Browsing 15980 questions and answers with Jon Skeet

How can one calculate the Nth non holiday from a given date?

Let's say I have a List<DateTime> L that contains holidays dates in the US. Let DateTime d be today 2017/10/19. I want to calculate the next n-th non-holiday date (where n...
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If the set of holidays is finite (and reasonably small) It's really easy to create an infinite sequence of dates: static IEnumerable<DateTime> GetDates(DateTime start) { DateTime current = start; while (true) { ... more 10/19/2017 3:13:14 PM

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Unpacking a BIG string with gzip

I'm facing a big problem, I have to unzip a BIG string, however I can not divide it to unpack, and when I try to unzip it total, it only unpacks a piece. Link to the compressed...
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I would try to stream the operation - you don't need everything in memory all at one time. You can set your GZipStream to write straight to your output file, then read a chunk of your original text file in at a time, convert the hex to... more 10/19/2017 1:28:22 PM

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Bigdecimal Not giving exact output in Java

Im adding three big decimals here, but it should give me accurate answer. I'm having two strings here and then converting to big decimal. Please dont ask why Im using strings....
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The problem is your use of new BigDecimal(100.05). The value of a is then 100.0499999999999971578290569595992565155029296875. If you had specified that value as a string instead, all would be well: BigDecimal a = new... more 10/19/2017 10:45:29 AM

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running a c# .net Console Application multiple time with different variables

I'm trying to automate a task. I have to repeat the task 14 times and want my application to do it for me. my application runs once without a problem. Can anyone explain how I do...
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I'd suggest passing an argument into the Main method which is a file containing all the URLs to fetch. You can then read all those URLs into a list or array (e.g. with File.ReadAllLines, and infer the output file from the URL. Move most of... more 10/18/2017 6:16:40 PM

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Avoid Google Calendar API adding an actual event in peoples calendars?

I am using the Google Calendar API with a service account. Idea is that we want to use it purely as an API backend, so we don't have to code it ourselves. That means we do not...
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It sounds like your application needs its own calendar - so create one (see Calendars.insert for how to do this programmatically). Whether you need a single calendar for the whole application, regardless of user (in which case you'd... more 10/16/2017 4:45:38 PM

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GetMethod equivalent in .NET Standard

In .NET Framework you can easily reflect methods. E.g.: var methodInfo = typeof(object).GetMethod("MemberwiseClone", bindingFlags); In a .NET Standard project, however, the...
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For almost all reflection in .NET Core 1.x, you need a TypeInfo instead of Type. There's an extension method of GetTypeInfo in the System.Reflection namespace, so you want: using System.Reflection; // For GetTypeInfo ... var methodInfo =... more 10/16/2017 11:36:51 AM

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name of class with generic parameters?

I'm trying to generate code for series of generic classes using T4. I want to know how to get full class name using reflection? public class Foo<TFirst, TSecond> {} var...
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You can access the type parameter names by reflection using Type.GetGenericArguments: using System; public class Foo<TFirst, TSecond> {} class Test { static void Main() { var type = typeof(Foo<,>); ... more 10/14/2017 2:18:28 PM

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does task.delay infinite code after it executed?

Just a quick question. We're having some misunderstanding here. for simplicity some code is removed: public async Task ConsumeAsync<T>(CancellationToken...
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Should the last logline be logged or not when a cancel is requested? No, because the task returned by Task.Delay will be faulted, as is normal when a task is cancelled. more 10/11/2017 7:14:16 AM

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Difference between suppressedException and cause

I have my own exception, thrown by my class, BrowserException. It may be because some internal problem, i.e. UnsupporderEncodingException. Now I have 2 options: ...
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A suppressed exception is one which would have happened if another exception hadn't occurred. I'm only aware of one case where this happens, which is with a try-with-resources statement. The JLS (14.20.3) says: Resources are closed in... more 10/11/2017 7:12:33 AM

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Joda time off by one error when counting days after 1918 03 24

Calculating the number of days between 1900-01-01 and a date after 1918-03-24 using Joda-Time seems to give an off-by-one result. Using Java 8 java.time gives the correct result....
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The problem is that your DateTimeFormatter is using the system default time zone. Ideally, you should parse to LocalDate values instead of DateTime, but you can fix it by using UTC for the formatter anyway: DateTimeFormatter dateDecoder =... more 10/10/2017 9:54:20 AM

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