Your map is entirely reasonable. You could create your own wrapper class if you wanted to, but I'd probably stick with the map for the moment. If Set<E> exposed an operation of "get the existing entry which is equal to this one" then... more 1/3/2016 8:29:30 AM

Yes, the count is the maximum number of bytes to be read in a call to Stream.Read, or the exact number of bytes to be written in a call to Stream.Write. Note that Stream.Read returns the actual number of bytes read, which may be less than... more 1/2/2016 1:33:05 PM

You just need a dependency on the System.Net.Sockets nuget package. Here's a complete example: Code: using System; using System.Net; using System.Net.Sockets; using System.Threading.Tasks; public class Program { public static void... more 1/2/2016 9:36:23 AM

It's an interpolated string literal, introduced in C# 6. It's broadly equivalent to: eventStream.ReceiveJoke += joke => Console.WriteLine(string.Format("Pretty nice joke: {0}, Thanks!!!", joke)); The compiler looks for braces... more 1/1/2016 6:12:04 PM

But for the first element i get 0.0 as a square root. why? Because you're not printing out the square root of the element - you're printing out the square root of the index. This: System.out.print(Math.sqrt(y)); should... more 1/1/2016 5:21:41 PM

Well, base64 represents 3 bytes in 4 characters... so to start with you just need to divide by 4 and multiply by 3. You then need to account for padding: If the text ends with "==" you need to subtract 2 bytes (as the last group of 4... more 12/31/2015 12:27:09 PM

The first thing to do is understand your structure. It's somewhat odd, because value is actually an array, containing a single object. You should work out what you would want to do if you ever had multiple objects there. Here's an example... more 12/29/2015 8:12:58 AM

I suspect the problem is that the only token sequence that can legitimately follow the keyword token of int in this case is . followed by class. The declaration statement you've got at the moment isn't valid because a local variable... more 12/25/2015 1:19:06 PM

It's an empty statement, that's all. It's perfectly legal, though usually useless. It's specified in section 14.6 of the JLS: An empty statement does nothing.   EmptyStatement:       ; ... more 12/24/2015 11:08:06 AM

What is the difference between those two ways of writing ? as I know both should work the same way. No, definitely not. In your first piece of code, if rs.getInt("purchased") returns a value other than 1, you assign a value of... more 12/23/2015 9:00:55 AM