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Java 7 Int to String casting

 
malik ge
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Hi,

In java6 I think that I can do that:

Take the "id" value from session, cast it into string and store it into some String, and then by using Integer.parseInt I can change it into Int

But in Java7 when I do this, it gives an error that:


am I doing it the right way???
 
Mohamed Sanaulla
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getAttribute returns an instance of type Object. So before casting it directly, its good to check instance of or better you can invoke toString on that instance (but do check for null before invoking toString).

There isn't any changes in Java 7 which would cause such a problem.

And the exception you are seeing might be due to the fact the the getAttribute("id") is actually a Integer and you are trying to cast it to String.
 
malik ge
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Thanks...
 
Miku Ranjan
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Hi,
I think you are storing Integer against key id in session right ?
 
It is sorta covered in the JavaRanch Style Guide.
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