Strange Integer.parseInt exception

Question

Exception in thread "Thread-2" java.lang.NumberFormatException: For input string: "3"

 int test = Integer.parseInt(result[0]);

This is the error I keep getting when I'm trying to convert "3" to an integer. Well I'm receiving this "3" through a RS-232 port, so maybe this is what is causing the error.

If anybody has any idea what could be causing this it would be appreciated.

Answer 1

What is the data type of result[0]? If it's a string, are you sure there are no spaces or new lines around it?

Try result[0].trim()

Answer 2

Take a look at the char values of result[0] when this occurs. It might be possible that this "3" is in fact not the ASCII character '3' but some strange Unicode character that just looks like a 3.