[Advanced-java] strange exception

[Joerg Thoennes]

Alvin Wang wrote:
> I got a strange exeption on my Swing application. The exception stack is not
> started from my code. This exception is sometimes risen when I click a
> JTable. Can any guru give some hints? Thanks so much!

> java.lang.IllegalArgumentException: Cannot format given Object as a Number

The object stored in this table cell cannot be formattted as a number. Normally,
the JTable checks for the type of the object stored and chooses an appropriate formatter.
But if you specified in some way that this cell must be a number, JTable has no other
way than to try it...

 > 	at java.text.NumberFormat.format(NumberFormat.java:219)
 > 	at java.text.Format.format(Format.java:133)

In addition, I had a quick look at the Java sources, be did not found anything special or
unexpected.

So please post some of your code implementing the JTable. I think there could be a problem.

Cheers, Jörg

-- 
Joerg Thoennes
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