Java 6 Compiler issue with Windows 7

Hi,
Sorry for the newbie question. I am very new to Java and am currently reading Sams Teach Yourself Java 6 and am having a problem with the JDK 6 compiler. I wrote the beginner program "Hello Username" to test if the compiler is working and am getting the following configuration error when i go to compile it. 'javac' is not recognized as an internal or external command, operable program or batch file. I added the path C:\Program Files\Java\jdk1.6.0_01\bin to the PATH system variable as the book suggested but it did not change anything. What am I missing? The book was published in 2007 and does not include Windows 7. How can I fix this and get it running?
Thanks for any help you can offer.
Casey

At first you have to sucessfully run the command
java -versionin a DOS console. if the output is something like
java version "1.6.0_15"
Java(TM) SE Runtime Environment (build 1.6.0_15-b03)
Java HotSpot(TM) Client VM (build 14.1-b02, mixed mode, sharing)your problem is gone.
Type in this console th command
pathand there you have to find your path setting
...;C:\Program Files\Java\jdk1.6.0_01\bin;...In general you will have a environment setting JAVA_HOME=C:\Program Files\Java\jdk1.6.0_01 and the path has a
...;%JAVA_HOME%\bin;...

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