opening a Jframe form in a top of a new form

[Nubkadiya]

i want to add a jframe form to a new Jform to a specific size. is it possible. can someone help me

[Norm]

Where is the class JForm defined? I don't see it in the JDK API doc.

[Nubkadiya]

JFrame frame = new JFrame();

JLabel lblimage = new JLabel(new ImageIcon(image));
lblimage.setVisible(true);
//

JPanel mainPanel = new JPanel(new BorderLayout());
mainPanel.add(lblimage);
// // add more components here
frame.add(mainPanel);
//
frame.setSize(300, 500);
frame.setVisible(true);

so this image is in my one form. i want to show it in another form. i mean the whole form should display in top of the other form.

is it possible. can you please guide me

[Norm]

What do you mean by "form"?
There are windows that display on a computer's screen and there are JFrame classes that are used in programs that want to display a window.

[JosAH]

JFrame frame = new JFrame();

JLabel lblimage = new JLabel(new ImageIcon(image));
lblimage.setVisible(true);
//

JPanel mainPanel = new JPanel(new BorderLayout());
mainPanel.add(lblimage);
// // add more components here
frame.add(mainPanel);
//
frame.setSize(300, 500);
frame.setVisible(true);

so this image is in my one form. i want to show it in another form. i mean the whole form should display in top of the other form.

is it possible. can you please guide me

You can't put a top level JComponent (e.g. a JFrame) inside another JComponent. Try it, it'll throw an Exception. You have to think of other JComponents and e.g. the CardLayout or a JDesktop component and JInternalFrames ...

kind regards,

Jos

[Fubarable]

Best advice: read the Sun Swing tutorials as these will be your best guide for creating Swing applications. You can find them here: Lesson: Using Swing Components (The Java™ Tutorials > Creating a GUI With JFC/Swing)

Luck!

[DarrylBurke]

You can't put a top level JComponent (e.g. a JFrame) inside another JComponent. Try it, it'll throw an Exception. You have to think of other JComponents and e.g. the CardLayout or a JDesktop component and JInternalFrames ...

kind regards,

Jos

Um, JFrame (and JDialog) do not inherit from JComponent, which is the ancestor of all light weight components. Top level windows are (almost by definition) heavy weight.

The rule is that you cannot add a Window to a Container. The code behind that is found in Component.java line 430 - 432

        if (comp instanceof Window) {
            throw new IllegalArgumentException("adding a window to a container");
        }

db

[JosAH]

Um, JFrame (and JDialog) do not inherit from JComponent, which is the ancestor of all light weight components. Top level windows are (almost by definition) heavy weight.

Your right of course; my fingers were thinking for themselves again; bad, fingers! Don't do that again!

kind regards,

Jos ;-)