J2ME tutorial error loading class

Question

I am the J2ME tutorial here http://today.java.net/pub/a/today/2005/02/09/j2me1.html?page=2
I have successfully compiled DataTimeApp.java and I am trying to preverify
C:\WTK2.5.2\com\j2me\part1>c:\WTK2.5.2\bin\preverify1.0.exe -classpath .\; c:\WTK2.5.2\lib\madpapi20.jar;c:\WTK2.5.2\lib\cldcapi11.jar com.j2me,part1.DateTimeApp
but I am getting
Error loading class com.j2me.part1.DateTimeApp
If anyone has a suggestion I would greatly appreciate.

Answer 1

First the obvious one: it may be because the name (on disk) of your class file doesn't match the class name declared at the beginning of the class itself. Note that java is case sensitive - so if your class says:
"public class MyClassFile {"
then the actual file must be called (exactly) "MyClassFile.class"
Secondly, if this isn't the case, it may be a package problem. If your class has a declaration like this at the beginning:
"package com.mycompany.mypackage;"
then there are 2 things to make sure of:
1) the class file must be in a directory structure that matches the package declaration, ie:
... /com/mycompany/mypackage/MyClassFile.class
2) when you run the program, you should use the entire package name for the class, ie:
java com.mycompany.mypackage.MyClassFileGood luck!