ShutDown from JButton

Question

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

Answer 1

Hi,
What error do you get?
How are you running the application, are you using a jar file, or from command line?