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java Programming Glossary: suchWhy 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 is to avoid data dependent branching in critical loops. such as in this example Update GCC 4.6.1 with O3 or ftree vectorize..
Why JSF calls getters multiple times http://stackoverflow.com/questions/2090033/why-jsf-calls-getters-multiple-times get up much higher when used in iterating JSF components such as h dataTable and ui repeat or here and there in a boolean.. using a bean management framework which uses proxies such as CDI. If there are for you really no other ways due to some..
What is the difference between JSF, Servlet and JSP? http://stackoverflow.com/questions/2095397/what-is-the-difference-between-jsf-servlet-and-jsp to hook on HTTP requests using the popular HTTP methods such as GET and POST . You can configure HttpServlet s to listen.. inside any of the overridden methods of HttpServlet such as doGet and doPost . JSF JavaServer Faces JSF is a component.. can be used in JSP or any other Java based view technology such as Facelets . Facelets is much more suited to JSF than JSP...
How to upload files to server using JSP/Servlet? http://stackoverflow.com/questions/2422468/how-to-upload-files-to-server-using-jsp-servlet file name file input type submit form After submitting such a form the binary multipart form data is available in the request.. the Internet. Many online sources have failed hard in this such as roseindia.net. See also uploading of pdf file . You should.. the getParameter still returns null . If you are targeting such a container and can't upgrade it then you need to extract the..
Overriding equals and hashCode in Java http://stackoverflow.com/questions/27581/overriding-equals-and-hashcode-in-java Also remember When using a hash based Collection or Map such as HashSet LinkedHashSet HashMap Hashtable or WeakHashMap make..
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 you want to get any information about the HTTP response such as the response body using URLConnection#getInputStream and..
How do servlets work? Instantiation, session variables and multithreading http://stackoverflow.com/questions/3106452/how-do-servlets-work-instantiation-session-variables-and-multithreading provides access to all information of the HTTP request such as the request headers and the request body. The response object.. to control and send the HTTP response the way you want such as setting headers and the body usually with HTML content from..
How do I write a correct micro-benchmark in Java? http://stackoverflow.com/questions/504103/how-do-i-write-a-correct-micro-benchmark-in-java classes . Rule 2 is your first line of defense against such effects. Rule 5 Be aware of deoptimization and recompilation.. used at all. Rule 2 is your first line of defense against such effects. Rule 6 Use appropriate tools to read the compiler's..
How to choose the right bean scope? http://stackoverflow.com/questions/7031885/how-to-choose-the-right-bean-scope etc . Use the session scope for client specific data such as the logged in user and user preferences language etc . Use.. the application scope for application wide data constants such as dropdown lists which are the same for everyone. Abusing an..
Java String.equals versus == [duplicate] http://stackoverflow.com/questions/767372/java-string-equals-versus are equal. Note that string constants are usually interned such that two constants with the same value can actually be compared..
http://stackoverflow.com/questions/1183645/eval-in-scala an eval function just like Java does not have an eval . Such a function wouldn't really make sense for either of these languages..
Does Java have the '@' character to escape string quotes? http://stackoverflow.com/questions/2018556/does-java-have-the-character-to-escape-string-quotes quotes double quotes share improve this question No. Such a feature is not available in Java. From the Sun docs When an..
How do I use 3des encryption/decryption in Java? http://stackoverflow.com/questions/20227/how-do-i-use-3des-encryption-decryption-in-java System.out.println Invalid Algorithm catch javax.crypto.NoSuchPaddingException e System.out.println No Such Padding catch java.security.NoSuchAlgorithmException.. e System.out.println No Such Padding catch java.security.NoSuchAlgorithmException e System.out.println.. e System.out.println No Such Padding catch java.security.NoSuchAlgorithmException e System.out.println No Such Algorithm catch..
Do/can abstract classes replace interfaces? http://stackoverflow.com/questions/2124951/do-can-abstract-classes-replace-interfaces static and final and they can contain implemented methods. Such abstract classes are similar to interfaces except that they..
How to upload files to server using JSP/Servlet? http://stackoverflow.com/questions/2422468/how-to-upload-files-to-server-using-jsp-servlet used and implicitly tested by millions of users for years. Such a library has proven its robustness. When you're not on Servlet..
How to demonstrate race conditions around values that aren't published properly? http://stackoverflow.com/questions/2624638/how-to-demonstrate-race-conditions-around-values-that-arent-published-properly what happens remove the sleep if you use your Holder2 . Such race conditions might be rare or not existant on your particular..
What is the security risk of object reflection? http://stackoverflow.com/questions/3002904/what-is-the-security-risk-of-object-reflection CPU or consuming all memory up to a OutOfMemoryException . Such concerns need to be addressed by other means typically at the..
How do you format the day of the month to say “11th”, “21st” or “23rd” in Java? http://stackoverflow.com/questions/4011075/how-do-you-format-the-day-of-the-month-to-say-11th-21st-or-23rd-in-java information is repeated it opens the chance for a bug. Such a bug actually exists in the table for 7tn 17tn and 27tn this..
http://stackoverflow.com/questions/4371505/gc-overhead-limit-exceeded the application is stopped count toward excessive GC time. Such collections are typically due to a concurrent mode failure or..
Spring SimpleFormController in 3.0 http://stackoverflow.com/questions/4734259/spring-simpleformcontroller-in-3-0 you should use simple classes annotated by @Controller . Such controller can handle more than one request. Each request is..
What optimizations can I expect from Dalvik and the Android toolchain? http://stackoverflow.com/questions/4912695/what-optimizations-can-i-expect-from-dalvik-and-the-android-toolchain a basic block sometimes as short as a single instruction. Such traces will be stitched together at runtime through a technique..
java: “final” System.out, System.in and System.err? http://stackoverflow.com/questions/5951464/java-final-system-out-system-in-and-system-err setAccessible true on them or by using Unsafe methods . Such techniques are used during deserialization by Hibernate and..
When to use <ui:include>, tag files, composite components and/or custom components? http://stackoverflow.com/questions/6822000/when-to-use-uiinclude-tag-files-composite-components-and-or-custom-componen UIComponent with a single responsibility using pure XML. Such a composite component usually consists of a bunch of existing..
Is there a way to refer to the current type with a type variable? http://stackoverflow.com/questions/7354740/is-there-a-way-to-refer-to-the-current-type-with-a-type-variable leafMethod logic return self could also just return this Such classes make the pattern usable MyLeafClass mlc new MyLeafClass..
How can a KeyListener detect key combinations (e.g., ALT + 1 + 1) http://stackoverflow.com/questions/7851505/how-can-a-keylistener-detect-key-combinations-e-g-alt-1-1 OR'ed together to represent various combinations of keys. Such as KeyStroke.getKeyStroke KeyEvent.VK_SPACE java.awt.event.InputEvent.CTRL_DOWN_MASK..
Inconsistent performance applying ForegroundActions in a JEditorPane when reading HTML http://stackoverflow.com/questions/8523445/inconsistent-performance-applying-foregroundactions-in-a-jeditorpane-when-readin below I am unable to reproduce the effect you describe. Such anomalies may arise if Swing GUI objects are not constructed..
JPA: How do I specify the table name corresponding to a class at runtime? http://stackoverflow.com/questions/906671/jpa-how-do-i-specify-the-table-name-corresponding-to-a-class-at-runtime a given entity should be stored in one table or another. Such a move operation would implicitly require a delete from one..
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