how to launch java file with ProcessBuilder?

[Neversleepin]

hi,

i try to run java program with ProcessBuilder
but it works only with .exe file and with .jar or .java
i use netbeans 6.9

why please?

import java.io.*;

public class Mani
{
public static void main(String args[])
        throws IOException, InterruptedException
{
try
{
Process p=Runtime.getRuntime().exec("javaw -jar D:\\NetBeansProjects\\GetIPAddress\\dist\\GetIPAddress.jar");
}
catch(IOException e1) {System.out.println(e1);}
}
}

[mKorbel]

maybe this one can help you with...

http://www.javaworld.com/jw-12-2000/jw-1229-traps.html

[Neversleepin]

I think the problem is:

1- i install java on my pc.
2- i install NetBeans 6.9

but i never i try javac on cmd
i always use netbeans for testing my code.

but today when i try to type "javac" on cmd it's not working, it doesn't recognize javac as an internal command.

how could resolve this problem on first?

thank you

[mKorbel]

no, no, not, please which OS (but I just something ..... about HP, As400 and Win platforms)

sure this way (via Runtime) you can run compiled Java aplication, but why

[Neversleepin]

So could you explain to me why my code is not working?
i'm beginner in java.
with the same code if i try to execute .exe file like calc.exe it's working!

thank you

[mKorbel]

again, for which OS (Windows or ....), because command & path is so different for various Native OS

[Neversleepin]

Sorry the os is win7

[Neversleepin]

So my java is located here:

C:\Programmes\Java\jdk1.6.0_17
C:\Prpgrammes\Java\jr6

And i set path like this:

ClassPath is:

.;C:\Program Files\Java\jre6\lib\ext\QTJava.zip

JAVA_HOME is:

C:\Progammes\Java\jdk1.6.0_17

PATH is:

C:\Program Files\Common Files\Microsoft Shared\Windows Live;%SystemRoot%\system32;%SystemRoot%;%SystemRoot%\System32\Wbem;%SYSTEMROOT%\System32\WindowsPowerShell\v1.0\;C:\Program Files\ATI Technologies\ATI.ACE\Core-Static;C:\Program Files\Common Files\Adobe\AGL;C:\Program Files\Common Files\Autodesk Shared;C:\Program Files\Windows Live\Shared;C:\Program Files\QuickTime\QTSystem\;set path=%path%;C:\Progammes\Java\jdk1.6.0_17\bin%JAVAHOME%\bin

I'm not sure about my setting for java.
i know one thing is that javac is located in C:\Programmes\Java\jdk1.6.0-17
and when i click it it's working but not from cmd windows

Thank you

[mKorbel]

Process p = Runtime.getRuntime().exec("cmd /c start java -jar D:\\NetBeansProjects\\GetIPAddress\\dist\\GetIPAddress.jar");

but why not run java from ShortCut (f.e. from DescTop)

[Neversleepin]

In fact hwen i try to run the jar file only, it's not working
there is an error message :
Could not find the main class: getipaddress.GetIPAdress.Program will exit

Maybe my jar is not created correctly by netbeans
i don't know

[mKorbel]

if you are sets main class correctly, then works,

check the project properties

I'll use this one only if FatalError raised, why run java from Runtime.getRuntime().exec(...