java Programming Glossary: takenWhy is processing a sorted array faster than an unsorted array? http://stackoverflow.com/questions/11227809/why-is-processing-a-sorted-array-faster-than-an-unsorted-array after it switches direction. Quick visualization T branch taken N branch not taken data 0 1 2 3 4 ... 126 127 128 129 130 ..... direction. Quick visualization T branch taken N branch not taken data 0 1 2 3 4 ... 126 127 128 129 130 ... 250 251 252 ... branch..
http://stackoverflow.com/questions/13022754/java-bouncing-ball the size and location of the ball pane. This means you've taken over the role as the layout manager... You need to randomize..
Java NIO FileChannel versus FileOutputstream performance / usefulness http://stackoverflow.com/questions/1605332/java-nio-filechannel-versus-fileoutputstream-performance-usefulness time2 System.currentTimeMillis System.out.println Time taken time2 time1 ms private static void useFileChannel throws Exception.. time2 System.currentTimeMillis System.out.println Time taken time2 time1 ms java optimization file nio operations share..
Inner class can access but not update values - AsyncTask http://stackoverflow.com/questions/18517400/inner-class-can-access-but-not-update-values-asynctask result delegate.processFinish result Interface example taken from linked answer above and adjusted commented for clarity...
http://stackoverflow.com/questions/2658922/xss-prevention-in-java Any decent ORM library Hibernate and so on have already taken this into account. If you're working with raw JDBC you need..
How to avoid Java Code in JSP-Files? http://stackoverflow.com/questions/3177733/how-to-avoid-java-code-in-jsp-files to Java JSP JSTL EL whatever this problem needs to be taken into account in every webapplication you develop. The problem..
Change private static final field using Java reflection http://stackoverflow.com/questions/3301635/change-private-static-final-field-using-java-reflection cache mutating a String etc Caveats Extreme care should be taken whenever you do something like this. It may not work because..
What is the “Execute Around” idiom? http://stackoverflow.com/questions/341971/what-is-the-execute-around-idiom need to worry about the open clean up side it will be taken care of by executeWithFile . This is frankly painful in Java..
Why is January month 0 in Java Calendar? http://stackoverflow.com/questions/344380/why-is-january-month-0-in-java-calendar readers not to worry so much about why bad decisions were taken as to look at the whole gamut of nastiness in java.util.Calendar..
Unicode equivalents for \w and \b in Java regular expressions? http://stackoverflow.com/questions/4304928/unicode-equivalents-for-w-and-b-in-java-regular-expressions contradictions in Unicode properties which I think I 脎e taken care of but I left the double condition in the boundary just..
If profiler is not the answer, what other choices do we have? http://stackoverflow.com/questions/4387895/if-profiler-is-not-the-answer-what-other-choices-do-we-have of time F like 20 and N like 100 random time samples are taken then the number of samples that show the call point is a binomial.. are needed to locate it. For example if 3 samples are taken and a call point shows up on 2 of them it is highly likely to..
Why are only final variables accessible in anonymous class? http://stackoverflow.com/questions/4732544/why-are-only-final-variables-accessible-in-anonymous-class what would be happening... you'd be working with a copy taken at a different time . Likewise if you could make changes within..
Connection pooling options with JDBC: DBCP vs C3P0 [closed] http://stackoverflow.com/questions/520585/connection-pooling-options-with-jdbc-dbcp-vs-c3p0 whereas DBCP never recovered connections if the link was taken out from beneath it. Worse still DBCP was returning Connection.. years of sitting on a shelf the Apache Commons folk have taken DBCP out of dormancy and it is now once again an actively developed..
Efficiency of Java “Double Brace Initialization”? http://stackoverflow.com/questions/924285/efficiency-of-java-double-brace-initialization out to be 0 ms. Of course the timer resolution should be taken into account but it is likely to be under 15 ms seconds. So..
Is Java 100% object oriented? [closed] http://stackoverflow.com/questions/974583/is-java-100-object-oriented as first class objects was a compromise they had taken for speed purposes although I think in the long run it was a..
