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java Programming Glossary: admittedlyIs a Java hashmap really O(1)? http://stackoverflow.com/questions/1055243/is-a-java-hashmap-really-o1 referring to is an AVERAGE CASE lookup time which is an admittedly difficult nut to crack. The efficiency of a particular hashing..
How is Java's ThreadLocal implemented under the hood? http://stackoverflow.com/questions/1202444/how-is-javas-threadlocal-implemented-under-the-hood it quite elegantly gets around a lot of concurrency issues admittedly by taking advantage of being part of core Java but I can forgive..
http://stackoverflow.com/questions/1318645/javafx-or-swing and JavaFX 2 questions on SO tend to attract answers admittedly not as fast as Swing The Subjective opinion I prefer the L F..
Performance ConcurrentHashmap vs HashMap http://stackoverflow.com/questions/1378310/performance-concurrenthashmap-vs-hashmap the overhead of deciding which of the buckets to look in admittedly this is a relatively quick calculation but nevertheless it is..
Previously selected JTable cell triggers editor on key press, even when explicitly deselected http://stackoverflow.com/questions/14470230/previously-selected-jtable-cell-triggers-editor-on-key-press-even-when-explicit little demo which accomplishes a simple task in a probably admittedly convoluted way. The GUI shown below displays a column of icons..
UTF-16 to ASCII conversion in Java http://stackoverflow.com/questions/1490218/utf-16-to-ascii-conversion-in-java my answer or any of the others take account of this admittedly esoteric point. In fact dealing with codepoints 0x00FFFF in..
Is there a java library equivalent to file command in unix http://stackoverflow.com/questions/2729038/is-there-a-java-library-equivalent-to-file-command-in-unix improve this question A quick google search for the admittedly non obvious java magic file detection brings up a fairly nice..
Why is January month 0 in Java Calendar? http://stackoverflow.com/questions/344380/why-is-january-month-0-in-java-calendar Calendar Surprising bases 1900 as the year base in Date admittedly for deprecated constructors 0 as the month base in both Mutability..
http://stackoverflow.com/questions/415580/regex-named-groups-in-java but its last release was in 2002 and it didn't work for me admittedly I only tried briefly under java5. java regex share improve..
Why does Java's SSLSocket send a version 2 client hello? http://stackoverflow.com/questions/4682957/why-does-javas-sslsocket-send-a-version-2-client-hello SSLv2 client hello message length 110 But I have found two admittedly old references that say JSSE does not support SSL version 2..
How to get PID of process I've just started within java program? http://stackoverflow.com/questions/4750470/how-to-get-pid-of-process-ive-just-started-within-java-program you can easily get the value of this field. This is admittedly a hack but it might help. What do you need the PID for anyway..
Where's the official JSP tutorial http://stackoverflow.com/questions/4845032/wheres-the-official-jsp-tutorial is this way likely trying to push JSF forward. Which has admittedly its own advantages. Noted should be that Facelets can also be..
http://stackoverflow.com/questions/714172/poi-using-excel-templates in a POI generated .xls. I create the file with the macro admittedly as an .xls and then load it into my app populate with data and..
Is it ok if I omit curly braces in Java? http://stackoverflow.com/questions/8020228/is-it-ok-if-i-omit-curly-braces-in-java to the code above. It was remarkably hard to spot... admittedly this was years ago before I'd started unit testing which would..
Why main method in Java always needs arguments? http://stackoverflow.com/questions/10783190/why-main-method-in-java-always-needs-arguments analogous to the standard C and C entrypoint signatures. Admittedly some C C runtimes support other non standard entrypoints as..
http://stackoverflow.com/questions/15464111/run-cmd-commands-through-java changes to a different directory and runs dir from there. Admittedly I could just dir that directory without needing to cd to it..
http://stackoverflow.com/questions/1821545/simple-caesar-cipher-in-java negative values chars i char x 32 return new String chars Admittedly this treats 127 as a non control character which it isn't.....
http://stackoverflow.com/questions/1841461/unsigned-short-in-java Java doesn't have any unsigned data types except char . Admittedly you could use char it's a 16 bit unsigned type but that would..
Java protected fields vs public getters http://stackoverflow.com/questions/2279662/java-protected-fields-vs-public-getters detail which shouldn't impact other classes. Admittedly my view is occasionally seen as somewhat extreme... share improve..
Why does int num = Integer.getInteger(“123”) throw NullPointerException? http://stackoverflow.com/questions/3123349/why-does-int-num-integer-getinteger123-throw-nullpointerexception but rather it has to do with System.getProperty method. Admittedly this can be quite a surprise. It's unfortunate that the library..
Why is January month 0 in Java Calendar? http://stackoverflow.com/questions/344380/why-is-january-month-0-in-java-calendar long time and I'm sure I don't know half of the problems . Admittedly working with dates and times is tricky but aaargh anyway. Do..
Get the indices of an array after sorting? http://stackoverflow.com/questions/4859261/get-the-indices-of-an-array-after-sorting to go from there to the sorted array of actual items. Admittedly that means sorting an array of integers in a custom way which..
JPA Implementations - Which one is the best to use? [closed] http://stackoverflow.com/questions/576659/jpa-implementations-which-one-is-the-best-to-use with CascadeType.all set just didn't seem to work. Admittedly It may be my code that was wrong and I haven't had time to test..
Differences between Ant and Maven http://stackoverflow.com/questions/603189/differences-between-ant-and-maven links to JavaDoc and a few reports about your source code. Admittedly this is the simplest possible example project. A project which..
Initializing two threads with the same instance of a runnable http://stackoverflow.com/questions/9562505/initializing-two-threads-with-the-same-instance-of-a-runnable via shared data then it may be absolutely required Admittedly communicating via shared state is where threading often gets..
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