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java Programming Glossary: knowWhy 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 with a flag. But in computers the processor doesn't know which direction a branch will go until the last moment. So how..
How to round a number to n decimal places in Java http://stackoverflow.com/questions/153724/how-to-round-a-number-to-n-decimal-places-in-java That is there should not be any trailing zeroes. I know one method of doing this is to use the String.format method..
What is a Null Pointer Exception? http://stackoverflow.com/questions/218384/what-is-a-null-pointer-exception cases the compiler will catch the problem and let you know that num may not have been initialized but sometime you write..
How to discover memory usage of my application in Android http://stackoverflow.com/questions/2298208/how-to-discover-memory-usage-of-my-application-in-android memory usage of my application in Android I would like to know how I can find the memory used on my Android application programmatically...
How to upload files to server using JSP/Servlet? http://stackoverflow.com/questions/2422468/how-to-upload-files-to-server-using-jsp-servlet this is a precise and tedious work which requires precise knowledge of RFC2388 . You shouldn't try to do this on your own or.. but it is workable and easier to use if you already know the input field names beforehand like as you would do with getParameter..
Is List<Dog> a subclass of List<Animal>? Why aren't Java's generics implicitly polymorphic? http://stackoverflow.com/questions/2745265/is-listdog-a-subclass-of-listanimal-why-arent-javas-generics-implicitly-p can't add a Cat to a List extends Animal because you don't know it's a List Cat . You can retrieve a value and know that it.. don't know it's a List Cat . You can retrieve a value and know that it will be an Animal but you can't add arbitrary animals... that case you can add an Animal to it safely but you don't know anything about what might be retrieved from it because it could..
How to use java.net.URLConnection to fire and handle HTTP requests? http://stackoverflow.com/questions/2793150/how-to-use-java-net-urlconnection-to-fire-and-handle-http-requests and consorts yourself. Preparing We first need to know at least the URL and the charset. The parameters are optional.. new URL url .openConnection ... Note that this is known to not always work properly in all circumstances. If it fails.. contentLength But if the content length is really not known beforehand then you can make use of chunked streaming mode..
How to call SOAP web service in Android http://stackoverflow.com/questions/297586/how-to-call-soap-web-service-in-android a slightly non trivial task on Android at this time. Not knowing NetBeans I can't speak to the tools available there but I..
Download a file with Android, and showing the progress in a ProgressDialog http://stackoverflow.com/questions/3028306/download-a-file-with-android-and-showing-the-progress-in-a-progressdialog file and show the current progress in a ProgressDialog. I know how to do the ProgressDialog but I'm not sure how to display.. the progress.... if fileLength 0 only if total length is known publishProgress int total 100 fileLength output.write data.. super.onProgressUpdate progress if we get here length is known now set indeterminate to false mProgressDialog.setIndeterminate..
How to avoid Java Code in JSP-Files? http://stackoverflow.com/questions/3177733/how-to-avoid-java-code-in-jsp-files to avoid Java Code in JSP Files I'm new to Java EE and I know that something like the following three lines x 1 request.getParameter.. Redirect to home page. else request.setAttribute message Unknown username password. Please retry. Store error message in request..
How to create a Java String from the contents of a file? http://stackoverflow.com/questions/326390/how-to-create-a-java-string-from-the-contents-of-a-file in memory at once. It is safest to apply to files that you know to be small relative to the available memory. For reading large..
In Java, what is the best way to determine the size of an object? http://stackoverflow.com/questions/52353/in-java-what-is-the-best-way-to-determine-the-size-of-an-object Maybe that is a different question but I'd still like to know. java memory share improve this question You can use the..
How to: generic array creation http://stackoverflow.com/questions/529085/how-to-generic-array-creation What does that mean checked strong typing . GenSet knows explicitly what type of objects it contains i.e. its constructor.. s Use Array native method to create array of a type only known at run time @SuppressWarnings unchecked final E a E Array.newInstance.. GenSet int s a new Foo s ... All of this results from a known and deliberate weakness of generics in Java it was implemented..
read/write to Windows Registry using Java http://stackoverflow.com/questions/62289/read-write-to-windows-registry-using-java using java java registry share improve this question I know this question is old but it is the first search result on google..
