Run applications
note
The class that you are going to execute must contain a
main()method with a valid signature, for example:public static void main(String[] args).
Click
in the gutter near the class declaration and select Run.
In the editor, open the file that you want to run.
Click
next to the Current File option on the toolbar. 
Click
in the gutter near the class declaration and select Modify Run Configuration.
Modify the run/debug configuration as needed. For example, if you need to run your program with arguments, add the arguments to the Program arguments field.
To access additional parameters, click Modify options and select the required option from the menu.
tip
To quickly access the fields only using a keyboard, hold and use the shortcut according to the hints that appear.
Click OK to save the run configuration for later, or Run to save and run it right-away.
You can launch existing run configurations in one of the following ways:
If the run configuration is already selected in the Run widget, click
next to it or press 
If you want to select another run configuration, click the Run widget. In the menu that opens, click
next to the run configuration you want to launch.
Press . In the menu that opens, click the run configuration you want to launch. Alternatively, press the associated number key as indicated in the menu.
note
For running applications using build tools, refer to Run anything and Compile and build applications with IntelliJ IDEA.
tip
Use the shortcut to search for text occurrences in the console output.
On the toolbar of the Run tool window, click
or press .
tip
If you re-run an application, the output of the previous run is lost. To preserve the output of an application, click the Pin Tab button on the toolbar of the Run tool window. When a tab is pinned, new sessions are opened in another tab.
To run or debug multiple tasks simultaneously, open the run widget menu in the toolbar and select the corresponding run/debug configurations while holding down the key.
In the Run tool window, click
on the toolbar. Alternatively, press and select the process to stop.This performs a forceful termination of the program, meaning that the usual cleanup mechanisms at the operating system, virtual machine, and application levels may be bypassed, possibly preventing the execution of shutdown hooks, proper resource releasing, logging, and so on.
In the Run tool window, click
on the toolbar.Unlike forceful termination, this terminates the program in a graceful way, the same as when it closes normally.
Right-click in the Run tool window and select Pause Output from the context menu. Use the same toggle to resume the program.
note
Only the output is suspended. Pausing the output does not affect the execution of the program.
