unable to compile java file in ms-dos

[jennifer]

javac is not recognized as internal or external command

I have been learning java since the beginning of some courses in Java programming. And yesterday, with the help of the teacher, I finally managed to make my first (very simple) program . To see if the program works well, the teacher told me to go to MS-DOS in the directory where the file is located, and type: "javac filename"

But when i type this , I got this message "javac" is not recognized as internal or external command. Being a true pure novice in this field, I need ask you: where is the problem? I could see the need to move in the environment variables ..

[JoeFrat]

Javac is a exe which is found in the bin folder of your JDK sotherefore you probably didn't add it to you classpath so thereforecommand prompt doesnt know how to find "javac".

Follow this Steps For Windows--

1. Control Panel
2. Click System
3. Click Advanced
4. Environment Variables
5. Edit your class path and add the bin folder of your JDK.

[Modifier]

It must first you have the compiler (and reader, for that matter) java (JAVAC), if this is not the case, you can download on Sun's site:

http://www.javelinfeedback.com/sun/i...06a7765ee5d4ca

you install it and if it is not enough, said the system MS-DOS where javac.exe:

set PATH =% PATH% c: \ jdk1.4 \ bin

Explanatory Note:
As javac.exe is an external command, but it is not in a default directory of Windows (Windows, System32 ...), it can not find that with this command (which tells simply that the new path (path of external default) is the old + path where javac.exe).

[MindSpace]

For running the program you need to have the JDK installed instead of
the JRE. JRE provides just the environment for precompiled code to
run. You ca download JDK from java.sun.com