Java GUI listeners without AWT http://stackoverflow.com/questions/6255106/java-gui-listeners-without-awt use AWT in my programs because it is outdated. I already know about light and heavyweight components the main problem is the..
Should I avoid the use of set(Preferred|Maximum|Minimum)Size methods in Java Swing? http://stackoverflow.com/questions/7229226/should-i-avoid-the-use-of-setpreferredmaximumminimumsize-methods-in-java-swi should I use them In which context For what purposes don't know personally I think of it as an api design accident. Slightly..
Android: How to Know an IP Address is a Wifi IP Address? http://stackoverflow.com/questions/10683495/android-how-to-know-an-ip-address-is-a-wifi-ip-address How to Know an IP Address is a Wifi IP Address I want to know the whether..
java.sql.SQLException: - ORA-01000: maximum open cursors exceeded http://stackoverflow.com/questions/12192592/java-sql-sqlexception-ora-01000-maximum-open-cursors-exceeded analyze it Please make me aware more about it. Soluion To Know opened cursor in Oracle DB for username VELU Go to ORALCE machine..
Why do floating points have signed zeros? http://stackoverflow.com/questions/13544342/why-do-floating-points-have-signed-zeros on signed zero What Every Computer Scientist Should Know About Floating Point Arithmetic See Signed Zero section PDF..
Floating point arithmetic not producing exact results in Java http://stackoverflow.com/questions/1661273/floating-point-arithmetic-not-producing-exact-results-in-java . Then read What Every Computer Scientist Should Know About Floating Point Arithmetic for the background of why you're..
whats the difference between float & double in java http://stackoverflow.com/questions/16627813/whats-the-difference-between-float-double-in-java computation. Check What Every Computer Scientist Should Know About Floating Point Arithmetic for more share improve this..
Why does this subtraction not equal zero? http://stackoverflow.com/questions/2002821/why-does-this-subtraction-not-equal-zero see the article What Every Computer Scientist Should Know About Floating Point Arithmetic for a detailed explanation of..
http://stackoverflow.com/questions/2356137/read-large-files-in-java file in many 100 small files for example smaller files. I Know generally how to do it using a BufferedReader but I would like..
replace special characters in string in java http://stackoverflow.com/questions/2608205/replace-special-characters-in-string-in-java Every Software Developer Absolutely Positively Must Know About Unicode and Character Sets No Excuses Unicode How to get..
What is the best library for Java to grid/cluster-enable your application? [closed] http://stackoverflow.com/questions/383920/what-is-the-best-library-for-java-to-grid-cluster-enable-your-application for GridGain and I was very impressed with it. Know of any others java grid load balancing gridgain share improve..
Speed up application start by adding own application classes to classes.jsa http://stackoverflow.com/questions/4692076/speed-up-application-start-by-adding-own-application-classes-to-classes-jsa you have it The classpath of these classes you have it Know how to recalculate the checksum you have it dump the new file..
PDF to image using Java [duplicate] http://stackoverflow.com/questions/4886042/pdf-to-image-using-java to bmp for us just as a guide to modify for your needs Know you need the env vars for gs to work pushd setlocal Set BIN_DIR..
Know of any Java garbage collection log analysis tools? http://stackoverflow.com/questions/541832/know-of-any-java-garbage-collection-log-analysis-tools of any Java garbage collection log analysis tools I'm looking..
Is there a cookbook guide for GC problems? http://stackoverflow.com/questions/6871213/is-there-a-cookbook-guide-for-gc-problems mentioned analysis tools. Some candidates are listed here Know of any Java garbage collection log analysis tools share improve..
Know if a file is a image in Java/Android http://stackoverflow.com/questions/9244710/know-if-a-file-is-a-image-in-java-android if a file is a image in Java Android Given a file path what..
Why does String.hashCode() in Java have many conflicts? [closed] http://stackoverflow.com/questions/9406775/why-does-string-hashcode-in-java-have-many-conflicts all lowercase and also with the first letter capitalized . Know how many collided Two Siblings and Teheran an alternate spelling..
JComboBox returning values Java http://stackoverflow.com/questions/9440368/jcombobox-returning-values-java from helpStringFirst else textForLabel Flight from Un Know String helpStringSecond str2.trim if helpStringSecond null.. textForLabel to helpStringSecond else textForLabel to Un Know final String pushTextForLabel textForLabel SwingUtilities.invokeLater..
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