How to display console in GUI for java

Is there a possible way to attach开发者_开发技巧 the console to a GUI so that the user will be able to enter commands into the console from the GUI?

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As long as the program is launched from the console, it can read and write from/to the console. There's nothing that makes a Java program "GUI" or "Console" except for the code.

If you want to always have a console regardless of how the program is launched, you could just code a frame to behave as one.