Browse questions answered by Jon Skeet

java.lang.NoSuchMethodError while running the program

I have read this thread and as it says I must have public static void main(java.lang.String[] args) my main function is like this: public static void main(String[] args) throws...

It sounds like the version of hackystat-utilities that you're using is different to the version that jmotif was built against - so the jmotif jar file contains a reference to a method which isn't present at execution time. I suggest you... more 10/14/2013 3:37:22 PM

Decimal.Parse and Double.Parse System.FormatException Different behavior

I do not understand why I have to specify NumberStyles.Float when using decimal.Parse and not for double.Parse I can do: var tmp = double.Parse("1e-2"); but not: var tmp1 =...

It's just behaving as documented. From Double.Parse: The s parameter is interpreted using a combination of the NumberStyles.Float and NumberStyles.AllowThousands flags. Note that NumberStyles.Float includes... more 10/14/2013 3:10:40 PM

On Scope of Variables in .NET(c#)

Reference Code public void MyMethod() { string x; List sampleList = populateList(); foreach(MyType myType in sampleList) { string x; // why is this not...

I dont get it...isnt that the whole essence of block statements and scoping... No, not really. The intention of scoping isn't "to allow you to reuse names". I know i can just change my variable names and go ahead.but i'd like to... more 10/14/2013 2:40:49 PM

Won't continue executing statement on ACTION_DOWN

I am making a lunar lander game for my assignment i have a button and set an onTouchListener to it (not onClick) when the button is down or ACTION_DOWN the rocket flies up and...

The documentation makes this reasonably clear: On pointing devices with source class SOURCE_CLASS_POINTER such as touch screens, the pointer coordinates specify absolute positions such as view X/Y coordinates. Each complete gesture is... more 10/14/2013 6:22:51 AM

Save updated version of printWriter several times troughou a process

I am running very time-consuming analyses and only their (very short) results are outputed to text file using printWriter. Since my computer broke down twice recently and the...

I suspect all you're looking for is calling flush on the PrintWriter. Sounds like you should potentially look for a new computer, mind you... more 10/13/2013 8:05:19 PM

How to dynamically build properties on an object

It appears, the new "dynamic" object let's you create properties on the fly: dynamic v = new object(); v.x = "a"; v.y = "b"; ... I am wondering if there is an easy way to...

Your initial code is incorrect. It will fail at execution time. If you use ExpandoObject instead, then it will work - and then you can do it programmatically as well, using the fact that ExpandoObject implements IDictionary<string,... more 10/13/2013 7:56:23 PM

Getting all the Methods from a dll in an array or list

I'm using reflection to get all the methods from a particular dll that is decorated with a custom attribute. However im not able to get all those methods in an arraylist or a list...

Your current code is all over the place, I'm afraid. You're binding against a new list with a single entry for every attribute in every method, instead of collecting all the method names and then binding once You're calling AddRange with... more 10/13/2013 6:32:21 PM

How to get MemberInfo of ArrayLength type expressions?

Some trouble with UnaryExpressions. This works this way: Expression<Func<List<string>, object>> k = l => l.Count; //got member in this case like this var...

It's an ArrayLength node, which you can create with the Expression.ArrayLength method. It's just a UnaryExpression with an Operand which is the array expression, and a NodeType of ArrayLength. It's not entirely clear to me what you wanted... more 10/12/2013 4:07:52 PM

Parse enum when string is lowered

I have a pretty fun problem, which I am not sure you can even solve using this approach. I have some string, which is all lowercase. Let's just call it businesslaw. Now, I have...

You can use the overload of Enum.Parse with a final parameter to indicate case-sensitivity: return (EnumType) (Enum.Parse(typeof (EnumType), value, false)); There's a similar TryParse overload. However, bear in mind that there could be... more 10/12/2013 3:57:57 PM

No overload for method 'xxxxx' takes 8 arguments

I'm pretty new at c# so forgive me for the basic question, but how do you fix the problem "No overload for method 'SaveData' takes 8 arguments"? Here is my code: using...

Here's your method declaration: static void SaveData(string CustomerNumber, string CustomerName, string CustomerAddress, string CustomerRateType, float Peak, float OffPeak, float Standard) And... more 10/12/2013 1:57:54 PM