How to extends JSpinner to check for input validation.

I have JSpinner instantiated with a SpinnerNumberModel. If I enter a number for example 123 I am happy with it. However if enter 12a3, I would like the spinner to the notify the user of the error, instead of parsing the number to just 12.
Thank you.

The text component of a JSpinner that uses numbers is a called a NumberEditor and is an inner class of JSpinner. You can read the API here
It uses a JFormattedTextField to accept input, and you would do well to read the API on this as well. You may need to substitute a plain JTextField with a DocumentListener, but I haven't tried this so can't fully vouch for this.
oh, and as always, please simply ignore alexxzius.
Edited by: Encephalopathic on Jul 4, 2008 11:25 AM

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sunnymanman wrote:
Dear Friends,
I am thinking a problem, How to extend breadth first Search for Binary Tree to any kind of Tree?? ...The answer is interfaces.
What do all trees have in common? And what do all nodes in trees have in common?
At least these things:
interface Tree<T> {
 Node<T> getRoot();
interface Node<T> {
 T getData();
 List<Node<T>> getChildren();
}Now write concrete classes implementing these interfaces. Let's start with a binary tree (nodes should have comparable items) and an n-tree:
class BinaryTree<T extends Comparable<T>> implements Tree<T> {
 protected BTNode<T> root;
 public Node<T> getRoot() {
 return root;
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 private T data;
 private Node<T> left, right;
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 List<Node<T>> children = new ArrayList<Node<T>>();
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 return data;
class NTree<T> implements Tree<T> {
 private NTNode<T> root;
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G'day all
Summary: I'm sick, it's difficult to type, and a combination of autocorrect, default Shift key settings for input fields and my iPad completely ignoring my default email account is making it laborious to input my email address. Help!
(Edit: I had a micro-brainwave and checked my "Me" card in Contacts, since I have Safari set to autofill from that card. My default email address is not listed first in the card. I've now put it on top, Gmail second and "me.com" last. I'll comment later on if I see this help with point 3 below.)
Details:
I love my shiny new iPad2. I really do. But autocorrect is driving me crrrrrazy when I try to input my email address.
Typing in general is an issue for me, because I am disabled and have difficulties with coordination and movement. On my laptop (MacBook Pro mid 2009), I used TextExpander. It lets you set an abbreviation for any text, so you can just type that abbreviation instead of the whole thing, and TextExpander automagically inputs the whole thing for you.
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Enter the iPad.
I need to use the iPad now, because my laptop is now too heavy for my legs (and I do occasionally need a full-on laptop, so the MacBook Air isn't the solution). The iPad in general has been great for me. The simplification of the interface (while annoying at times, e.g. not being able to view full headers in an email) saves brain cycles, so I can read for longer.
However, where on my laptop I only needed to input 4 chars for my email address, on my iPad I have to input the whole 23 chars. How many places online are you asked to input your email address? Way too many. Safari may eventually catch up and record some of them, but currrently, I'm using too much of my day's energy just on trying to input my email address. (Note: this post is written on my laptop, so I can use my abbreviations.)
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Grrr.
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2. Even when the email-address field turns off the Shift key, or when I remember to do it myself before entering text, autocorrect will insist on changing the first letter back to upper-case, because my username is also my first name. Cue more deleting and getting confused.
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4. Even if I do manage to input my whole email address correctly, autocorrect will insist on capitalizing the first letter of the domain name (which is also a location). Cue yet more deletion and retyping.
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As Roosevelt suggested, you can turn off Auto Correction in the keyboard settings. Go to Settings>General>Keyboard>Auto Correction>Off.
This will also turn off spell check (unfortunately) and there is no fix for that. Auto Caps can also be turned off as well and so can the keyboard shortcut for the space/period. Frankly, all of these features drive me nuts and I wish the iOS allowed for more control, but it does not.
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Lastly, with regard to your correct email address popping up, that is another case of if repeated time and time again, It should be another case of the iOS "learning" through repetition that your default email should popup when you begin entering the address.
You could try to rectify all of this by resetting all of your settings and clearing Autofill but you would be starting all over again which is something I think you would rather avoid.
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As Roosevelt suggested, submit feedback, and I hope you find some resolution to this.
Quick Note - I originally typed this post on my iPad and when I read a few of the words that were substituted by auto correct - I quickly turned to my iMac to change the words. I do feel your pain with regard to auto Correct!
Message was edited by: Demo

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