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Thread: Need help with

  1. #1
    Join Date
    Jan 2023
    Posts
    1

    Question Need help with

    Hello,

    As I'm trying to make a project that saves costs by user input into a CSV. File, I'm facing a problem that I can't resolve. In the first lines of the code I'm creating the part where I ask for the user input and store it in a CSV file. The problem is whenever I run the program again, it adds the new user input beside each other and not in the next cell below it. As you can see in the screenshot it says 1710 but 17 was the first input with the first run and 10 was the second input with the second run. I don't want this beside each other, but with each run a new cell under the previous input.

    If you have any improvements, please share with me as i'm still learning.

    If someone can help me with this.

    Code:
    Code:
    #include <iostream>
    #include <string>
    #include <fstream>
    
    using namespace std;
    
    int cost;
    
    int main(){
        cout << "Hello, this is a tracker! \n" << endl;
        cout << "Start by choosing your activity: \n" << endl;
    
        cout << "1. Add costs: \n" << endl;
        cout << "2. Show the content of the file: \n" << endl;
        cout << "3. Exit \n " << endl;
    
        int choice;
    
        cin >> choice;
    
        if ( choice == 1) {
            cout << "Please give me your costs: \n" << endl;
            cin >> cost;
            cout << "Your cost will be added to your file! \n" << endl;
    
            ofstream costfile;
            costfile.open ("costfiles.csv", ios::app);
            costfile << cost;
            costfile.close();
        }
    
        if ( choice == 2) {
            cout << "Ill give you the content, hold on! \n" << endl;
    
            ifstream openfile;
            openfile.open("costfiles.csv", ios::app);
            while (openfile >> cost) { // This cost is for storing each value in the file
                cout << cost << endl; // Displaying the values that has been saved in the variable 'cost'.
            }
        }
    
        return 0;
    }
    Name:  Schermafbeelding 2023-01-08 040046.png
Views: 82
Size:  7.2 KB
    Last edited by 2kaud; January 8th, 2023 at 05:16 AM. Reason: Added code tags

  2. #2
    Join Date
    Nov 2018
    Posts
    116

    Re: Need help with

    > I don't want this beside each other, but with each run a new cell under the previous input.
    So output a newline then with each record.

    Code:
    ofstream costfile;
    costfile.open ("costfiles.csv", ios::app);
    costfile << cost << '\n';
    costfile.close();

  3. #3
    2kaud's Avatar
    2kaud is offline Super Moderator Power Poster
    Join Date
    Dec 2012
    Location
    England
    Posts
    7,820

    Re: Need help with

    [When posting code, please use code tags so that the code is readable!]
    All advice is offered in good faith only. All my code is tested (unless stated explicitly otherwise) with the latest version of Microsoft Visual Studio (using the supported features of the latest standard) and is offered as examples only - not as production quality. I cannot offer advice regarding any other c/c++ compiler/IDE or incompatibilities with VS. You are ultimately responsible for the effects of your programs and the integrity of the machines they run on. Anything I post, code snippets, advice, etc is licensed as Public Domain https://creativecommons.org/publicdomain/zero/1.0/ and can be used without reference or acknowledgement. Also note that I only provide advice and guidance via the forums - and not via private messages!

    C++23 Compiler: Microsoft VS2022 (17.6.5)

  4. #4
    2kaud's Avatar
    2kaud is offline Super Moderator Power Poster
    Join Date
    Dec 2012
    Location
    England
    Posts
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    Re: Need help with

    Perhaps something like this:

    Code:
    #include <iostream>
    #include <fstream>
    
    using namespace std;
    
    int main() {
    	cout << "Hello, this is a tracker!\n";
    
    	for (int choice {}; choice != 3; ) {
    		cout << "\n1. Add costs:\n";
    		cout << "2. Show the content of the file:\n";
    		cout << "3. Exit \n";
    		cout << "\nPlease choose your activity: ";
    
    		switch (cin >> choice; choice) {
    			case 1:
    				{
    					int cost {};
    
    					cout << "Please give me your cost: ";
    					cin >> cost;
    
    					cout << "Your cost will be added to your file! \n";
    
    					if (ofstream costfile { "costfiles.csv", ios::app })
    						costfile << cost << '\n';
    					else
    						cout << "Cannot open output file\n";
    				}
    				break;
    
    			case 2:
    				cout << "I'll give you the content, hold on! \n";
    
    				if (ifstream openfile { "costfiles.csv" })
    					for (int cost {}; openfile >> cost; cout << cost << '\n');
    				else
    					cout << "Cannot open input file\n";
    
    				break;
    
    			case 3:
    				break;
    
    			default:
    				cout << "Invalid option\n";
    				break;
    		}
    	}
    }
    All advice is offered in good faith only. All my code is tested (unless stated explicitly otherwise) with the latest version of Microsoft Visual Studio (using the supported features of the latest standard) and is offered as examples only - not as production quality. I cannot offer advice regarding any other c/c++ compiler/IDE or incompatibilities with VS. You are ultimately responsible for the effects of your programs and the integrity of the machines they run on. Anything I post, code snippets, advice, etc is licensed as Public Domain https://creativecommons.org/publicdomain/zero/1.0/ and can be used without reference or acknowledgement. Also note that I only provide advice and guidance via the forums - and not via private messages!

    C++23 Compiler: Microsoft VS2022 (17.6.5)

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