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When to use an assertion and when to use an exception
...e an exception to check for a condition in my code, I wonder when it is an appropriate time to use an assertion?
11 Answers...
How to copy a row and insert in same table with a autoincrement field in MySQL?
...ple of the stored procedure that I wrote to accomplish this task for a Web App that I am developing:
-- SET NOCOUNT ON added to prevent extra result sets from
-- interfering with SELECT statements.
SET NOCOUNT ON
-- Create Temporary Table
SELECT * INTO #tempTable FROM <YourTable> WHERE Id =...
Java NIO FileChannel versus FileOutputstream performance / usefulness
...is buffer size is ripe for tuning. I've settled on 4KB for one part of my application, 256KB for another. I suspect your code is suffering with such a large buffer. Run some benchmarks with buffers of 1KB, 2KB, 4KB, 8KB, 16KB, 32KB and 64KB to prove it to yourself.
Don't perform java benchmarks ...
Map.clear() vs new Map : Which one will be better? [duplicate]
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Complicated question. Let's see what happens.
You instantiate a new instance, which is backed with new array. So, garbage collector should clear all the key and values from the previous map, and clear the reference to itself. So O(n) algorithm is executed anyway...
What is the simplest and most robust way to get the user's current location on Android?
...ationManager API on Android seems like it's a bit of a pain to use for an application that only needs an occasional and rough approximation of the user's location.
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Why would you ever implement finalize()?
... Only use if you need that "belt and suspenders" safety in a long-running app.
I see that as of Java 9, Object.finalize() is deprecated! They point us to java.lang.ref.Cleaner and java.lang.ref.PhantomReference as alternatives.
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What do the terms “CPU bound” and “I/O bound” mean?
... --/
so the memory bus quickly becomes the bottleneck, not the CPU.
This happens because adding two numbers takes a single CPU cycle, memory reads take about 100 CPU cycles in 2016 hardware.
So the CPU work done per byte of input data is too small, and we call this an IO-bound process.
The only way...
Validate a username and password against Active Directory?
...a user. Just be aware of this behavior and don't be too surprised if this happens :-) (thanks to @MikeGledhill for pointing this out!)
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How to hide close button in WPF window?
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Actually, this approach hides all three buttons (Min, Max and Close). Is it possible to just hide the Close button?
– newman
May 14 '13 at 14:58
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Google Guice vs. PicoContainer for Dependency Injection
...ibuted nature of the configuration i.e. it's not easy to see how our whole application is put together. It's a bit like AOP in this respect.
Spring - Spring is usually my default choice. That said, the XML can become cumbersome and the resulting slowdown annoying. I often end up using a combination ...