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Hello folks,

I am trying to add a JFrame object into JTabbedPane, but I am getting a java.lang.IllegalArgumentException. Here's my code snipt.

// other codes...
JTabbedPane tabs = new JTabbedPane();
tabs.addTab("Flight Information",flightInfoPane);  <-------------- line 28
// other codes...
private FlightInfoPane flightInfoPane = new FlightInfoPane();

Here I have flightInfoPane class's declaration...

class FlightInfoPane extends JFrame {
        public FlightInfoPane () {
        }
 // rest of the class ....
}

This is the error that I am getting. I am not sure if this operation is allowed.

F:\DCTM_WORK>java FlightReservationDesktop.Reservation
Exception in thread "main" java.lang.IllegalArgumentException: adding a window to a container
        at java.awt.Container.addImpl(Unknown Source)
        at javax.swing.JTabbedPane.insertTab(Unknown Source)
        at javax.swing.JTabbedPane.addTab(Unknown Source)
        at FlightReservationDesktop.Reservation.<init>(Reservation.java:28)
        at FlightReservationDesktop.Reservation.main(Reservation.java:35)

please advise...


Thanks.

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Last Post by test.tracker
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I agree with Masijade, and I think you could probably just change the JFrame inheritance to JPanel, well depending on your actual coding hehe Anyway, what I wanted to recommend is NetBeans. It’s a very innovate IDE when one is dealing with GUI applications :icon_cool: You’d just create a new Java project and create a new GUI form; then you can drag and drop components just like in Visual Basic, but since it's Java it's better :icon_mrgreen: You certainly don’t have to code within NetBeans; just copy the automatically generated GUI code to the IDE that you’re using.

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you can not add jrame into jtabbedpane...but you can add jtabbedpane into jframe.
create jpanels and add them into addTab().

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