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java Programming Glossary: ratherStandard concise way to copy a file in Java? http://stackoverflow.com/questions/106770/standard-concise-way-to-copy-a-file-in-java NIO routines defer copying directly to the OS filesystem rather than handle it by reading and writing bytes through the Java..
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 What would be the equivalent of this C construct I would rather avoid reimplementing my own. It seems that 1.6 is providing.. x y a class Range begin end and a class Entry key value rather than a generic Pair first second that doesn't tell me anything..
PreparedStatement IN clause alternatives? http://stackoverflow.com/questions/178479/preparedstatement-in-clause-alternatives security issues One placeholder represents one value rather than a list of values. Consider the following SQL statement..
What is a Null Pointer Exception? http://stackoverflow.com/questions/218384/what-is-a-null-pointer-exception to num in which case you are not creating the object num rather assuming that is was created before the doSomething method was..
Setting multiple jars in java classpath http://stackoverflow.com/questions/219585/setting-multiple-jars-in-java-classpath early prior to the invocation of a program's main method rather than late during the class loading process itself. Each element..
How to upload files to server using JSP/Servlet? http://stackoverflow.com/questions/2422468/how-to-upload-files-to-server-using-jsp-servlet roseindia.net. See also uploading of pdf file . You should rather use a real library which is used and implicitly tested by millions..
How to call SOAP web service in Android http://stackoverflow.com/questions/297586/how-to-call-soap-web-service-in-android library to Android. My suspicion for this is that they'd rather support the current trends in Web Services toward REST based..
How do I set environment variables from Java? http://stackoverflow.com/questions/318239/how-do-i-set-environment-variables-from-java . I have several subprocesses to start though so I'd rather modify the current process's environment and let the subprocesses..
Design Patterns web based applications http://stackoverflow.com/questions/3541077/design-patterns-web-based-applications side note I warmly recommend to pick an existing framework rather than reinventing your own. Learning an existing and well developed..
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 it more explicit there is an implication there but it's rather vague and open to interpretation . Pitfall of Assuming what..
Unicode equivalents for \w and \b in Java regular expressions? http://stackoverflow.com/questions/4304928/unicode-equivalents-for-w-and-b-in-java-regular-expressions cluster not an extended grapheme cluster as the latter is rather more complicated. Perl itself now uses the fancier version but..
Migrating from JSF 1.2 to JSF 2.0 http://stackoverflow.com/questions/4441713/migrating-from-jsf-1-2-to-jsf-2-0 from JSF 1.2 to JSF 2.0 I am working with a rather large app written in JSF 1.2 . JSF 1.2 is around 6 years old..
How can an app use files inside the JAR for read and write? http://stackoverflow.com/questions/5052311/how-can-an-app-use-files-inside-the-jar-for-read-and-write Note that it is generally better to describe the goal rather than the strategy. 'Store changed file in Jar' is a strategy..
Are getters and setters poor design? [closed] http://stackoverflow.com/questions/565095/are-getters-and-setters-poor-design that things no longer have an alive boolean but rather a hit points value you can change that around without breaking..
How to choose the right bean scope? http://stackoverflow.com/questions/7031885/how-to-choose-the-right-bean-scope occupies server memory. Note that the scope should rather not be chosen based on performance implications unless you really..
How are SSL certificate server names resolved/Can I add alternative names using keytool? http://stackoverflow.com/questions/8443081/how-are-ssl-certificate-server-names-resolved-can-i-add-alternative-names-using ... In some cases the URI is specified as an IP address rather than a hostname. In this case the iPAddress subjectAltName must.. also a nice trick to use an environment variable for this rather in than fixing it in a configuration file here http www.crsr.net..
How does the Java for each loop work? http://stackoverflow.com/questions/85190/how-does-the-java-for-each-loop-work . Also if the right hand side of the for idiom is an array rather than an Iterable object the internal code uses an int index..
Is it safe to get values from a java.util.HashMap from multiple threads (no modification)? http://stackoverflow.com/questions/104184/is-it-safe-to-get-values-from-a-java-util-hashmap-from-multiple-threads-no-modi Which one should I use nor is it a performance question. Rather the question is Would it be safe java multithreading concurrency..
best way to pick a random subset from a collection? http://stackoverflow.com/questions/136474/best-way-to-pick-a-random-subset-from-a-collection process but I think the code shown works correctly. Rather than randomly shuffle all the items you can do the random shuffle..
