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java Programming Glossary: sureHow to sort a Map<Key, Value> on the values in Java? http://stackoverflow.com/questions/109383/how-to-sort-a-mapkey-value-on-the-values-in-java Added note if you intend to use the code provided be sure to read the comments as well to be aware of the implications...
How to get UTF-8 working in java webapps? http://stackoverflow.com/questions/138948/how-to-get-utf-8-working-in-java-webapps request response public void destroy This filter makes sure that if the browser hasn't set the encoding used in the request..
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 out for leading hex zeros. But I think it is ugly and I am sure I am missing something simple... java byte hex dump share..
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 of memory killer is tuned for a particular system to make sure that background processes are killed before the cached RAM is..
Overriding equals and hashCode in Java http://stackoverflow.com/questions/27581/overriding-equals-and-hashcode-in-java LinkedHashSet HashMap Hashtable or WeakHashMap make sure that the hashCode of the key objects that you put into the collection.. the object is in the collection. The bulletproof way to ensure this is to make your keys immutable which has also other benefits..
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 I know how to do the ProgressDialog but I'm not sure how to display the current progress and how to download the.. return false Method's name explains it all. Once you are sure DownloadManager is available you can do something like this.. whether user has an internet connection available Make sure you have the right permissions INTERNET and WRITE_EXTERNAL_STORAGE..
JSTL in JSF2 Facelets… makes sense? http://stackoverflow.com/questions/3342984/jstl-in-jsf2-facelets-makes-sense work fine c if test lpc.verbose ... c if However I'm not sure if this is a best practice Is there another way to achieve my..
Why not use Double or Float to represent currency? http://stackoverflow.com/questions/3730019/why-not-use-double-or-float-to-represent-currency do this and this time I pose the question to you why I'm sure there is a very good reason I simply do not know what it is...
Swing: link toggle buttons together with a button group, along with corresponding menu items http://stackoverflow.com/questions/4038605/swing-link-toggle-buttons-together-with-a-button-group-along-with-correspondin group any AbstractButton with a ButtonGroup but I am not sure if this is the right way to go because though it handles one.. though it handles one group of buttons just fine I am not sure it can handle two parallel groups. Doing it without ButtonGroup..
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 number of rows based on types of data but I want to make sure that I don't read in too many rows of data and cause OutOfMemory..
Why is super.super.method(); not allowed in Java? http://stackoverflow.com/questions/586363/why-is-super-super-method-not-allowed-in-java public String toString return super.super.toString I'm not sure if it is useful in many cases but I wonder why it isn't and..
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 vector swingworker share improve this question I'm not sure it adds much but I got the expected Caused by using the variation.. answer shown below. I ran it from the command line to be sure the IDE wasn't helping . java cp build classes TableWithExecutor..
Efficiency of Java “Double Brace Initialization”? http://stackoverflow.com/questions/924285/efficiency-of-java-double-brace-initialization noted in the comments it's not possible to be absolutely sure of the impact. Just for reference double brace initialization..
Java 256-bit AES Password-Based Encryption http://stackoverflow.com/questions/992019/java-256-bit-aes-password-based-encryption easily have multiple Java runtimes double check to make sure that the correct location is being used. share improve this..
Using Mockito to test abstract classes http://stackoverflow.com/questions/1087339/using-mockito-to-test-abstract-classes test abstract classes I'd like to test an abstract class. Sure I can manually write a mock that inherits from the class. Can..
What are the cases in which it is better to use unconditional AND (& instead of &&) http://stackoverflow.com/questions/11411907/what-are-the-cases-in-which-it-is-better-to-use-unconditional-and-instead-of to avoid a test that's going to be so cheap anyway Sure since it's a boolean the end result is going to be used in a..
Why can't I retrieve an item from a HashSet without enumeration? http://stackoverflow.com/questions/1494812/why-cant-i-retrieve-an-item-from-a-hashset-without-enumeration the item I pass into the Remove x or Contains x function. Sure I guess I could achieve the same effect through a HashMap but..
