java Programming Glossary: doesn't
Why 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 the direction with a flag. But in computers the processor doesn't know which direction a branch will go until the last moment...
What is the equivalent of the C++ Pair<L,R> in Java? http://stackoverflow.com/questions/156275/what-is-the-equivalent-of-the-c-pairl-r-in-java construct in Java. The main argument is that a class Pair doesn't convey any semantics about the relationship between the two.. key value rather than a generic Pair first second that doesn't tell me anything about what it's supposed to do. share improve..
getResourceAsStream() vs FileInputStream http://stackoverflow.com/questions/2308188/getresourceasstream-vs-fileinputstream the two methods and why does one work while the other doesn't java file io web applications fileinputstream share improve..
What is the reason behind “non-static method cannot be referenced from a static context”? http://stackoverflow.com/questions/290884/what-is-the-reason-behind-non-static-method-cannot-be-referenced-from-a-static share improve this question You can't call something that doesn't exist. Since you haven't created an object the non static method.. Since you haven't created an object the non static method doesn't exist yet. A static method by definition always exists. share..
How do servlets work? Instantiation, session variables and multithreading http://stackoverflow.com/questions/3106452/how-do-servlets-work-instantiation-session-variables-and-multithreading web.xml which defaults to 30 minutes. So when the client doesn't visit the webapp anymore for over 30 minutes then the servletcontainer..
JSTL in JSF2 Facelets… makes sense? http://stackoverflow.com/questions/3342984/jstl-in-jsf2-facelets-makes-sense UIViewRoot#encodeAll . So JSF UI components and JSTL tags doesn't run in sync as you'd expect from the coding. You can visualize..
Setting the default Java character encoding? http://stackoverflow.com/questions/361975/setting-the-default-java-character-encoding file.encoding UTF 8 And the property gets set but it doesn't seem to cause the final getBytes call below to use UTF8 System.setProperty..
Generating random numbers in a range with Java http://stackoverflow.com/questions/363681/generating-random-numbers-in-a-range-with-java that means 5 10 5 Math.random 10 5 But this is still doesn't include Max and you are getting a double value. In order to..
Migrating from JSF 1.2 to JSF 2.0 http://stackoverflow.com/questions/4441713/migrating-from-jsf-1-2-to-jsf-2-0 in mind that the new JSF 2.0 provided implicit navigation doesn't scan for the presence of the file it will go to outcome.xhtml..
Can a progress bar be used in a class outside main? http://stackoverflow.com/questions/4637215/can-a-progress-bar-be-used-in-a-class-outside-main frame appears when the code is run but the progress bar doesn't update until all calculations are completed. import java.awt...
Getting A File's Mime Type In Java http://stackoverflow.com/questions/51438/getting-a-files-mime-type-in-java Mime Util. The first gave me memory exceptions the second doesn't close its streams off properly. I was just wondering if anyone..
Creating a custom button in Java with JButton http://stackoverflow.com/questions/5751311/creating-a-custom-button-in-java-with-jbutton I have created a class that extends AbstractButton but it doesn't seem to be sending events to the ActionListener when I click..
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 be the only solution when a composite component doesn't suffice. An example can be found in my answer on those questions..
Why is subtracting these two times (in 1927) giving a strange result? http://stackoverflow.com/questions/6841333/why-is-subtracting-these-two-times-in-1927-giving-a-strange-result TZDB itself has some data going back earlier than that and doesn't rely on any idea of a fixed standard time which is what getRawOffset..
How to choose the right bean scope? http://stackoverflow.com/questions/7031885/how-to-choose-the-right-bean-scope here . Abusing a view scoped bean for request scoped data doesn't affect the client but it unnecessarily occupies server memory...
Can't get ArrayIndexOutOfBoundsException from Future<?> and SwingWorker if thread starts Executor http://stackoverflow.com/questions/7053865/cant-get-arrayindexoutofboundsexception-from-future-and-swingworker-if-threa like as this code pretty ignores that element in Vector doesn't exist my question how to is possible to catch this exception..
How to reference components in JSF ajax? Cannot find component with identifier “foo” in view http://stackoverflow.com/questions/8634156/how-to-reference-components-in-jsf-ajax-cannot-find-component-with-identifier a relatively expensive job by the way . If this all still doesn't work then verify if you aren't using h form prependId false..
Java 256-bit AES Password-Based Encryption http://stackoverflow.com/questions/992019/java-256-bit-aes-password-based-encryption selected by a SecureRandom makes a good salt&mdash which doesn't need to be kept secret with the recipient out of band. Then..
