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MySQL IF NOT NULL, then display 1, else display 0
I'm working with a little display complication here. I'm sure there's an IF/ELSE capability I'm just overlooking.
7 Answer...
Java Reflection Performance
Does creating an object using reflection rather than calling the class constructor result in any significant performance differences?
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How can I override Bootstrap CSS styles?
...hat should bootstrap.css get an update, I'll suffer trying to re-include all my modifications. I'll sacrifice some load time for these styles, but it's negligible for the few styles I'm overriding.
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Can you connect to Amazon ElastiСache Redis outside of Amazon?
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...an Amazon ElastiCache Cluster, inside or outside a VPC, is never
allowed to be accessed from the Internet.
From here: http://aws.amazon.com/elasticache/faqs/#Can_I_access_Amazon_ElastiCache_from_outside_AWS
EDIT 2018: This answer above was accurate when written, however it is now possi...
Specify pane percentage in tmuxinator project
How can I specify a pane percentage in tmuxinator ?
1 Answer
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Getting the IP address of the current machine using Java
... has the following effect: it sets the destination for Send/Recv, discards all packets from other addresses, and - which is what we use - transfers the socket into "connected" state, settings its appropriate fields. This includes checking the existence of the route to the destination according to th...
Git for Windows: .bashrc or equivalent configuration files for Git Bash shell
I've just installed Git for Windows and am delighted to see that it installs Bash.
12 Answers
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What does “while True” mean in Python?
...e loop body indefinitely. It's an idiom that you'll just get used to eventually! Most languages you're likely to encounter have equivalent idioms.
Note that most languages usually have some mechanism for breaking out of the loop early. In the case of Python it's the break statement in the cmd == 'e...
How is CountDownLatch used in Java Multithreading?
...or n threads, specified while creating the CountDownLatch.
Any thread, usually the main thread of the application, which calls CountDownLatch.await() will wait until count reaches zero or it's interrupted by another thread. All other threads are required to count down by calling CountDownLatch.coun...
doGet and doPost in Servlets
...ould use doPost() when you want to intercept on HTTP POST requests. That's all. Do not port the one to the other or vice versa (such as in Netbeans' unfortunate auto-generated processRequest() method). This makes no utter sense.
GET
Usually, HTTP GET requests are idempotent. I.e. you get exactly t...