Re: Make a simple 4 row by 4 column scratch pad.

From:
Lew <noone@lewscanon.com>
Newsgroups:
comp.lang.java.help
Date:
Thu, 25 Feb 2010 12:09:58 -0500
Message-ID:
<hm6at6$4b7$2@news.albasani.net>
bH wrote:

On a JPanel, I want to make a simple 4 rows by 4
columns: a grid/ "scratch pad" that I can list two digit
numbers i.e. 10,12,...45.. one number each of the 16 cells.
I have tried a TextArea to do that. But using tabs is
a problem, to make it appear to be rows, columns.
Yet in a further search for a suitable demo,
<http://forums.sun.com/thread.jspa?threadID=226322&forumID=57>
this demo was written to demonstrate a TextPane. But while
testing/reading there was coding error of
"int tabWidth = charWidth charactersPerTab;"
In reading for further discovery the
<http://java.sun.com/javase/6/docs/api/java/awt/FontMetrics.html>
This read:
"Note that the implementations of these methods are
inefficient, so they are usually overridden with more
efficient toolkit-specific implementations."


Perhaps instead of a 'TextArea' (I wonder why you didn't use a Swing component
there - it seems really weird to mix Swing and AWT components), use
<http://java.sun.com/javase/6/docs/api/javax/swing/JTable.html>

--
Lew

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