Okay thanks.

Thanks for replying. This is what's in my main() function:

List *list = list_create();
list_add (list, "Hello");
list_dealloc (list);

Hello. I have the following code block:

#include <stdlib.h>

typedef struct List_s
{
int count;
void **items;
} List;

List *list_create()
{
List *list = malloc (sizeof (List));
list->count = 0;
list->items = malloc (1 * sizeof (void *));

return list;

}

void list_add (List *list, void *item)
{
list->items = realloc (list->items, (list->count + 1) * sizeof (void *));
list->items[list->count] = item;
list->count++;
}

void list_dealloc (List *list)
{
for (int i = 0; i < list->count; i++)
{
free (list->items[i]);
}

free (list->items);
free (list);

}

When I pass a List to list_dealloc I get a segmentation fault on the line in the for loop. I can print the contents of items[i] just fine (in my test case it's the string "Hello"). I'm using gcc-4.5.1 on 64 bit Fedora 14 if that's anything useful.

modified on Monday, February 28, 2011 12:57 PM

I had upgraded QuickBooks 2009 to 2010 edition for my dad. The conversion started off at taking four hours, then down t 2 and a half hours, down to twelve minutes then down to 3. The whole process took around 2 minutes.

It sortof makes sense. Java apps are capable of processing arguments, altough they're infrequently used on Windows. Another thing I forgot was that the first letter of a method is always lowercase. I had to rename Main (String[]) to main (String[]).

I added String[] args to the args of main () and it works.

This is the content of the manifest file:

Main-Class:MainWindow

I used BlueJ to create the jar which I believe creates the manifest file for me.

jordanwb@jordanwb-laptop:/media/DEFB-0C36/PhpDesigner$ java -jar PhpDesigner.jar
Exception in thread "main" java.lang.NoSuchMethodError: main

The main method does exist in the startup class. :confused:

import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import java.util.*;

public class MainWindow extends JFrame implements ActionListener
{
private JMenuBar main_menu;

private JMenu file\_menu;
private JMenuItem new\_project, open\_project, save\_project, save\_project\_as, quit;

private JMenu objects\_menu;
private JMenuItem add\_folder, add\_file, add\_class, add\_interface, add\_function, add\_parameter, add\_field;

private JPanel php\_object\_manager;

public MainWindow()
{
    super ("PhpDesigner");
    
    this.setSize (800, 600);
    this.setDefaultCloseOperation(JFrame.EXIT\_ON\_CLOSE);
    
    /\* Set up main menu \*/
    /\* Set up file menu \*/
    this.new\_project = new JMenuItem("New Project", new ImageIcon ("./Images/document-new.png"));
    this.new\_project.addActionListener (this);
    
    this.open\_project = new JMenuItem("Open Project", new ImageIcon ("./Images/document-open.png"));
    this.open\_project.addActionListener (this);
    
    this.save\_project = new JMenuItem("Save Project", new ImageIcon ("./Images/document-save.png"));
    this.save\_project.addActionListener (this);
    
    this.save\_project\_as = new JMenuItem("Save Project As", new ImageIcon ("./Images/document-save-as.png"));
    this.save\_project\_as.addActionListener (this);
    
    this.quit = new JMenuItem("Quit", new ImageIcon ("./Images/system-log-out.png"));
    this.quit.addActionListener (this);
    
    this.file\_menu = new JMenu ("File");
    this.file\_menu.add (this.new\_project);
    this.file\_menu.addSeparator();
    this.file\_menu.add (this.open\_project);
    this.file\_menu.add (this.save\_project);
    this.file\_menu.add (this.save\_project\_as);
    this.file\_menu.addSeparator();
    this.file\_menu.add (this.quit);
    
    this.main\_menu = new JMenuBar ();
    this.main\_menu.add (this.file\_menu);
    
    this.getContentPane().add (this.main\_menu, BorderLayout.NORTH);
    /\* End of setting up file menu \*/
    /\* Set up Objects menu \*/
    
    this.add\_folder = new JMenuItem ("Add Folder");
    this.add\_file = new JMenuItem ("Add Fil

