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java Programming Glossary: efficientlyjava get file size efficiently http://stackoverflow.com/questions/116574/java-get-file-size-efficiently get file size efficiently While googling I see that using java.io.File#length can be..
Do you obfuscate your commercial Java code? http://stackoverflow.com/questions/12088/do-you-obfuscate-your-commercial-java-code some of those changes makes it impossible for the JVM to efficiently optimize the code. In effect it will actually degrade the performance.. some of those changes makes it impossible for the JVM to efficiently optimize the code. In effect it will actually degrade the performance..
http://stackoverflow.com/questions/1502841/reliable-data-serving then you need to develop a servlet which does the IO job efficiently i.e. do not unnecessarily store the entire data in memory e.g...
The most sophisticated way for creating comma-separated Strings from a Collection/Array/List? http://stackoverflow.com/questions/205555/the-most-sophisticated-way-for-creating-comma-separated-strings-from-a-collectio in the question can be written even more clearly and efficiently by taking care of the redundant trailing comma StringBuilder..
Why did java have the reputation of being slow? [closed] http://stackoverflow.com/questions/2163411/why-did-java-have-the-reputation-of-being-slow this by rolling custom memory management and doing malloc efficiently but it is not easy. Method calls are basically free and in some..
http://stackoverflow.com/questions/2231369/scanner-vs-bufferedreader I also know that the BufferedReader read files efficiently by using a buffer to avoid physical disk operations. My questions..
Why do I need to override the equals and hashCode methods in Java? http://stackoverflow.com/questions/2265503/why-do-i-need-to-override-the-equals-and-hashcode-methods-in-java How can I take the decision to implement these method efficiently java equals hashcode share improve this question It is not..
How do I parse JSON from a Java HTTPResponse? http://stackoverflow.com/questions/2845599/how-do-i-parse-json-from-a-java-httpresponse improve this question Two things which can be done more efficiently Use StringBuilder instead of StringBuffer since it's the faster..
Switch Statement with Strings in Java http://stackoverflow.com/questions/338206/switch-statement-with-strings-in-java depend on using integer constants for each case to execute efficiently. If the constants are dense they are used as an index after..
How can I get a list of all the implementations of an interface programmatically in Java? http://stackoverflow.com/questions/347248/how-can-i-get-a-list-of-all-the-implementations-of-an-interface-programmatically to implement your own class file parser that operated more efficiently instead of reflection. A byte code engineering library may help..
Replace all occurences of a String using StringBuilder? http://stackoverflow.com/questions/3472663/replace-all-occurences-of-a-string-using-stringbuilder isn't quite the same. Is there any way to this more efficiently without generating multiple Strings using the normal String..
How to iteratively generate k elements subsets from a set of size n in java? http://stackoverflow.com/questions/4504974/how-to-iteratively-generate-k-elements-subsets-from-a-set-of-size-n-in-java you should pick a list implementation that supports that efficiently. From the javadoc on LinkedList All of the operations perform..
How do you find all subclasses of a given class in Java? http://stackoverflow.com/questions/492184/how-do-you-find-all-subclasses-of-a-given-class-in-java called the Type Hierarchy that manages to show this quite efficiently. How does one go about and do it programmatically java class..
Interesting uses of sun.misc.Unsafe http://stackoverflow.com/questions/5574241/interesting-uses-of-sun-misc-unsafe can be used to develop arraylets a technique for efficiently breaking up large arrays into smaller objects to limit the real..
Virtual Memory Usage from Java under Linux, too much memory used http://stackoverflow.com/questions/561245/virtual-memory-usage-from-java-under-linux-too-much-memory-used memory map a JAR you can access the files within it very efficiently versus reading it from the start each time . The Sun JVM will..
How do you make a deep copy of an object in Java? http://stackoverflow.com/questions/64036/how-do-you-make-a-deep-copy-of-an-object-in-java new reference. Here's an article about how to do this efficiently. Caveats It's possible for classes to override serialization..
Stack with find-min/find-max more efficient than O(n)? http://stackoverflow.com/questions/7134129/stack-with-find-min-find-max-more-efficient-than-on to a stack that supports the following operations as efficiently as possible Push which adds a new element atop the stack Pop..
Is Java 100% object oriented? [closed] http://stackoverflow.com/questions/974583/is-java-100-object-oriented is that it doesn't provide the means to abstract ideas efficiently to extend the language where it has problems. And whenever this..
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