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| <h1>Creating your C++ file</h1> |
| |
| <p>You can begin coding your HelloWorld program. The .cpp file that you |
| create will be saved in the project folder you just created |
| <a href="cdt_w_newproj.htm">Creating your project</a>.</p> |
| |
| <p>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.</p> |
| |
| <p>For more information about:</p> |
| <ul> |
| <li>The marker bar, see <b>Workbench User Guide > Reference > User interface |
| information > Icons and buttons > Editor area marker bar</b></li> |
| <li>The editor area, see <b>Workbench User Guide > Reference > User interface |
| information > Views and editors > Editor area</b></li> |
| </ul> |
| <p>To create your C++ file:</p> |
| <ol> |
| <li>In the <b>C++ Projects</b> view, right-click the <b>HelloWorld</b> project |
| folder, and select <b>New > File</b>.</li> |
| <li>In the <b>File name</b> box, type <b>main.cpp</b>.</li> |
| <li>Click <b>Finish</b>.</li> |
| <li>Type the code below in the editor. Lines are indented with tab |
| characters, not with spaces.</li> |
| |
| <blockquote> |
| <p>#include <iostream><br> |
| using namespace std;<br> |
| <br> |
| int main () {<br> |
| |
| // Say Hello five times<br> |
| |
| for (int index = 0; index < 5; ++index) <br> |
| |
| cout << "HelloWorld!" << endl;<br> |
| <br> |
| |
| char input = 'i';<br> |
| <br> |
| |
| cout << "To exit, press 'm'" << endl;<br> |
| <br> |
| |
| while(input != 'm') {<br> |
| |
| cin >> input;<br> |
| |
| cout << "You just entered " << input <br> |
| << " you need to enter m to exit." << endl;<br> |
| |
| }<br> |
| <br> |
| |
| exit(0);<br> |
| }</p> |
| </blockquote> |
| <li>Click <b>File > |
| Save</b>.</li> |
| </ol> |
| |
| <p>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.</p> |
| |
| <p> |
| <a href="cdt_w_newmake.htm" style="text-decoration: none"> |
| <img border="0" src="../images/ngnext.gif" width="16" height="16"></a> <b><a href="cdt_w_newmake.htm">Next: Creating your makefile </a> </b> |
| </p> |
| |
| <p align="left"><a href="cdt_w_newproj.htm" style="text-decoration: none"> |
| <img border="0" src="../images/ngback.gif" width="16" height="16"></a> <b><a href="cdt_w_newproj.htm">Back: Creating your project</a></b></p> |
| |
| <p><img border="0" src="../images/ngconcepts.gif" ALT="Related concepts" width="143" height="21"> |
| <br> |
| <a href="../concepts/cdt_c_projects.htm">CDT projects</a><br> |
| <a href="../concepts/cdt_c_proj_file_views.htm">Project file views</a><br> |
| <a href="../concepts/cdt_o_code_entry.htm">Coding aids</a></p> |
| <p><img border="0" src="../images/ngtasks.gif" ALT="Related tasks" width="143" height="21"> |
| <br> |
| <a href="../tasks/cdt_o_proj_files.htm">Working with C/C++ project files</a><br> |
| <a href="../tasks/cdt_o_write_code.htm">Writing code</a></p> |
| <p><img border="0" src="../images/ngref.gif" ALT="Related reference" width="143" height="21"> |
| <br> |
| <a href="../reference/cdt_o_proj_prop_pages.htm">C/C++ Projects view</a></p> |
| |
| <p> |
| <img src="../images/ng03_04.gif" ALT="IBM Copyright Statement" BORDER=0 width="324" height="14"> |
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