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Things possible in IntelliJ that aren't possible in Eclipse?
...SPACE>"
and it will show you list of those beans which you can inject into that property.
Java
Very smart autocomplete in Java code:
interface Person {
String getName();
String getAddress();
int getAge();
}
//---
Person p;
String name = p.<CTRL-SHIFT-SPACE>
and it shows ...
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...
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...
Using Java 8's Optional with Stream::flatMap
...n the API, in that it's somewhat inconvenient to turn an Optional<T> into a zero-or-one length Stream<T>. You could do this:
Optional<Other> result =
things.stream()
.map(this::resolve)
.flatMap(o -> o.isPresent() ? Stream.of(o.get()) : Stream.empty())
...
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
...
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?
...
Use numpy array in shared memory for multiprocessing
...
Good point about order of operations. That's what I had in mind, though: create a user-specified number of shared arrays, then spawn a few child processes. Is that straightforward?
– Andrew
Jan...
Prompt for user input in PowerShell
... can use:
$pass = Read-Host 'What is your password?' -AsSecureString
To convert the password to plain text:
[Runtime.InteropServices.Marshal]::PtrToStringAuto(
[Runtime.InteropServices.Marshal]::SecureStringToBSTR($pass))
As for the type returned by $host.UI.Prompt(), if you run the code a...