I'm writing a program using BlueJ. I created a jar file and set the Main class to the desired class. When I run the jar in Explorer I get an error window saying "Java Virtual Machine Launcher. Fatal Exception occured. Program will exit." I have a Main method which instantiates a class which extends JFrame. I wrapped that in a try-catch block to see if there was an error on my code. The message still appears. Is there a way to get a more verbose error? *Edit* Okay I ran it on my linux machine and this is the error:

jordanwb@jordanwb-laptop:/media/DEFB-0C36/PhpDesigner$ java PhpDesigner.jar
Exception in thread "main" java.lang.NoClassDefFoundError: PhpDesigner/jar
Caused by: java.lang.ClassNotFoundException: PhpDesigner.jar
at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
Could not find the main class: PhpDesigner.jar. Program will exit.

So it can't fine the class, but how do I go about fixing that? Apparently the compiler and BlueJ can find the MainWindow class but the virtual machine can't.

modified on Thursday, January 7, 2010 4:16 PM

Okay Thanks.

I'll try writing to a file. *Edit* On Ubuntu 9.10 the output of Console.WriteLine, Console.Out.WriteLine and Console.Error.WriteLine goes to the user log. Why do I have to killall mono in order to stop the service? Why can't I just call mono-service2 ServiceTest.exe to stop it?

modified on Tuesday, December 15, 2009 12:02 PM

In my opening post I stated I was running Ubuntu 9.04

I changed it to Console.Error.Writeline and I was able to see "Started Ok" and "Stopped Ok". I ran mono-service2 with the --no-daemon arg. I'll try it without. *Edit* I started it without the --no-daemon argument, there is no output, but mono does show up in the list of running processes. *Edit #2* There is no output in the user.log file coming from my "service". *Edit #3* Changing it from Console.Error to Console.Out made no change.

modified on Monday, December 14, 2009 11:22 PM

Still no output.

This is my code:

using System;
using System.IO;
using System.ServiceProcess;
using System.ComponentModel;
using System.Configuration;
using System.Configuration.Install;

namespace ServiceTest
{
public class MainClass : ServiceBase
{
public static void Main(string[] args)
{
ServiceBase.Run(new MainClass());
}

    protected override void OnStart(string\[\] args)
    {
		Console.WriteLine ("Started OK");
		
		base.OnStart (args);
	}
	
	protected override void OnStop ()
	{
		Console.WriteLine ("Stoppeds OK");
		
		base.OnStop ();
	}
}

\[RunInstaller(true)\]
public class MainClassInstaller : Installer
{
    public MainClassInstaller()
    {
        ServiceProcessInstaller process = new ServiceProcessInstaller();

        process.Account = ServiceAccount.LocalSystem;

        ServiceInstaller serviceAdmin = new ServiceInstaller();

        serviceAdmin.StartType = ServiceStartMode.Manual;
        serviceAdmin.ServiceName = "Service Test";
        serviceAdmin.DisplayName = "Service Test";

        Installers.Add(process);
        Installers.Add(serviceAdmin);
    }
}

}

I'm writing a Server program in Monodevelop on Ubuntu 9.04, and I've got mono-service2 installed. When I try and run the exe via mono-service2 --debug ./ServiceTest.exe I don't get any output.

modified on Monday, December 14, 2009 4:51 PM

Sorry for not getting back sooner. In the OnStart method I'll be creating a couple of threads, a dozen or sockets and creating some objects but they won't depend on base.OnStart(). Let's say that something in my OnStart fails (file not found for example), how would I report that startup has failed and stop the startup of the service? Do I simply not call base.OnStart()?

modified on Sunday, December 6, 2009 9:15 PM

I have a class that inherits System.ServiceProcess.ServiceBase and is overriding the OnStart (string[] args) method. Where do I call base.OnStart(args)? At the beginning of the method or at the end?

protected override void OnStart(string[] args)
{
// Do Stuff
base.OnStart(args);
}

Or:

protected override void OnStart(string[] args)
{
base.OnStart(args);
// Do Stuff
}

I'm working on a Service in C# that will be run on Windows and on Linux. On Linux you store app config in /etc, but on Windows XP it's "C:\Document and Settings\{USERNAME}\Local Settings\Application Data". How would I go about getting those file paths without having to worry about platform detection?

I don't want to save the address to XML via C#, I want to read the address from the XML. Sorry I wasn't specific enough.