Question

Java Swing - Opening a new window from JFrame

Asked by: trailblazzyr55

I'm playing around with creating an application and I want to create a new window when a button is clicked. I'm new to creating swing apps so I'm wondering what the best way to accomplish this would be and what component would best suite. I have a listener setup (and it works properly - ie: I can print to the console on button click) however I don't know where to really get started with what type of component I should be using and basically how to open something that says hello world for starters...

The goal is to be able to click a button and be able to have a user enter information like an address or something and save it, and when saved close the window. I'm not too concerned on the saving part, other than being able to close the window. I would think since I'm gathering user info etc... a JDialog would not be best suited assuming they're primarily for status notifications whereas a user would click a "agree", "ok", "cancel" button or something when they read the message. So I'm thinking a JPanel or JFrame. What is the major difference and are one of these best suited for a small data entry window? And how would I display one over my main JFrame when a button in my JFrame is clicked?

Thanks in advance,
-tb55

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Asked On
2008-12-07 at 19:41:40ID23964969
Tags

Java

Topics

Java Programming Language

,

Java AWT & Swing

,

New to Java Programming

Participating Experts
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Answers

 

by: objectsPosted on 2008-12-07 at 20:07:17ID: 23118715

You would use a JFrame (os a JDialog) and add form form to that window.
Diff between a JFrame and a JPanel is that a JFrame is a top level container. A JPanel needs to be added to a tot level container to be able to be displayed on the screen. ie. every window in your gui is accosted with a top level container.

 

by: objectsPosted on 2008-12-07 at 20:09:54ID: 23118722

 

by: trailblazzyr55Posted on 2008-12-07 at 20:21:49ID: 23118749

Thanks for the quick response! I have a JFrame opening now, however when I click the "Close" in the upper right, both windows close, not just the opened frame itself. Should I be setting a unique type of "setDefaultCloseOperation()" parameter such that only the opened window closes, or set a specific close operation? If I close the main window then of course this would be ok, I'd want both windows closing.

 

by: objectsPosted on 2008-12-07 at 20:25:51ID: 23118765

yes, set it to dispose on close (assuming you don't want to reuse it)
i

 

by: trailblazzyr55Posted on 2008-12-07 at 21:13:11ID: 31523671

Thank you!

20120131-EE-VQP-002

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