set classpath for J2ME using WTK 22 >error

I downloaded J2ME - WTK22 ,and I installed in c:\wtk22. Then i set classpath as follows:

//--

SET PATH = %PATH%; C:\WTK22\BIN

SET J2MEWTK_HOME = C:\WTK22

SET MIDPAPI = %J2MEWTK_HOME%\lib\midpapi10.jar;

%J2MEWTK_HOME%\lib\cldcapi10.jar

SET J2MECLASSPATH =%J2MEWTK_HOME%\wtklib\kenv.zip;

%J2MEWTK_HOME%\wtklib\kvem.jar;

%J2MEWTK_HOME%\wtklib\lime.jar

//

next, I created a project "HelloWorl" with extended file HelloWorld.java:

import javax.microedition.midlet.*;

import javax.microedition.lcdui.*;

public class HelloWorld extends MIDlet

{

private Display display;

TextBox box = null;

public HelloWorld() { }

public void startApp()

{

display = Display.getDisplay(this);

box = new TextBox("Simple Example", "Hello World", 20, 0);

display.setCurrent(box);

}

public void pauseApp()

{

}

public void destroyApp(boolean unconditional)

{

}

}

//-

I compiled the project from KTollbar -> okie, but when i compiled the project from command line as follows:

c:\wtk22\apps\HelloWorld\src> javac -g:none -d tmpclasses

- bootclasspath %MIDPAPI% -classpath %J2MECLASSPATH% HelloWorld.java -->the compiler inform the error: javac is not recognized as an internal or external, command operable program or batch file

please kindly explain the error and instruc me the right way to implement

[1521 byte] By [dotruongduca] at [2007-11-27 6:05:59]
# 1
and what about JAVA_HOME?
suparenoa at 2007-7-12 16:53:00 > top of Java-index,Java Mobility Forums,Java ME Technologies...