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Difference between DTO, VO, POJO, JavaBeans?
...nt of the VM and platform.
Because these requirements are largely expressed as conventions rather than by implementing interfaces, some developers view JavaBeans as Plain Old Java Objects that follow specific naming conventions.
POJO
A Plain Old Java Object or POJO is a term initially int...
Verify a certificate chain using openssl verify
...lf-signed chain, then use system/browser CA file instead of your own. For example on OS X with openssl from homebrew use: openssl verify -CAfile /usr/local/etc/openssl/cert.pem -untrusted Intermediate.pem UserCert.pem
– Greg Dubicki
Mar 22 '17 at 13:35
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How does BLAS get such extreme performance?
Out of curiosity I decided to benchmark my own matrix multiplication function versus the BLAS implementation... I was to say the least surprised at the result:
...
Push git commits & tags simultaneously
...originally in this answer by SoBeRich, and in my own answer, as of git 2.4.x
git push --atomic origin <branch name> <tag>
(Note: this actually work with HTTPS only with Git 2.24)
Update May 2015
As of git 2.4.1, you can do
git config --global push.followTags true
If set to true enable...
What does a Ajax call response like 'for (;;); { json data }' mean? [duplicate]
I found this kind of syntax being used on Facebook for Ajax calls. I'm confused on the for (;;); part in the beginning of response. What is it used for?
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How can I split up a Git commit buried in history?
...git stash to hide away the part you haven't committed (or stash --keep-index before you even commit it), test, then git stash pop to return the rest to the work tree. Keep making commits until you get all modifications committed, i.e. have a clean work tree.
Run git rebase --continue to proceed appl...
How to check file MIME type with javascript before upload?
.../jpeg
image/png
...
Caveat: The MIME type is detected from the file extension and can be fooled or spoofed. One can rename a .jpg to a .png and the MIME type will be be reported as image/png.
✓ Proper header-inspecting method
To get the bonafide MIME type of a client-side file we can go ...
Generate random numbers using C++11 random library
...erating system (which will source from various locations, like RdRand for example).
Looking at this question / answer, it appears that uniform_real_distribution returns a number in the range [a, b), where you want [a, b]. To do that, our uniform_real_distibution should actually look like:
std::u...
Is PowerShell ready to replace my Cygwin shell on Windows? [closed]
...her I should learn PowerShell, or just stick with Cygwin /Perl scripts/Unix shell scripts, etc.
18 Answers
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JavaFX and OpenJDK
I'm trying to decide whether I could switch to JavaFX for the user interface of my Java application. Most of my users would be using the Oracle JRE, which has JavaFX integrated these days. However, some are using OpenJDK (on linux). This (old) question suggests that OpenJDK deals very badly with J...