I am developing a Java Swing application with Net-Beans. the application has a JFrame with tabbed panes. Now the problem is that when the frame is maximized, the tabbed pane only covers half the page and does not re-size to fit the new size of the frame.
Is there a way in Net-Beans to make the tabbed panes re-size with the enlargements of the JFrame, or does it have to be done programmatically.
If it has to be done programmatically, how would I go about it?
The sounds like a layout manager issue
Try setting the layout of the frame to BorderLayout before you add the JTabbedPane
Related
I am working in the NetBeans. For that when I am working in the new JFrame form or the design view if I add the panel and then add the label and rest of the contents, it makes no difference if I don't add a panel and add the contents like JLabel, JButton, etc. it makes no difference.
Is there any reason why panel should be added to the frame? I tried to close the application when the panel was inserted and when it was not inserted on the frame, the application closes both the times. (When I press run and try to close the application, both times it closes.)
Then what is the use of putting JPanel on a JFrame?
When you add components to the frame the components are added to the content pane of the frame which by default is a JPanel. Read the section from the Swing tutorial on Using Top Level Containers for more information.
By creating a separate panel and adding components to that panel you give yourself more flexibility when designing your application. For example you may want to use a CardLayout which allows you to swap out different panels on the frame. The tutorial also has a section on using CardLayout.
I'm using code:
main.setContentPane(new JLabel(new ImageIcon(ImageIO.read(new File("4.jpg")).getScaledInstance(main.getContentPane().getWidth(), main.getContentPane().getHeight(), Image.SCALE_SMOOTH))));
to set the image.problem is,it's not on the full frame
and having 1 more problem when I'm designing GUI in the NetBeans IDE,the picture is overlapping the components.
plz suggest some solution.
You need to use layout manager. Without layout manager it will be difficult to resize components manually. Check these links Resize the components of the frame in full-screen mode & Visual Guide to Layouts. IMHO what you need is either Grid Layout or Border Layout.
I'm having trouble using CardLayout with a JPanel inside of a JScrollPane. Basically I have a main JFrame and a JPanel inside of a JScrollpane, and then a whole bunch of different JPanels that are acting as 'cards' and pop up on different button clicks. The issue is, that some panels aren't scrollable all the way down to the bottom in the JScrollPane, they only scroll to the point of the initial panel.
Can anybody with some experience with NetBeans tell me how to make sure that each panel is fully scrollable in the scroll pane? If you only know the java code for setting this option I'd appreciate that too.
Thanks.
Is there any way to autoresize a JTabbedPane to the same size that the JFrame has?
I'm using netbeans to create the swing interface and I can't figure out whether this is a property that I can set through the GUI designer or if I have to do it programmatically. If I need to do it programatically, netbeans doesn't allow users to modify the auto generated UI code.
Thanks a lot in advance
The Visual Guide to Layout Managers should be useful for understanding how components are arranged in container.
For your task I would use BorderLayout and placed the JTabbedPane into it's center area.
For example:
frame.getContentPane().setLayout(new BorderLayout());
frame.getContentPane().add(pane, BorderLayout.CENTER);
In netbeans you just change your frame layout to BorderLayout and after that in properties for the JTabbedPane set layout constraint CENTER
I want to know if I had a component,for example,button how to able it to resize if parent component is resized by user?
This is handled by the layout manager of the container. A button at the center of a BorderLayout will resize in all directions, for example.
Read the Swing tutorial on layout managers.