Interview : Can we instantiate abstract class? http://stackoverflow.com/questions/13670991/interview-can-we-instantiate-abstract-class are not creating the instance of your abstract class here. Rather you are creating an instance of an anonymous subclass of your..
using sleep() for a single thread http://stackoverflow.com/questions/14074329/using-sleep-for-a-single-thread behavior caused by invoking Thread.sleep .. on GUI's EDT. Rather use Swing Timer for example int delay 1000 wait for second Timer..
Why are wait() and notify() declared in Java's Object class? http://stackoverflow.com/questions/1769489/why-are-wait-and-notify-declared-in-javas-object-class wait and being woken up by the next call to notify . Rather you always call wait on a specific object and will only be woken..
What is the relative performance difference of if/else versus switch statement in Java? http://stackoverflow.com/questions/2086529/what-is-the-relative-performance-difference-of-if-else-versus-switch-statement-i optimization and premature optimization which are evil. Rather worry about readabililty and maintainability of the code in..
Netbeans GUI editor generating its own incomprehensible code http://stackoverflow.com/questions/2561480/netbeans-gui-editor-generating-its-own-incomprehensible-code code to create a GUI interface for a database table. Rather than Java Application Creates a new Java SE application in a..
How do I get my current working directory in Java? http://stackoverflow.com/questions/3153337/how-do-i-get-my-current-working-directory-in-java hardcoding knowing their relative path in your program. Rather consider adding its path to the classpath so that you can use..
How to avoid Java Code in JSP-Files? http://stackoverflow.com/questions/3177733/how-to-avoid-java-code-in-jsp-files scriptlets should not be used for writing business logic. Rather JSP scriptlets are used if necessary to transform data also..
Understanding Java's Reference classes: SoftReference, WeakReference, and PhantomReference http://stackoverflow.com/questions/3329691/understanding-javas-reference-classes-softreference-weakreference-and-phanto ref reference or if you prefer variable that can be null. Rather it's the value obtained by calling Reference#get that may be..
How can we match a^n b^n with Java regex? http://stackoverflow.com/questions/3644266/how-can-we-match-an-bn-with-java-regex for assertion and one nested reference for counting . Rather than immediately giving out the pattern this answer will guide..
http://stackoverflow.com/questions/412380/combine-paths-in-java into a path. c# java path share improve this question Rather than keeping everything string based if you use java.io.File..
Best Location for Uploading file http://stackoverflow.com/questions/4548190/best-location-for-uploading-file Everything will get lost whenever you redeploy the WAR. Rather store it in a known and fixed path outside your webapp and add..
How do I send html email via Java? http://stackoverflow.com/questions/5068827/how-do-i-send-html-email-via-java default mime type of text plain while you need text html . Rather use MimeMessage#setContent instead. message.setContent someHtmlMessage..
Why is it “Easier to ask forgiveness than permission” in python, but not in Java? [closed] http://stackoverflow.com/questions/6092992/why-is-it-easier-to-ask-forgiveness-than-permission-in-python-but-not-in-java use of exceptions whenever an error condition might arise. Rather than testing for access to a file or resource before actually..
The case against checked exceptions http://stackoverflow.com/questions/613954/the-case-against-checked-exceptions that the proper level of abstraction wasn't chosen. Rather than declare a method throws an IOException the IOException..
http://stackoverflow.com/questions/6614380/jdk-on-osx-10-7-lion up eclipse preferences and go to Java Installed JREs page Rather than use the JVM Contents MacOS X Default we will need to use..
Why do constructors in java not have a return type? [duplicate] http://stackoverflow.com/questions/6801500/why-do-constructors-in-java-not-have-a-return-type the init method is not actually part of the Java language. Rather it is something the Java virtual machine expects to see in a..
Android project using httpclient --> http.client (apache), post/get method http://stackoverflow.com/questions/874227/android-project-using-httpclient-http-client-apache-post-get-method you do not want to create the client over and over again. Rather as the tutorials for HttpClient note create the client once..
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