Going by this image you posted on your question in StackOverflow:
[image: image.png]
The TwoDArray class is not a *main class*. In other words, it may not have
a public static void main(String... args) method contained in it. The icon
in the *Projects* window has no "run" icon on its lower-right corner, which
would indicate there is a *main* method in the class. However, the code for
that class you posted on StackOverflow does have the *main* method, so try
this:
1. Right-click on the top-level project node
2. Select *Properties* at the bottom of the pop-up menu
3. Go to the *Run* section of the *Project Properties* dialog
4. Click on the button labeled "Browse", which is next to the field
labeled *Main Class*
1. In the *Browse Main Classes* dialog, see if TwoDArray class is
listed
If you follow those steps and the class is not listed in the *Browse Main
Classes* dialog window, I would suggest closing NetBeans, clearing its
cache, and possibly moving the class file out of the project directory so
that you can recreate the file when you go back into NetBeans. If the IDE
is not detecting that the class is, in fact, a *main class*, you may have
some corruption in the IDE's cache, so that should be the first step to
resolving your issue.
Sincerely,
Sean Carrick
Owner - PekinSOFT Systems
On Tue, Oct 29, 2024 at 12:02 AM Zulfi Khan <zulfi6...@yahoo.com> wrote:
> <
> Hi Zulfi,
>
> the run menu relates to the file you have selected in the projects view.
> So, single click the file you want to run in the projects view. Then you
> can open the „run“ menu and choose „Run file“.
>
> You can also right click the file in the projects view and select „Run
> File“ within the popup menu.
>
> Best regards,
>
> René
> >
>
> <
> Zulfi,
>
> If your project uses the Maven build system and is a POM project with
> multiple sub-projects, the you need to set the sub-project that has your
> main class as the "Main Project". Doing this will enable the "Run" action
> in the menu. If you do not set a main project, then you will need to
> right-click on the sub-project that contains your main class and run the
> project that way.
>
> I'm just giving this information because your screenshot did not show your
> Projects window, so I am not sure of the project on which you cannot run.
> In the future, it helps if you let us know what version of Apache NetBeans
> you are using, as well as some general information regarding your project.
>
> Sincerely,
>
> Sean Carrick
>
> >
>
> Dear Sean and Rene-I tried your option both from pop up menu and Run menu
> but Run File option is not enabled. Actually I tried to install Javascript
> on Netbeans after that it happened. I think insatalltion removed some
> plugin.
>
> Somebody please guide me.
>
> I have attached the images.
>
> Following is the link for this problem on internet:
>
> Run File option greyed out whenever I make a new class in Netbeans
> <https://stackoverflow.com/questions/70580940/run-file-option-greyed-out-whenever-i-make-a-new-class-in-netbeans>
>
> Run File option greyed out whenever I make a new class in Netbeans
>
> I'm sorry if this is a dumb question since I'm a beginner, but I have this
> problem whenever I create a new class...
>
> <https://stackoverflow.com/questions/70580940/run-file-option-greyed-out-whenever-i-make-a-new-class-in-netbeans>
>
> Zulfi.
>
> On Monday, October 28, 2024 at 07:45:57 AM CDT, Sean Carrick <
> s...@pekinsoft.com> wrote:
>
>
> Zulfi,
>
> If your project uses the Maven build system and is a POM project with
> multiple sub-projects, the you need to set the sub-project that has your
> main class as the "Main Project". Doing this will enable the "Run" action
> in the menu. If you do not set a main project, then you will need to
> right-click on the sub-project that contains your main class and run the
> project that way.
>
> I'm just giving this information because your screenshot did not show your
> Projects window, so I am not sure of the project on which you cannot run.
> In the future, it helps if you let us know what version of Apache NetBeans
> you are using, as well as some general information regarding your project.
>
> Sincerely,
>
> Sean Carrick
>
>
>
> On Sun, Oct 27, 2024 at 11:18 PM Zulfi Khan <zulfi6...@yahoo.com.invalid>
> wrote:
>
>
> Hi,
>
> Somebody please guide me on how to enable the Run File option in the Run
> Menu.
>
> I have attached the image. I can't run GUI programs.
>
> Please guide me on how to solve it.
>
> Zulfi.
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscr...@netbeans.apache.org
> For additional commands, e-mail: users-h...@netbeans.apache.org
>
> For further information about the NetBeans mailing lists, visit:
> https://cwiki.apache.org/confluence/display/NETBEANS/Mailing+lists
>
>
