kumar hght

sorry, I couldn't able to get the result

I saved the file as HelloWorld.java in folder: "c";
even I tried by saving the file in jdk's bin folder
i.e c:\Sun\AppServer\jdk\bin\HelloWorld.java
even then I am getting same error
C:\Sun\AppServer\jdk>javac HelloWorld.java
error: cannot read: HelloWorld.java
1 error

I am new to java world . I am getting these errors, plz help me out
I have java in
JAVA_HOME:c:\Sun\AppServer\jdk;
CLASSPATH:c:\Sun\AppServer\jdk\bin;
Path: c:\Sun\AppServer\jdk\bin;
C:\>javac HelloWorld.java
error: cannot read: HelloWorld.java
1 error