A DESCRIPTION OF THE PROBLEM :
Currently, the JShell EditPad window is positioned at the bottom-right corner of the screen by default. Even if this window can be dragged to another place in the screen, the initial position can lead to an unappealing layout and potential content overflow beyond the screen boundaries, especially on smaller displays. This enhancement proposes modifying the jdk.editpad module's EditPad.java to reposition the window to the center of the screen by default, improving usability and aesthetics.