsius;
    
        degFahrenheit = convFactor * degCelsius/100 + 32;
    
        cout << degCelsius << " is converted to " << degFahrenheit << "." << endl;
    
        funcMain();
    }
    
    int funcMain()
    {
        int backMain;
        cout << "Do you wish to back to the menu? Please choose.\n 1. Yes\n 2. No"<< endl;
        cin >> backMain;
    
        switch(backMain)
        {
            case 1:
                main();
                break;
    
            case 2:
                cout << "Thank you." << endl;
                cin.get();
                return 0;
            default:
                cout << "Please choose either 1 or 2." << endl;
                funcMain();
        }
    
    }
    
    To compile the code, you will need a C++ compiler. The one I used (and it works pretty well for free) is called Code::Blocks. If you are serious about programming, the download with MinGW is best.

    Downloads:
    http://www.codeblocks.org/downloads/26

    Normal download (Windows::non-MinGW):
    http://prdownload.berlios.de/codeblocks/codeblocks-10.05-setup.exe

    My .exe is included with the source code. (Not a virus, if you don't trust me compile the code yourself.)
     

    Attached Files:

    Last edited by a moderator: Jan 5, 2014
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  2. Kaiser

    Kaiser Regular Member

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    No virus, download it. Looks great Ron keep it up bro.
     
  3. Wormwood

    Wormwood Regular Member

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    Thanks :) I'll be keeping it updated as I work on it. Once all the functions are at least working, I'll be adding the capability to do multiple equations for adding, subtracting, multiplication, and division. I don't think the temperature conversion really needs multiple equations. I'll also work on cleaning the code. This current code is very sloppy, I didn't even put many comments XD
    -- Merged Posts --
    Basic terminology of my above code...

    // - Comments, they will not appear in the program itself, and are just for editing purposes.
    { - beginning of any section of code
    #include <xxx> - Header files, essentially libraries containing all the commands I'm using.
    int funcAdd(), etc. - Function prototypes. I basically just declared these early so I would be able to use them later without worrying too much about order.
    int main() {} - Where the main program code is (between brackets {})
    int xxx() {} - Actual functions of the program.
    system - A system command
    int - an integer placeholder
    cout - Console output (text)
    cin - Console input (gets stored in appropriate placeholders)
    switch - Basically just a series of preset orders, that if met do certain functions.
    ; - ends all statements.
    { - ending of any section of code.
     
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  4. Kaiser

    Kaiser Regular Member

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    Nice explanation man, you really can do it. You will make it I remember the time when you first started c++ I think that was like 8 months ago?
     
  5. Wormwood

    Wormwood Regular Member

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    Actually a lot longer ago. Just more seriously 8 months ago.
     
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  6. Brandon

    Brandon Regular Member

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    Brandon
    I just saw this thread, I haven't messed with C++ but I do code in C# at work.
    Would love to see more examples of code. :)
     

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