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Is null an Object?
...is not a subclass of java.lang.Object, but I never thought about it from a more philosophical point of view
– Andreas Dolk
Dec 12 '09 at 22:23
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Why do people still use primitive types in Java?
...ge, though, they aren't cached, so a new object is created. To make things more complicated, the JLS demands that at least 256 flyweights be cached. JVM implementers may add more if they desire, meaning this could run on a system where the nearest 1024 are cached and all of them return true... #awkw...
Bubble Sort Homework
...es again.
There are also minor little issues that would help the code be more efficient or readable.
In the for loop, you use the variable element. Technically, element is not an element; it's a number representing a list index. Also, it's quite long. In these cases, just use a temporary variabl...
Why would you use Expression rather than Func?
...a delegate is that you can compile the expression to a delegate - or to be more precise, compile it to a method and get the delegate to that method as a return value. But the expression tree itself is just data. The delegate does not exist when you use Expression<Func<...>> instead of ju...
What's an easy way to read random line from a file in Unix command line?
...y default) on *BSD systems (or Mac?). @Tracker1's perl one-liner below is more portable (and by my tests, is slightly faster).
– Adam Katz
Dec 19 '14 at 21:49
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Contains case insensitive
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The latter method is more correct; the former will fail for the Turkish I and any other such problematic uppercase/lowercase pairs: i18nguy.com/unicode/turkish-i18n.html
– Domenic
Jan 24 '12 at 20:44
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Representational state transfer (REST) and Simple Object Access Protocol (SOAP)
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SOAP is much more than sending data in an envelope. However, it's mostly used to send a BLOB to the server, ignoring whatever features SOAP also provides. So basically, most people use SOAP like REST with a standard envelope. (SOAP is a g...
How does one write code that best utilizes the CPU cache to improve performance?
...mproving cache line utilization helps in three respects:
It tends to fit more useful data in the cache, essentially increasing the effective cache size.
It tends to fit more useful data in the same cache line, increasing the likelyhood that requested data can be found in the cache.
It reduces the ...
.war vs .ear file
...t cases. A simple WAR with all classes in one archive is normal. Here is a more elaborate explanation: adam-bien.com/roller/abien/entry/ears_wars_and_size_matters
– Kaspars Rinkevics
Jun 28 '17 at 7:41
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What is the difference between Java RMI and RPC?
...ences to remote objects and invoke their methods, and also pass and return more remote object references that can be distributed among many JVM instances, so it's much more powerful.
RMI stands out when the need to develop something more complex than a pure client-server architecture arises. It's v...