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Change key pair for ec2 instance
... you will want to edit the authorized_keys file on the instance itself and convert to your new ssh public key.
The authorized_keys file is under the .ssh subdirectory under the home directory of the user you are logging in as. Depending on the AMI you are running, it might be in one of:
/home/ec2...
How to implement the factory method pattern in C++ correctly
...s for all class members without some preliminary calculation, then I might convert that constructor to a static method. The static method performs the preliminary calculations, then returns a value result via a private constructor which just does a member-wise initialisation.
I say 'might' because ...
Change color of PNG image via CSS?
...urns the needed filter to apply this color to png
CSS filter generator to convert from black to target hex color
for example i needed my png to have the following color #1a9790
then you have to apply the following filter to you png
filter: invert(48%) sepia(13%) saturate(3207%) hue-rotate(130deg...
@RequestBody and @ResponseBody annotations in Spring
... classpath (and have an <mvc:annotation-driven> setup), Spring would convert the incoming JSON to a UserStats object from the post body (because you added the @RequestBody annotation) and it would serialize the returned object to JSON (because you added the @ResponseBody annotation). So the Br...
How does facebook, gmail send the real time notification?
...sleading -- last i heard, they developed HipHop for the express purpose of converting PHP to C++, as PHP wasn't performing well enough.
– cHao
Oct 16 '11 at 7:14
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Why does 'continue' behave like 'break' in a Foreach-Object?
...re is a gotcha to be kept in mind when refactoring. Sometimes one wants to convert a foreach statement block into a pipeline with a ForEach-Object cmdlet (it even has the alias foreach that helps to make this conversion easy and make mistakes easy, too). All continues should be replaced with return....
Storing DateTime (UTC) vs. storing DateTimeOffset
...n record the location and timezone for that user.
Secondly if you want to convert for display, you need to have a table of all local time offset transitions for that timezone, simply knowing the current offset is not enough, because if you are showing a date/time from six months ago the offset will...
Spring Boot application as a Service
...s a Service in the Linux system? Is this recommended approach, or should I convert this app to war and install it into Tomcat?
...
Automapper - how to map to constructor parameters instead of property setters
...apped according to the conventions.
Also note that this is different from ConvertUsing in that convert using will not continue to map via the conventions, it will instead give you full control of the mapping.
Mapper.CreateMap<ObjectFrom, ObjectTo>()
.ConstructUsing(x => new ObjectTo(a...
How to read a single char from the console in Java (as the user types it)?
...stem.in.read() to read bytes from the console. A CharsetDecoder is used to convert bytes to characters.
It supports non-blocking input and mixing raw mode and normal line mode input.
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