NewBie Question: Javac.exe Not recognized?

Question

Hi I just want to try out my v first hello world program in MOTOROLA IDEN SDK For J2ME Tech (v 1.2)
I added a hello-world java file in the javafiles folder. Then when i try to build, an error occurred:
"start building...
compile D:\IAProject\TRIALCODEEXAMPLE\Example.java...
javac.exe is not recognized as an internal or external command,
operable program or batch file.
Building over"
Wat's the problem? Did i missed out any settings? THanks!!!!!

Answer 1

THX, but I have new problem with this:
Unhandled Exception in constructor java.lang.ClassNotFoundException: HelloWorld
Error creating MIDlet HelloWorld
sorce from UserGuide Motorola iDEN SDK..
package  com.mot.j2me.midlets.helloworld;
import  javax.microedition.lcdui.*;
import  javax.microedition.midlet.*;
public class  HelloWorld extends  MIDlet  {
private  Form mainScreen;
private  Display myDisplay;
HelloWorld() {
myDisplay = Display.getDisplay(this);
mainScreen  = new Form("Hello World");
StringItem  strItem = new StringItem("Hello", "This  is  a J2ME MIDlet."); mainScreen.append(strItem);
public void  startApp()  throws  MIDletStateChangeException 
{ myDisplay.setCurrent(mainScreen);
public void pauseApp() {
public void  destroyApp(boolean  unconditional)   {
}Why this code doesn't work??