Browse questions answered by Jon Skeet

C#, Skipping Console.ReadLine(); Console.Read(); while in loop

If I run my code and insert correct value first time program works fine and does its job, but if I input wrong path and allow for loop to spin second time it skips...

The call isn't being skipped - the problem is that Console.Read() will only return after the user has hit return - although it will only consume the first character it reads. So suppose that (when prompted about skipping) the user... more 10/17/2014 12:38:03 PM

Base 64 decoding byte[] casted into a string

I got some encoded log information, casted into a string for transmitting purpose (the cast might be ugly but it works). I'm trying to cast it back to a byte[] in order to decode...

There are multiple problems here. In general, you need to use Base64.decode in order to reverse the result of Base64.encode: byte[] data = android.util.Base64.decode(to_decode, DEFAULT); In general, you should always ask yourself "How... more 10/17/2014 12:23:05 PM

Html5 time tag's datetime attribute day month order

What is the correct format for a html5 <time datetime="" /> attribute? Do days come before month or vice versa: <time datetime="yyyy-dd-mm"></time> or ...

It's yyyy-mm-dd, in order to comply with ISO-8601 and general sanity. From the W3C proposed recommendation: Note: While the formats described here are intended to be subsets of the corresponding ISO8601 formats, this specification... more 10/17/2014 11:52:58 AM

Understanding what is going on under the hood of Mockito framework

I have a problem understanding what is going on in the Mockito framework here. I have the following classes Model class public class KeyValueImpl{ private String key; ...

I suspect the problem is due to the order of the calls. Your last line is effectively: KeyValueImpl tmp = verify(keyValue); String value = expectationManager.getExpectedValue(); tmp.setValue(value); If Mockito is effectively using the... more 10/17/2014 11:02:11 AM

Posting minutiae byte array from applet to server

In Grails web application, I am trying to post minutiae (finger print) byte array from applet to server using rest API. This what i tried so for private String post(String...

This looks like a very bad idea to me: parameters.append(URLEncoder.encode(new String(regMin1),"UTF-8")); ... parameters.append(URLEncoder.encode(new String(regMin2),"UTF-8")); If regMin1 and regMin2 aren't actually UTF-8 text (and my... more 10/17/2014 10:18:50 AM

How to pre set a variable in a LINQ expression?

I'm creating an array of object based on data rows as shown below. While working, it bothers me a bit that I do as assignment to several fields by pulling the same value from a...

In a query expression, you can use let for this: return from DataRow row in table.Rows let preComputed = HeavyComputation(row["ID"]) select new Beep { // Use row and preComputed here }; To have the... more 10/17/2014 8:36:07 AM

Can the C# compiler insert constant values that auto increment on each usage at compile time?

Is there a way to have the C# compiler insert constant values that auto-increment at compile time? E.g. MyFunc(NEXT_CONSTANT); MyFunc(NEXT_CONSTANT); MyFunc(NEXT_CONSTANT); Would produce this code: MyFunc(1); MyFunc(2); MyFunc(3);

No, there's nothing in the language that does this. There are some grotty hacks that would allow you to keep track of the caller file/line/member, and auto-increment based on that (if you're using C# 5) - but it wouldn't really be the... more 10/17/2014 8:28:12 AM

Cannot convert type 'string' to 'byte[]'?

Hi I have to display student image on image box while selecting student ID from drop down list. The image is store in binary format in db.I want to display the image without...

Yes, the problem is here: byte[] barrImg = (byte[])(row["StudImage"].ToString()); You're calling ToString() on row["StudImage"]. That will result in a String. You're then casting that string to byte[] - but that doesn't work, because... more 10/17/2014 6:27:19 AM

How to convert String to date using Java in UNIX environment

I am trying to convert a String ("01-OCT-2014") into Date format. Below is my code for this. SimpleDateFormat formatter = new SimpleDateFormat("dd-MMM-yyyy"); Date d=...

I suspect the problem is simply that your Unix environment isn't running in an English locale - so when it tries to parse the month name, it's not recognizing "OCT" as a valid value. I would suggest using code like this: SimpleDateFormat... more 10/17/2014 6:17:35 AM

JodaTime LocalDate/LocalTime not Parsing with custom JSON Serializer classes

I have an object called ReportEvent which takes in a LocalTime as well as a LocalDate from the JodaTime API/framework. This ReportEvent is able to be written to JSON via google's...

The problem lies with the code you've got that's serializing the data. In your original question, you have this code when you're going to deserialize (retrieveGlobalDataFromStorage): final GsonBuilder builder = new GsonBuilder() ... more 10/16/2014 8:47:00 PM