jInternalFrame does not close

[Liwuen Chew]

Hi! I made a jFrame class, but after I made it I converted it into a jInternalFrame class (Deleted the main and extended to jInternalFrame instead of jFrame).
lso I added the code

this.setClosable(true);
this.setIconifiable(true);
this.setMaximizable(true);
this.setResizable(true);

to my new jInternalFrame. When I add it to a jDesktopPane, the internal frame appears just fine with the minimize, maximize and close buttons at the top.

My problem is that only the minimize and maximize work, but if I do click the close button, it does not close the little window. Can anybody help me please? Thanks!

[Mohamed Sanaulla]

Please have a look at the JInternalFrame

public void setDefaultCloseOperation(int operation)

Javadoc wrote:Sets the operation that will happen by default when the user initiates a "close" on this internal frame. The possible choices are:

DO_NOTHING_ON_CLOSE
Do nothing. This requires the program to handle the operation in the windowClosing method of a registered InternalFrameListener object.
HIDE_ON_CLOSE
Automatically make the internal frame invisible.
DISPOSE_ON_CLOSE
Automatically dispose of the internal frame.

[Liwuen Chew]

Hey it worked!
Because it was a jFrame that was converted to a jInternalFrame, there was this line of code

setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

I removed it and it worked just fine!
Thanks!