Which loop has better performance? Why? http://stackoverflow.com/questions/110083/which-loop-has-better-performance-why is Best Use your second option for ... String s ... Scope Doesn't Affect Performance If you disassemble code the compiled from..
Convert a string representation of a hex dump to a byte array using Java? http://stackoverflow.com/questions/140131/convert-a-string-representation-of-a-hex-dump-to-a-byte-array-using-java and with negative byte values unlike Byte.parseByte Doesn't convert the String into a char or create StringBuilder and String..
Java Runtime.maxMemory incorrect? http://stackoverflow.com/questions/1463868/java-runtime-maxmemory-incorrect 8672 root 20 0 1284m 156m 4296 S 0.3 60.9 0 33.35 java Doesn't that show 156M of ram used Any ideas what is going on java..
Why is Java's Double.compare(double, double) implemented the way it is? http://stackoverflow.com/questions/1726254/why-is-javas-double-comparedouble-double-implemented-the-way-it-is Hi mum if m.get Double.NaN null this wont be executed. Doesn't make a lot of sense does it So the Java designers decided rightly..
Is there a WebSocket client implemented for .NET? http://stackoverflow.com/questions/2064641/is-there-a-websocket-client-implemented-for-net Here's a quick first pass at porting that Java code to C#. Doesn't support SSL mode and has only been very lightly tested but it's..
Set margins in a LinearLayout programmatically http://stackoverflow.com/questions/2481455/set-margins-in-a-linearlayout-programmatically Verbose lp.weight 1.0f This is critical. Doesn't work without it. buttonsView.addView btn lp ViewGroup.LayoutParams..
How is Java platform-independent when it needs a JVM to run? http://stackoverflow.com/questions/2748910/how-is-java-platform-independent-when-it-needs-a-jvm-to-run and I'm confused about the topic of platform independence. Doesn't independent imply that Java code should run on any machine and..
jdbc connection pooling http://stackoverflow.com/questions/2835090/jdbc-connection-pooling trouble getting started..any suggestions welcome. Update Doesn't javax.sql or java.sql have pooled connection implementations..
Difference between volatile and synchronized in JAVA (j2me) http://stackoverflow.com/questions/3519664/difference-between-volatile-and-synchronized-in-java-j2me to miss an update What do they mean by read update write Doesn't a write also an update or do they simply mean that the update..
Why are you not able to declare a class as static in Java? http://stackoverflow.com/questions/3584113/why-are-you-not-able-to-declare-a-class-as-static-in-java staticNestedClass new OuterClass.StaticNestedClass Doesn't work private OuterClass.InnerClass innerClass new OuterClass.InnerClass..
What is the purpose of the expression “new String(…)” in Java? http://stackoverflow.com/questions/390703/what-is-the-purpose-of-the-expression-new-string-in-java open to interpretation . Pitfall of Assuming what the Doc Doesn't State In response to the comments which keep coming in observe..
Java final modifier http://stackoverflow.com/questions/4012167/java-final-modifier could do anything about it you can say bugs are intended Doesn't parse. Can't make friends mutable with other friends and immutable..
Line-breaking widget layout for Android http://stackoverflow.com/questions/549451/line-breaking-widget-layout-for-android widthMeasureSpec The next line is WRONG Doesn't take into account requested MeasureSpec mode int height MeasureSpec.getSize..
Is Integer Immutable http://stackoverflow.com/questions/5560176/is-integer-immutable result 6. So effectively the value of a has changed. Doesn't that mean Integer is mutable Secondary question and a little..
Cast Int to enum in Java http://stackoverflow.com/questions/5878952/cast-int-to-enum-in-java MyEnum EnumValue1 EnumValue2 MyEnum enumValue MyEnum x Doesn't work java casting enums ordinal share improve this question..
Is there a difference between String concat and the + operator in Java? [duplicate] http://stackoverflow.com/questions/693597/is-there-a-difference-between-string-concat-and-the-operator-in-java those all references are lost. String mystr str mystr end Doesn't this also create 3 objects in the string pool String mystr str..
Hiding instance variables of a class http://stackoverflow.com/questions/7794621/hiding-instance-variables-of-a-class System.out.println parent.var prints out 1 instead of 2 Doesn't this completely circumvent the whole point of field hiding If..
