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Thread: Hide/Show Form?

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    Default Hide/Show Form?

    I've taken on a project making a program written in Java, with no prior training in Java. I know VB .net, C++, and even SQL, but for the life of me I can't figure out how to implement the same functionality in Java as I can in VB .net.

    All I want to do (to start with) is (using VB .net terminology) hide and show forms. In VB .net I just used "me.hide" and "formx.show" but I don't see how to implement stuff like that in Java and would like some help with that, to begin with.


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    Default Re: Hide/Show Form?

    What are you talking about: a Java application, a Java Applet or a webpage with Javascript?

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    Default Re: Hide/Show Form?

    You can use .isVisible() on a JPanel
    Please use [highlight=Java] code [/highlight] tags when posting your code.
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    Default Re: Hide/Show Form?

    For more info about this problem: See cross post at The Java Equivalent? - Dev Shed

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    Default Re: Hide/Show Form?

    Quote Originally Posted by Norm View Post
    For more info about this problem: See cross post at The Java Equivalent? - Dev Shed
    Good grief!

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    Default Re: Hide/Show Form?

    Ah, no please do NOT see that post. That guy Norm has wasted my time over on that site and now he's hijacking my thread here too.

    Look, all I want to do is get a Java program to show/hide forms, that's it! Please, someone other than Norm help me out!

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    Default Re: Hide/Show Form?

    Post the code that is the problem. There are no forms in Java.

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    Default Re: Hide/Show Form?

    Quote Originally Posted by Junky View Post
    What are you talking about: a Java application, a Java Applet or a webpage with Javascript?
    A Java application

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    Default Re: Hide/Show Form?

    That guy Norm has wasted my time over on that site and now he's hijacking my thread here too.
    Not a great way to try and get help...Norm is a valuable contributor here (and the website in the link), and has been quite patient with you - asking the same questions that we all have as you have not presented your questions clearly at all. I personally have no idea what you mean by a form...in Swing, things are components combined together, so if you are talking about this (I'm guessing here) you can use a particular layout, remove them from the layout, or have a separate from which is disposed of.
    Last edited by copeg; June 30th, 2011 at 03:20 PM.

  10. The Following 2 Users Say Thank You to copeg For This Useful Post:

    JavaPF (June 30th, 2011), Norm (June 30th, 2011)

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    Default Re: Hide/Show Form?

    Quote Originally Posted by chickenhawk View Post
    Ah, no please do NOT see that post. That guy Norm has wasted my time over on that site and now he's hijacking my thread here too.
    You're going to get on everyone's ignore list if you carry on like this. Norm has been surprisingly patient, considering how little information you seem prepared to divulge.

    Look, all I want to do is get a Java program to show/hide forms, that's it! Please, someone other than Norm help me out!
    The standard GUI classes supplied with Java are the AWT and Swing classes - Swing is the most recent and widely used. With Swing windows/frame components (presumably the equivalent of 'forms'), you show and hide them with setVisible(true) and setVisible(false). However, you have said you're using a class that isn't part of Swing or AWT, and you can't tell us anything about it other than it doesn't have a setVisible method. From this, you expect us to be able to tell you how to show and hide it? Are we supposed to be clairvoyant?

    Either tell us what library this class comes from, or provide a link to the API docs for this class so we can help you, or go to wherever you got it from and ask them.

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    Default Re: Hide/Show Form?

    Update - I did a quick Google for the org.jmat.io.gui package, which contains the FrameView class in question, and it is a direct subclass of javax.swing.JFrame... so it does have a setVisible(..) method.

    See the FrameView API docs.

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    Default Re: Hide/Show Form?

    I think the OP doesn't understand OOP and inheritance. The bit of code he posted looked like he was trying to call setVisible as a static method. But I could never get him to post the code and the error message.

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