Can I connect my Java console application with GUI application?

I have Java console application but I need to create a user interface for the user interaction.

Is it possible to connect the GUI with Java console?

Not sure what the question is however,

You can use the console if you start with java.exe whether you use a GUI or not. If you use a GUI it is common practice to use javaw.exe which doesn't have a console, but you don't have to start your application that way.

On Unix there is only java ;)

You can connect jconsole ?Java Console? to either of these.

I have Java console application but I need to create a user interface for the user interaction.

If I understand you correctly, you have an application that takes input from the command line and you now need a GUI on top of it?

I'd say the easiest way to do this should be to create a new GUI app and use the exisiting application as a library. You might be able to call the console application's main method from the UI app and replace the standard input and output streams with your own implementations that connect to the GUI.