Java appending XML docs to existing docs http://stackoverflow.com/questions/883987/java-appending-xml-docs-to-existing-docs root3 doc3.appendChild root3 root3.appendChild root1 Doesn't work DOMException root3.appendChild doc3.importNode root1 true.. doc3.importNode root1 true root3.appendChild root2 Doesn't work DOMException root3.appendChild doc3.importNode root2 true..
How do I use custom roles/authorities in Spring Security? http://stackoverflow.com/questions/986892/how-do-i-use-custom-roles-authorities-in-spring-security and only use this role in the config everything works. Doesn't work http auto config true intercept url pattern restricted..
Why passing {a, b, c} to a method doesn't work? http://stackoverflow.com/questions/1017486/why-passing-a-b-c-to-a-method-doesnt-work 1 QuickSort sort new QuickSort a ################### ### DOESN'T WORK ## ################### QuickSort sort new QuickSort 8 12..
JTable: sorting by Integer http://stackoverflow.com/questions/12270738/jtable-sorting-by-integer model 'Personal_model' i also set rowsorter. BUT ALL THIS DOESN'T WORK help me pls modeltable new Personal_model data col table..
Why is paint()/paintComponent() never called? http://stackoverflow.com/questions/1676187/why-is-paint-paintcomponent-never-called ilt new ImageLoadTest frame.add ilt update the screen DOESN'T WORK. only works if I call frame.paintAll frame.getGraphics.. background ilt.setBackground Color.BLACK update the screen DOESN'T WORK even if I call paintAll .. ilt.repaint frame.repaint have..
BitmapFactory.decodeStream returning null when options are set http://stackoverflow.com/questions/2503628/bitmapfactory-decodestream-returning-null-when-options-are-set Bitmap img BitmapFactory.decodeStream is null options DOESN'T WORK InputStream is connection.getInputStream Bitmap img BitmapFactory.decodeStream..
Varying behavior for possible loss of precision http://stackoverflow.com/questions/2696812/varying-behavior-for-possible-loss-of-precision b x compiles fine But this doesn't byte b 1 int x 5 b b x DOESN'T COMPILE You need to explicitly cast in this case byte b 1 int..
Backreferences in lookbehind http://stackoverflow.com/questions/2734977/backreferences-in-lookbehind behind me a character is repeated twice. String REGEX1 . 1 DOESN'T WORK String REGEX2 . 1 .. WORKS System.out.println java.util.Arrays.toString..
Why is Collection<String>.class Illegal? http://stackoverflow.com/questions/2745193/why-is-collectionstring-class-illegal Object o someString FINE Class Object klazz String.class DOESN'T COMPILE cannot convert from Class String to Class Object Depending.. this also doesn't compile void T test Class klazz T.class DOESN'T COMPILE Illegal class literal for the type parameter T Basically..
How to use an output parameter in Java? http://stackoverflow.com/questions/2824910/how-to-use-an-output-parameter-in-java oPerson null if CheckAddress 5556 oPerson print oPerson DOESN'T WORK Java passes by value String is immutable private boolean.. String oPerson on search succeeded oPerson something DOESN'T WORK return true on search failed return false Use a String..
What is microbenchmarking? http://stackoverflow.com/questions/2842695/what-is-microbenchmarking entirely sure what it means so What DOES it mean and what DOESN'T it mean What are some examples of what IS and ISN'T microbenchmarking..
Ant string functions? http://stackoverflow.com/questions/3725827/ant-string-functions say much echo allUpperCase THIS IS A NORMAL LINE THAT DOESN'T SAY MUCH BUILD SUCCESSFUL Update for WarrenFaith's comment to..
Configuring Spring Security 3.x to have multiple entry points http://stackoverflow.com/questions/4783063/configuring-spring-security-3-x-to-have-multiple-entry-points authentication falls back to employee authentication... DOESN'T WORK . This is risky because if I select customer authentication..
Convert HTML Character Back to Text Using Java Standard Library http://stackoverflow.com/questions/599634/convert-html-character-back-to-text-using-java-standard-library amp Sad System.out.println s try Change to Happy Sad . DOESN'T WORK s java.net.URLDecoder.decode s UTF 8 System.out.println..
Android Actionbar Tabs and Keyboard Focus http://stackoverflow.com/questions/8087715/android-actionbar-tabs-and-keyboard-focus getFragmentManager new MyFragment Frag2 OTHER PLACE I TRY DOESN'T WORK BETTER THAN IN THE VIEW @Override public boolean onKeyDown..
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