Java 256-bit AES Password-Based Encryption http://stackoverflow.com/questions/992019/java-256-bit-aes-password-based-encryption skey kgen.generateKey byte raw skey.getEncoded Code taken from here EDIT I was actually padding the password out to 256..
Difference between java.util.Random and java.security.SecureRandom http://stackoverflow.com/questions/11051205/difference-between-java-util-random-and-java-security-securerandom Generator to produce random values in java.util.Random . Taken from java.util.Random source code JDK 7u2 from a comment on..
Platform.Runlater and Task Javafx http://stackoverflow.com/questions/13784333/platform-runlater-and-task-javafx Why Can't we use PlatForm.runLater for long calculations Taken from below reference . Problem background thread which just..
Is JOptionPane.showMessageDialog thread safe? http://stackoverflow.com/questions/1595744/is-joptionpane-showmessagedialog-thread-safe java swing thread safety share improve this question Taken from the javax.swing package description Swing's Threading Policy..
How to subtract X days from a date using Java calendar? http://stackoverflow.com/questions/212321/how-to-subtract-x-days-from-a-date-using-java-calendar java calendar subtraction share improve this question Taken from the docs here Adds or subtracts the specified amount of..
Does Java casting introduce overhead? Why? http://stackoverflow.com/questions/2170872/does-java-casting-introduce-overhead-why is not feasible JVM must throw a ClassCastException. Taken from JavaWorld The cost of casting Casting is used to convert..
http://stackoverflow.com/questions/2171969/determine-whether-or-not-there-exist-two-elements-in-set-s-whose-sum-is-exactly elements in Set S whose sum is exactly x correct solution Taken from Introduction to Algorithms Describe a n lg n time algorithm..
How to create Java socket that is localhost only? http://stackoverflow.com/questions/2205073/how-to-create-java-socket-that-is-localhost-only java networking sockets share improve this question Taken from another question new ServerSocket 9090 0 InetAddress.getByName..
http://stackoverflow.com/questions/2424604/what-is-a-java-classloader Cases exist I know java share improve this question Taken from this nice tutorial from Sun Motivation Applications written..
http://stackoverflow.com/questions/2618059/in-java-what-does-nan-mean does this mean java nan share improve this question Taken from this page NaN stands for not a number . Nan is produced..
How to convert current date into string in java? http://stackoverflow.com/questions/2942857/how-to-convert-current-date-into-string-in-java
How to read or parse MHTML (.mht) files in java http://stackoverflow.com/questions/3230305/how-to-read-or-parse-mhtml-mht-files-in-java is trying to parse decompress .mht MHTML files Explanation Taken from a mht file From Saved by Windows Internet Explorer 7 It..
How to retrieve a list of available/installed fonts in android? http://stackoverflow.com/questions/3532397/how-to-retrieve-a-list-of-available-installed-fonts-in-android java android fonts share improve this question Taken from Mark Murphy's answer on the Android Developers mailing..
why hibernate changed HibernateException to RuntimeException (unchecked) http://stackoverflow.com/questions/4609870/why-hibernate-changed-hibernateexception-to-runtimeexception-unchecked your operations regarding Hibernate in try catch blocks. Taken from Java Persistence with Hibernate A history of exceptions..
Are there OAuth 2 server side PHP or Java implementations? [closed] http://stackoverflow.com/questions/4875420/are-there-oauth-2-server-side-php-or-java-implementations java php oauth oauth 2.0 share improve this question Taken from OAuth Wiki there seems to be one PHP implementation called..
Java performance: true vs. Boolean.TRUE http://stackoverflow.com/questions/6911563/java-performance-true-vs-boolean-true a register to zero. boolean isItTrue arg return true Taken in isolation this has to load a static reference from memory..
Java Generics: Accessing Generic Type at runtime http://stackoverflow.com/questions/9548779/java-generics-accessing-generic-type-at-runtime Generics Gotchas especially the sections The Road Not Taken Generifying Existing Classes and Implications of Erasure . ..
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