Compile error for FileReader

[VbEndUser]

Dear Jitechno,

about the RMS, This is what i get from the internet:

Record Management System Basics The Mobile Information Device Profile (MIDP) defines a set of classes for storing and retrieving data. These classes are called the Record Management System (RMS). With the RMS, it's possible to make data persist across invocations of a MIDlet. Different MIDlets in the same MIDlet suite can also use the RMS to share data...

you can refer to this site:
http://www.palowireless.com/Java/tutorials.asp

yesterday, i have try to use the FileOutputstream but the netBeans give me a compile error saying "can not find symbol".
same as the problem i face in my first post (for "FileReader").

i have search the internet and found the java.io.* have a lot of function. This include the
1.FileReader
2.FileStream and etc.

but my java.io.* only have very few function. maybe you can have a look at the printscreen.
Is that the function that can support when we use the "Java wireless toolkit WTK2.5.2 for CDL"?

Means java.io.* only have the very basic function in platform "Java wireless toolkit WTK2.5.2 for CDL".
When you develop a true java application, then you can get to access to all the java.io.* function,which is more that the mobility platform?
thanks.