Introduction - If you have any usage issues, please Google them yourself
Java swing components to create a parent-child window example, the structure using a JDesktopPane-JInternalFrame. JDesktopPane equivalent of a "parent window", you can have more than one as a "sub-window" JInternalFrame object. As shown in the screenshot run, was elected AddFrame menu item under the Option menu
, It will increase a child window within the parent window