i am using 3 JPanels in my prog. All are added to a JFrame , which contains 3 TollBarButtons. if i click on one toolbarbutton one Jpanel must appear. when making the JPanel visible i need to check which Jpnael is currently visible and make it hide.
How can it be possible?
Please send me the solution as quickly as possible.
thank u.
Hi
Better way U set ur JFrame layout as BorderLayout.then u can set ur toolbar on the top of the JFrame
getContentPane().add(toolbar,BorderLayout.NORTH);
after that u can create 3 JPanels.
if u r clicking on first button u can add first Panel to the center of JFrame using following command
getContentPane().add(panel1,BorderLayout.CENTER);
in the same way u can add other Panels also.
before adding other Panel u have to check the other two panel objects is null or not.
before adding the JPanel object u have to set as null other two JPanel objects.
for example if u r clicking first button that time u have to set as null other two panel objects
regards
pradeep
> Better way U set ur JFrame layout as BorderLayout.then u can set ur toolbar
> on the top of the JFrame
Yep, forgot about the toolbar, but a cardlayout is still the easiest option -
add a panel (cardlayout) to the frame, then add the other 3 panels to the
cardlayout panel