How to close one Frame?

[snowhot]

In frame A, after click one button, frame B will be envoked. In frame B , after click button "close" , I want to close frame B, so I use: System.exit(0). , but all frames will be closed.

Can you tell me how to close just frame B ? thanks very much.

 

[LittleWing]

system.exit terminates the process so you can not use that command.

exactly what type of frame are you using??

 

[snowhot]

Just JFrame

 

[Whitefire]

To close a frame, call the

dispose

method on a reference to that frame. This will both hide the window and reclaim all resources - the frame can be shown again with a call to

setVisible

or similar, which will recreate the frame and its components.

Alternatively (Not recommended unless hyper-optimising for speed), you could just hide the window (

setVisible(false)

) and let the resources be reclaimed when the entire application exits. Note that threads owned by this frame will not be reclaimed in this way, so the application should (must) be stopped with

System.exit

, or it will run indefinitely.

For more information, the

dispose

method is defined in

java.awt.Window

.

Regards,

--
Troy Laurin
<troy@firestarter.com.au>