Re: what is the javax.swing equivalent of java.awt.getComponents() method

From:
markspace <nospam@nowhere.com>
Newsgroups:
comp.lang.java.programmer
Date:
Mon, 10 Aug 2009 08:21:44 -0700
Message-ID:
<h5pedm$rhf$1@news.eternal-september.org>
african brewer wrote:

 My question is: is there a method that i can use instead of
java.awt.getComponents()
something like
  JTextField[] component= pnlMiddle.getComponets();


Qu0ll is probably right, you really should use the Components[] array.
A JPanel is a generic container and can hold any type. You will almost
certainly want someday to add a different component. The following loop
will work fine for you:

   for( Component comp : component ) {
     if( comp instanceof JTextField ) {
         // do JTextField stuff...
     }
   }

However if you like living dangerously the following code snippet will
convert your Component array to JTextFields:

     public static void main( String[] args )
     {
         JPanel panel = new JPanel();
         Component[] component = panel.getComponents();
         JTextField[] textFields = Arrays.copyOf( component,
                       component.length, JTextField[].class );
     }

(Syntax checked, but not tested. This WILL throw errors if you have
anything that does not subclass JTextField in the component array.)

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