ShutDown from JButton

When i use this from NetBeans it's work but when i use outside of NetBenas don't Code of the ShutDown Class is:

Code :

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import java.io.IOException;
public class ShutDown {
public static void shutdown() throws RuntimeException, IOException {
String shutdownCommand;
String operatingSystem = System.getProperty("os.name");
 
if (operatingSystem.startsWith("Lin") || operatingSystem.startsWith("Mac")) {
    shutdownCommand = "shutdown -h now";
}
else if (operatingSystem.startsWith("Win")) {
    shutdownCommand = "shutdown.exe -s -t 0";
}
else {
    throw new RuntimeException("Unsupported operating system.");
}
 
Runtime.getRuntime().exec(shutdownCommand);
System.exit(0);
}
}

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Code of the ShutDown Button is:

Code :

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private void ShutDownBtnActionPerformed(java.awt.event.ActionEvent evt)
    {                                            
    try {
        ShutDown.shutdown();
    } catch (RuntimeException ex) {
        Logger.getLogger(Login.class.getName()).log(Level.SEVERE, null, ex);
    } catch (IOException ex) {
        Logger.getLogger(Login.class.getName()).log(Level.SEVERE, null, ex);
    }
}

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When you say doesn't work, what do you mean? Is there an exception? Please post any diagnostics you can (i.e. exception messages, stack traces, etc.)

Quote:

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Originally Posted by helloworld922

When you say doesn't work, what do you mean? Is there an exception? Please post any diagnostics you can (i.e. exception messages, stack traces, etc.)

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this is the exception
Attachment 1312

It looks like a class-path error. Make sure all your base class paths get included (if there's more than one). What's the folder structure you have, and what command are you using to run from the command line?

Quote:

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Originally Posted by helloworld922

It looks like a class-path error. Make sure all your base class paths get included (if there's more than one). What's the folder structure you have, and what command are you using to run from the command line?

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I have two packages one is "rd" where is my "loginform.java" and the other is "classes" where is "sdown.java"
I run it from the cmd with this command java -jar "C:\Documents and Settings\Daniel Miovski\My Documents\NetBeansProjects\R D\dist\R_D.jar"

Quote:

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Originally Posted by mija

I have two packages one is "rd" where is my "loginform.java" and the other is "classes" where is "sdown.java"
I run it from the cmd with this command java -jar "C:\Documents and Settings\Daniel Miovski\My Documents\NetBeansProjects\R D\dist\R_D.jar"

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Well, I never use IDE to develop an app (I swear :cool:). Every good IDE takes care about the running process whether it's finishes or still in...waiting. That why your Shutdown class works within your IDE. If you run this class outside your "protected" IDE environment your class is lost. Why? Let analyse your code. The command Runtime.getRuntime().exec(shutdownCommand); is fired then the next command is executed....and it is an EXIT, your JVM terminates and your previous command is probably still in process. Remember Java JVM works asynchronously.

You have to remove the System.exit(0) and put it in the JButton method ShutDownBtnActionPerformed(...) or wait for the termination of the exec() execution.
For example:

Code java:

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Process p = Runtime.getRuntime().exec(shutdownCommand);
p.waitfor();

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My advice. IDE relieves a lot of writing work....but it fools its users, too. You learn more if you write your code without IDE (using any fine editor, for example the free editor Jedit of Sourceforge)

Terminating the other process not the issue here. Rather, it's an exception being thrown before it starts the process. Processes created by the JVM continue to run even after the JVM shuts down.

@mija

You're two class file names must match the names of the classes. So sdown.java belongs to the class sdown, not to the class ShutDown. You must also make sure your jar file's folder structure follows your package structure.

I SOLVED this problem by moving the class

Quote:

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sdown

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into the

Quote:

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rd

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package
Thanks