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java Programming Glossary: actuallyWhy 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 sorted and unsorted data. In the C case the hack is actually a tad slower than with the branch when the data is sorted. A..
What is the difference between JSF, Servlet and JSP? http://stackoverflow.com/questions/2095397/what-is-the-difference-between-jsf-servlet-and-jsp Language which can be used to access backend data actually the attributes which are available in page request session and..
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 difficult to understand area. In fact the chances of you actually correctly interpreting whatever numbers you get is extremely.. there is always a long discussion about what they actually mean that only results in a vague conclusion. Note we now have.. A lot of memory in Android and Linux systems in general is actually shared across multiple processes. So how much memory a processes..
Removing HTML from a Java String http://stackoverflow.com/questions/240546/removing-html-from-a-java-string java html parsing share improve this question This is actually dead simple with Jsoup . public static String html2text String..
http://stackoverflow.com/questions/2723397/java-generics-what-is-pecs behave as a Thing when you perform your operation. You actually cannot add anything to a Collection extends Thing because you..
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 will by default buffer the entire request body before actually sending it regardless of whether you've set a fixed content..
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 work from there you should know that a Service runs actually in the same thread of your app when you extends Service you..
When to use LinkedList<> over ArrayList<>? http://stackoverflow.com/questions/322715/when-to-use-linkedlist-over-arraylist for the capacity regardless of whether elements have actually been added. The default initial capacity of an ArrayList is..
How are Anonymous (inner) classes used in Java? http://stackoverflow.com/questions/355167/how-are-anonymous-inner-classes-used-in-java extras such as overloading methods without having to actually subclass a class. I tend to use it as a shortcut for attaching.. I can just instantiate an anonymous inner class without actually making a separate class. I only use this technique for quick..
How to: generic array creation http://stackoverflow.com/questions/529085/how-to-generic-array-creation i return a i unchecked weak typing . No type checking is actually done on any of the objects passed as argument. in that case..
read/write to Windows Registry using Java http://stackoverflow.com/questions/62289/read-write-to-windows-registry-using-java This is pure Java code. It uses reflection to work by actually accessing the private methods in the java.util.prefs.Preferences..
Java String.equals versus == [duplicate] http://stackoverflow.com/questions/767372/java-string-equals-versus interned such that two constants with the same value can actually be compared with but it's better not to rely on that. if usuario.equals.. in your code although you should still check that you've actually got some tokens in the datos array otherwise you'll get an array..
How to download and save a file from Internet using Java? http://stackoverflow.com/questions/921262/how-to-download-and-save-a-file-from-internet-using-java from the source channel into the filesystem cache without actually copying them. Check more about it here . Note The third parameter..
Java 256-bit AES Password-Based Encryption http://stackoverflow.com/questions/992019/java-256-bit-aes-password-based-encryption byte raw skey.getEncoded Code taken from here EDIT I was actually padding the password out to 256 bytes not bits which is too..
http://stackoverflow.com/questions/995514/https-connection-android javax.net.ssl.X509TrustManager yet none of the methods actually perform any work get a sample here . Good Luck share improve..
Initialization of an ArrayList in one line http://stackoverflow.com/questions/1005073/initialization-of-an-arraylist-in-one-line arraylist initialization share improve this question Actually probably the best way to initialize the ArrayList is the method..
Is a Java hashmap really O(1)? http://stackoverflow.com/questions/1055243/is-a-java-hashmap-really-o1 whether they are O 1 and if so how they achieve this Actually based on the answers it appears O 1 is actually wrong even for..
Immutability of Strings in Java http://stackoverflow.com/questions/1552301/immutability-of-strings-in-java change s1 s1.replace 'i' ' ' to s1 s1.replace 'Q' ' ' 1 Actually it is possible to mutate strings and other immutable objects..
Do I need <class> elements in persistence.xml? http://stackoverflow.com/questions/1780341/do-i-need-class-elements-in-persistence-xml Setup and configuration too for more details. EDIT Actually If you don't mind not being spec compliant Hibernate supports..
Problem building executable jar with maven http://stackoverflow.com/questions/1814526/problem-building-executable-jar-with-maven process executable jar share improve this question Actually I think that the answer given in the question you mentioned..
http://stackoverflow.com/questions/1832853/is-it-possible-to-create-an-uber-jar-containing-the-project-classes-and-the-pr maven plugin uberjar share improve this question Actually I didn't check what the maven shade plugin is doing exactly..
Choosing a Java Web Framework now? [closed] http://stackoverflow.com/questions/2084169/choosing-a-java-web-framework-now Flex and GWT but I know that Grails does have some fans . Actually I'd suggest to take a look at Matt Raible's presentations he..
What is difference between “Class.forName()” and “Class.forName().newInstance()”? http://stackoverflow.com/questions/2092659/what-is-difference-between-class-forname-and-class-forname-newinstance components they don't know anything before the runtime. Actually if you want to go further have a look at Ted Neward paper Understanding..
Java - when to use 'this' keyword http://stackoverflow.com/questions/2429062/java-when-to-use-this-keyword to use it I'm just asking for situations like this . Actually I tend to use the keyword purely for readability sake but what's..
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 will be available by HttpServletRequest#getParameter . Actually firing the HTTP request You can fire the HTTP request explicitly..
Recommended JSF 2.0 CRUD frameworks [closed] http://stackoverflow.com/questions/3180400/recommended-jsf-2-0-crud-frameworks edit @PostConstruct public void init list dao.list Actually you should retrieve the list from DAO. This is just for demo... new Item 3L item3 public void add dao.create item Actually the DAO should already have set the ID from DB. This is just..
Design Patterns web based applications http://stackoverflow.com/questions/3541077/design-patterns-web-based-applications among Servlets criteria to make new Servlet etc. Actually I have few entities on my home page and corresponding to each..
Httpclient 4, error 302. How to redirect? http://stackoverflow.com/questions/3658721/httpclient-4-error-302-how-to-redirect I keep cookies I keep a context and yet nothing. Actually it seems that the logon works because if I write incorrect parameters..
How to convert string to int in Java? http://stackoverflow.com/questions/5585779/how-to-convert-string-to-int-in-java and I want to return the number which it represents. Actually I have it first as a StringBuffer if that helps somehow. For..
http://stackoverflow.com/questions/5729806/encode-string-to-utf-8 using the wrong encoding . that's not entirely accurate. Actually the have an encoding but that's UTF 16 and can't be modified...
How to make a color transparent in a BufferedImage and save as PNG http://stackoverflow.com/questions/665406/how-to-make-a-color-transparent-in-a-bufferedimage-and-save-as-png filter return Toolkit.getDefaultToolkit .createImage ip Actually it acts on a gray level image so I just copy a RGB component..
How to prepopulate a <h:selectOneMenu> from a DB? http://stackoverflow.com/questions/6848970/how-to-prepopulate-a-hselectonemenu-from-a-db nameService.list ... getters setters etc Simple as that. Actually the T 's toString will be used to represent both the dropdown..
Java Generics Wildcarding With Multiple Classes http://stackoverflow.com/questions/745756/java-generics-wildcarding-with-multiple-classes generics bounded wildcard share improve this question Actually you can do what you want. If you want to provide multiple interfaces..
In log4j, does checking isDebugEnabled before logging improve performance? http://stackoverflow.com/questions/963492/in-log4j-does-checking-isdebugenabled-before-logging-improve-performance In case of assigning value to debugEnabled variable and Actually called by logger.debug method. I don't think that if we write..
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