Browse questions answered by Jon Skeet

How to remove xmlns="" from xml request

i'm trying to remove blank xmlns from the xml request generated from stub that i've auto-generated from a wsdl using the axis wizard. Axis wizard generates the request class in...

You should specify the same namespace URI for your nested elements: elemField.setXmlName(new javax.xml.namespace.QName("http://myNamespace", "DestinationIdsInfo")) (Ditto for... more 9/25/2013 12:22:08 PM

Strange behaviour of Scanner.nextFloat

If I execute the following code: import java.util.Scanner; public class ScannerTest { public static void main(String[] args) { Scanner s = null; ...

Can somebody explain why this happens As you said, it's using your default locale. Print Locale.getDefault() to check what your default locale is. Note that Float.parseFloat is not locale-specific. and how can I make the Scanner... more 9/25/2013 9:47:08 AM

Java Simple Date Format Time Issues

SimpleDateFormat sdf1 = new SimpleDateFormat(yyyy-MM-dd kk:mm:ss); SimpleDateFormat sdf2 = new SimpleDateFormat(yyyy-MM-dd HH:mm:ss); Calendar cal = Calendar.getInstance(); Date d...

There's no reason why there should be an error. k is documentedin SimpleDateFormat as a field for: Hour in day (1-24) That explains why you get 24 for midnight instead of 00, too. If you don't want values between 01 and 24, don't use... more 9/25/2013 6:25:29 AM

Static final variable along with static initializer block

I made a class that contains: static final variable static initializer block with a System.out.println() statement If I call the static final variable from another class, the...

My guess is that your field is of either a primitive type or String, and is initialized with a compile-time constant expression. For static final fields initialized with a constant expression (and only such fields) - any code which refers... more 9/25/2013 6:10:49 AM

C#, thread priorities, and locks

In C#, if a high priority task is ready to execute and another (low priority) thread is already inside a monitor, would the low priority task be preempted in the following two...

If the higher priority thread is waiting for a lock, regardless of which thread owns the lock, it won't be scheduled. If the higher priority thread isn't waiting for anything, then it may preempt a lower priority thread. None of this is... more 9/25/2013 5:53:11 AM

Why is this code not threadsafe?

I have a piece of code like this: public class UserCache { private Dictionary<int, User> _users = new Dictionary<int, User>(); public User GetUser(int id) ...

No, it's not thread-safe. Imagine it's called twice at the same time with the same ID, which isn't previously present. Both threads would get as far as RetrieveUser, and they'd both call _users.Add(id, u). The second call would fail... more 9/24/2013 10:00:16 PM

Exit my while loop at a specific day and time

I have a while loop that will be continually processing information over the weekend. On Monday at 8:00 am I would like this process to stop. I have this running inside my while...

It sounds to me like it's as simple as: DateTime currentDate = DateTime.Now; if (currentDate.DayOfWeek == DayOfWeek.Monday && currentDate.Hour >= 8) { runLoop = false; } more 9/24/2013 9:58:34 PM

Using a nested for loop and getting unexpected repetitions in c#

I've the following code in c# visual basic 2010: for (int i = 7; i > 0; i--) { Char star = '*'; string numbers = "765432" ; //Console.WriteLine(star); for...

This is the problem (I suspect, anyway - it's certainly a problem): numbers.TrimEnd(numbers[numbers.Length - 1]); Strings are immutable in .NET. TrimEnd doesn't change the existing string - it returns a reference to a new one. As... more 9/24/2013 9:42:50 PM

Reading XML nested node values

Having an issue grabbing values in an XML file The structure is as followed <configuration> <settings> <add key="folder" value = "c:\...." /> ...

The name of the element isn't folder... that's the value of the key attribute. Also note that as you've used XElement.Load, the element is the configuration element - asking for Elements("configuration") will give you an empty collection.... more 9/24/2013 7:57:06 PM

For loop skips straight to the end

I started studying C# and I encountered a problem with one of my assignments. The assignment is to create a pyramid made of stars. The height is designated by user input. For...

The condition in a for loop is the condition which has to keep being true in order to go into the loop body. So this: for (int height = bar; height == 0; height--) should be: for (int height = bar; height >= 0;... more 9/24/2013 7:15:01 PM