# Creating your C++ file

You can begin coding your HelloWorld program. The .cpp file that you create will be saved in the project folder you just created Creating your project.

Files are edited in the C/C++ editor located to the right of the C/C++ Projects view. The left margin of the C/C++ editor, called the marker bar, displays icons for items such as bookmarks, breakpoints, and compiler errors and warnings.

For more information about:

- The marker bar, see Workbench User Guide > Reference > User interface information > Icons and buttons > Editor area marker bar
- The editor area, see Workbench User Guide > Reference > User interface information > Views and editors > Editor area

To create your C++ file:

1. In the C++ Projects view, right-click the HelloWorld project folder, and select New > File.
2. In the File name box, type main.cpp.
3. Click Finish.
4. Type the code below in the editor. Lines are indented with tab characters, not with spaces.

> #include <iostream>
> using namespace std;
> int main () {
> // Say Hello five times
> for (int index = 0; index < 5; ++index)
> cout << "HelloWorld!" << endl;
> char input = 'i';
> cout << "To exit, press 'm'" << endl;
> while(input != 'm') {
> cin >> input;
> cout << "You just entered " << input
> << " you need to enter m to exit." << endl;
> }
> exit(0);
> }

5. Click File > Save.

Your new .cpp file is displayed in the C/C++ Projects view and in the Navigator view. Your project now contains main.cpp. Before you can build your HelloWorld project, you must next create a makefile.

Next: Creating your makefile

Back: Creating your project

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