Prevent suffix from being added to resources when page loads http://stackoverflow.com/questions/14963756/prevent-suffix-from-being-added-to-resources-when-page-loads Since we are looking at the extention alone . Reasoning Sure you might be asking me why I need this. Well we are moving our..
How do I detect unicode characters in a Java string? http://stackoverflow.com/questions/1673544/how-do-i-detect-unicode-characters-in-a-java-string character you'll really need to create a mapping. Sure it's a tedious work but it's done in less time than you needed..
In Java, why must equals() and hashCode() be consistent? http://stackoverflow.com/questions/1678205/in-java-why-must-equals-and-hashcode-be-consistent of keys to Hashmap java share improve this question Sure public class Test private final int m n public Test int m int..
Java Instance Variables vs Local Variables http://stackoverflow.com/questions/1794141/java-instance-variables-vs-local-variables between those two lines and get wildly different results. Sure when we're dealing with small number of lines it's easy to spot..
Class with single method — best approach? http://stackoverflow.com/questions/205689/class-with-single-method-best-approach contents as needed. As it's a static method we can't. Sure if we just need to add functionality either before or after..
http://stackoverflow.com/questions/2068804/why-is-string-final-in-java a replica of String class in Java reminded me of my query. Sure String provides all the functionality I ever needed and never..
How to limit setAccessible to only “legitimate” uses? http://stackoverflow.com/questions/2481862/how-to-limit-setaccessible-to-only-legitimate-uses control the application server it's also not a concern. Sure the fellow coders at your company may create code that breaks..
Can the JVM recover from an OutOfMemoryError without a restart http://stackoverflow.com/questions/3058198/can-the-jvm-recover-from-an-outofmemoryerror-without-a-restart forever waiting for a notification that won't ever occur. Sure Thread #2 is guaranteed to release the mutex on the lock object..
Shiro vs. SpringSecurity [closed] http://stackoverflow.com/questions/4991084/shiro-vs-springsecurity agree that Spring Security feels too complicated to me . Sure they have done things to reduce complexity like creating custom..
Polymorphism and Interfaces in Java (can polymorphism be used to implement interfaces…why?) http://stackoverflow.com/questions/5423125/polymorphism-and-interfaces-in-java-can-polymorphism-be-used-to-implement-inter interface polymorphism share improve this question Sure Below is concrete example of the Observer pattern using classes..
http://stackoverflow.com/questions/5767627/java-regex-helper to start over from first principles the way Groovy did. Sure it might work for very limited applications whose small customer..
http://stackoverflow.com/questions/5805843/dynamic-variable-names-java AFAIK that's the closest you can get when using Java. Sure you can mess around with reflection but IMO the map approach..
How to nicely format floating numbers to String without unnecessary decimal 0? http://stackoverflow.com/questions/703396/how-to-nicely-format-floating-numbers-to-string-without-unnecessary-decimal-0 What I want is 232 0.18 1237875192 4.58 0 1.2345 Sure I can write a function to trim those zeros but that's lot of..
Basic Java Swing, how to exit and dispose of your application/JFrame http://stackoverflow.com/questions/7080638/basic-java-swing-how-to-exit-and-dispose-of-your-application-jframe e int confirm JOptionPane.showOptionDialog frame Are You Sure to Close this Application Exit Confirmation JOptionPane.YES_NO_OPTION.. e int confirm JOptionPane.showOptionDialog frame Are You Sure to Close this Application Exit Confirmation JOptionPane.YES_NO_OPTION..
What Java XML library do you recommend (to replace dom4j)? http://stackoverflow.com/questions/831865/what-java-xml-library-do-you-recommend-to-replace-dom4j and links. java xml dom4j share improve this question Sure XOM XOM is designed to be easy to learn and easy to use. It..
http://stackoverflow.com/questions/84340/why-learn-perl-python-ruby-if-the-company-is-using-c-c-sharp-or-java-as-the languages parse text they are great for code generation. Sure your final project must be in C# Java Transact SQL but instead..
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