Re: Component.add ignores addition of same object ???

From:
Sabine Dinis Blochberger <no.spam@here.invalid>
Newsgroups:
comp.lang.java.programmer
Date:
Fri, 11 Apr 2008 12:46:17 +0100
Message-ID:
<_pCdnXFgFcYW0mLanZ2dneKdnZydnZ2d@novis.pt>
Superboer wrote:

Hello All,

sorry for my ignorance, however why does this:
==================================

import javax.swing.*;

class x{

    public static void main (String[] args) {
    JPanel j = new JPanel(false);

    JTextField jtf = new JTextField("nr");
    for (int i = 0 ; i < 10; i++){
      j.add(jtf);
    }

    System.out.println("have added:"+j.getComponentCount()+": to
JPanel...");

  }

}
==================================

yield one. ???
And yes i do want to add X times the same object, not X times a new
object....
I can not find a clue in the manual.

Thanks

Superboer.


But if you want X JTextFields, then you need to create X new
JTextFields. Otherwise, are you trying to display several input fields,
that all refer to the same object? What do you hope to gain from this?

You can re-use the local Variable for adding (if you don't need any
reference to your JTextfields later on), but the new statement needs to
be inside the loop.

--
Sabine Dinis Blochberger

Op3racional
www.op3racional.eu

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