adding frames to mainFrame

问题

i want to add some frame to my main frame, lets say we've 3 frames (Frame1, Frame2, and Frame3) i want to:

1. Create new Frame called Frame 4 and add menu bar with items (View Frame1, View Frame2, View Frame3) --> actually i've created this frame successfully.
2. When click on View Frame1 i want to display Frame1 in a certain place in Frame4 and so on for all menuItems
3. My problem is i've created my old frames by using Drag-and-drop tech. in net beans
4. There is a component called internalFrame but when i tried to use it i couldn't add my old frame to this internal one.

回答1:

You can solve your problems by reading this great tutorial on creating MDI applications in Java using NetBeans.

来源：https://stackoverflow.com/questions/10885784/adding-frames-to-mainframe