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How to display line numbers/file name?

Himanshu Jhamb
Ranch Hand

Joined: Aug 01, 2001
Posts: 134
Hi.
For programmers familiar with C programming, we could print out the line numbers and file names by certain flags like __LINE__ and __FILE__ in the code itself.
Is there any way to do such a thing in Java ?
Any help would be appreciated.
thanks
- Himanshu


Himanshu Jhamb<br />SCJP2 v1.2 (April 2002)<br />SCJP2 v1.4 (May 2002)
Dirk Schreckmann
Sheriff

Joined: Dec 10, 2001
Posts: 7023
Are you looking for a solution for debugging and error reporting purposes?


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Himanshu Jhamb
Ranch Hand

Joined: Aug 01, 2001
Posts: 134
Yes, you can say that.
I need to track memory usage at certain points in my code & need to display the exact location of the checkpoints in my code. Hence, the question.
thx.
Snigdha Solanki
Ranch Hand

Joined: Sep 07, 2000
Posts: 128
Java API does not provide any direct way to do this but you can make use of printStackTrace() method. Write your debug statement such that it throws a Throwable and then catches it. Customize printStackTrace() to print the third line of the stack Trace. This will give you the class file and line number.
Hope this helps.


Snigdha<br />Sun Certified Programmer for the Java™ 2 Platform
 
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