Hi, I need help to solve this problem. When I followed the instruction to run converter example in
J2EE Tutorial, everything were fine until I enter 100 in the browser. Then I got the following message:
A
Servlet Exception Has Occurred
Execption Report:
javax.servlet.ServletException
at org.apache.jasper.runtime.PageContextImp1....
Root Cause:
java.lang.NullPointerException:
at _0002findex_.....
Would you please show me what is the problem if you know what is wrong? Your help is sincerely appreciated.
Kenneth