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What is the point of “final class” in Java?
I am reading a book about Java and it says that you can declare the whole class as final . I cannot think of anything where I'd use this.
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Can I add extension methods to an existing static class?
...ds require an instance variable (value) for an object. You can however, write a static wrapper around the ConfigurationManager interface. If you implement the wrapper, you don't need an extension method since you can just add the method directly.
public static class ConfigurationManagerWrapper
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Redirect stderr and stdout in Bash
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edited Oct 7 '10 at 5:44
David Johnstone
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Advantage of switch over if-else statement
What's the best practice for using a switch statement vs using an if statement for 30 unsigned enumerations where about 10 have an expected action (that presently is the same action). Performance and space need to be considered but are not critical. I've abstracted the snippet so don't hate m...
Static method behavior in multi-threaded environment in java
...comes across this and is newish to Java. Here goes..
Memory in java is split up into two kinds - the heap and the stacks. The heap is where all the objects live and the stacks are where the threads do their work. Each thread has its own stack and can't access each others stacks. Each thread also ha...
abort: no username supplied (see “hg help config”)
I have added repository and at the time of commit I get error as
6 Answers
6
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What are the pros and cons of performing calculations in sql vs. in your application
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It depends on a lot of factors - but most crucially:
complexity of calculations (prefer doing complex crunching on an app-server, since that scales out; rather than a db server, which scales up)
volume of data (if you need ...
NumPy: function for simultaneous max() and min()
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Is there a function in the numpy API that finds both max and min with only a single pass through the data?
No. At the time of this writing, there is no such function. (And yes, if there were such a function, its performance would be significantly better than calling numpy.amin() and num...
Why are we not to throw these exceptions?
...uch terribly unspecific. You shouldn’t ever throw this exception because it simply does not contain any useful information. Calling code catching for exceptions couldn’t disambiguate the intentionally thrown exception (from your logic) from other system exceptions that are entirely undesired and...
Which HTML5 reset CSS do you use and why? [closed]
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Real talk: Despite the markdowns kaikai is right, you only need to reset *padding & margin to 0.
Though unfortunately 99% of us do not have resources or man power to keep up with the hundreds of browser versions out there. So a reset s...