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Why is subtracting these two times (in 1927) giving a strange result?
...me zones as simply being in their standard time for any instant before the start of 1900 UTC:
import java.util.TimeZone;
public class Test {
public static void main(String[] args) throws Exception {
long startOf1900Utc = -2208988800000L;
for (String id : TimeZone.getAvailableID...
How can I switch my signed in user in Visual Studio 2013?
...nt around far too much to find the solution to this:
Close Visual Studio
Start the Developer Command prompt installed with Visual Studio as an administrator.
type 'devenv /resetuserdata' ('wdexpress /resetuserdata' for Express SKUs)
Start Visual Studio Normally.
Worked for me.
...
fetch in git doesn't get all branches
...ory, after which somebody else has created a new branch, which I'd like to start working on. I read the manual, and it seems dead straight easy. Strangely it's not working, and all the posts I've found suggest I'm doing the right thing. So I'll subject myself to the lambasting, because there mus...
How to calculate the number of days between two dates? [duplicate]
...Year(), EndDate.getMonth(), EndDate.getDate()) -
Date.UTC(StartDate.getFullYear(), StartDate.getMonth(), StartDate.getDate())) / 86400000;
as a function:
function DaysBetween(StartDate, EndDate) {
// The number of milliseconds in all UTC days (no DST)
const oneDay = 1000 * 60...
How to install pip with Python 3?
...our computer, then add its folder (eg. C:\Python27\Scripts) to your path (Start / Edit environment variables). Now you should be able to run pip from the command line. Try installing a package:
pip install httpie
There you go (hopefully)!
...
How to make sure that string is valid JSON using JSON.NET
...be to Parse the string using JToken.Parse, and also to check if the string starts with { or [ and ends with } or ] respectively (added from this answer):
private static bool IsValidJson(string strInput)
{
if (string.IsNullOrWhiteSpace(strInput)) { return false;}
strInput = strInput.Trim();
...
Peak memory usage of a linux/unix process
...esn't require any external scripts or utilities and doesn't require you to start the process via another program like Valgrind or time, so you can use it for any process that's already running:
grep VmPeak /proc/$PID/status
(replace $PID with the PID of the process you're interested in)
...
Getting Spring Application Context
...rying to undeploy the application! Thus, you should set it and immediately start a try that unsets the ThreadLocal in the finally-part.
Of course, this still uses a singleton: the ThreadLocal. But the actual beans do not need to be anymore. The can even be request-scoped, and this solution also wor...
How can a web application send push notifications to iOS devices? [closed]
...ion to APNs).
If you want to implement the push notifications by yourself start with these tutorials:
Push API: Push Notifications on the Open Web
Apple Push Notification system: Configuring Safari Push Notifications
If you are looking for a drop in solution I would suggest Pushpad, which is ...
What is the difference between active and passive FTP?
...me here.
However, it then requests the server (on the command channel) to start listening on a port (at the servers discretion) rather than trying to establish a connection back to the client.
As part of this, the server also returns to the client the port number it has selected to listen on, so t...