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No appenders could be found for logger(log4j)?
...
This Short introduction to log4j guide is a little bit old but still valid.
That guide will give you some information about how to use loggers and appenders.
Just to get you going you have two simple approaches you can take.
First one is to just add thi...
Confusion: @NotNull vs. @Column(nullable = false) with JPA and Hibernate
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
Should methods in a Java interface be declared with or without a public access modifier?
...the option to leave out 'public' introduces.
Note the current wording at: https://docs.oracle.com/javase/specs/jls/se9/html/jls-9.html#jls-9.4
"A method in the body of an interface may be declared public or
private (§6.6). If no access modifier is given, the method is implicitly public. It i...
How to clear MemoryCache?
...digging some more, it seems that looking into Trim is not worth your time
https://connect.microsoft.com/VisualStudio/feedback/details/831755/memorycache-trim-method-doesnt-evict-100-of-the-items
How do I clear a System.Runtime.Caching.MemoryCache
...
How can I use a Python script in the command line without cd-ing to its directory? Is it the PYTHONP
...n system-dependent paths which Python already knows about.
Have a read of https://the-hitchhikers-guide-to-packaging.readthedocs.org/en/latest/ - 'The Hitchhiker's Guide to Packaging', and also http://docs.python.org/3/tutorial/modules.html - which explains PYTHONPATH and packages at a lower level....
Will iOS launch my app into the background if it was force-quit by the user?
...by the WWDC video, a quick search on the developer forums turned this up:
https://devforums.apple.com/message/873265#873265 (login required)
Also keep in mind that if you kill your app from the app switcher
(i.e. swiping up to kill the app) then the OS will never relaunch the
app regardless...
How to find the Number of CPU Cores via .NET/C#?
...gs)
{
int deviceCount = 0;
IntPtr deviceList = IntPtr.Zero;
// GUID for processor classid
Guid processorGuid = new Guid("{50127dc3-0f36-415e-a6cc-4cb3be910b65}");
try
{
// get a list of all processor devices
deviceList = SetupDiGetClassDevs(ref processorGuid,...
setImmediate vs. nextTick
...────────────────────┘
source: https://nodejs.org/en/docs/guides/event-loop-timers-and-nexttick/
Notice that the check phase is immediately after the poll phase. This is because the poll phase and I/O callbacks are the most likely places your calls to setI...
Generic TryParse
...truct<TimeSpan>(TimeSpan.TryParse);
else if (t == typeof(Guid) || t == typeof(Guid?))
AssignStruct<Guid>(Guid.TryParse);
else if (t == typeof(Version))
AssignClass<Version>(Version.TryParse);
}
private static v...
How do I integrate Ajax with Django applications?
...T request in this example. I am following one of the example of this post: https://djangopy.org/learn/step-up-guide-to-implement-ajax-in-django
models.py
Let's first create the model of Contact, having basic details.
from django.db import models
class Contact(models.Model):
name = models.Ch...