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java Programming Glossary: givenStringBuilder vs String concatenation in toString() in Java http://stackoverflow.com/questions/1532461/stringbuilder-vs-string-concatenation-in-tostring-in-java b .append c .append c .append .toString More importantly given we have only 3 properties it might not make a difference but.. 2 no performance difference whatsoever. More importantly given we have only 3 properties it might not make a difference but..
How do I invoke a Java method when given the method name as a string? http://stackoverflow.com/questions/160970/how-do-i-invoke-a-java-method-when-given-the-method-name-as-a-string do I invoke a Java method when given the method name as a string If I have two variables Object..
Floating point arithmetic not producing exact results in Java http://stackoverflow.com/questions/1661273/floating-point-arithmetic-not-producing-exact-results-in-java i This is to simulate the range of values given as output by the Betfair spinner widget . Floating point arithmetic..
http://stackoverflow.com/questions/1688099/converting-json-to-java The intention is to extract a list of IDs where any given object possessing a group property that contains other JSON..
What is a raw type and why shouldn't we use it? http://stackoverflow.com/questions/2770321/what-is-a-raw-type-and-why-shouldnt-we-use-it type MyType Object mt1 no warning type parameter given MyType mt2 no warning type parameter given wildcard OK Here.. type parameter given MyType mt2 no warning type parameter given wildcard OK Here MyType E is a parameterized type JLS 4.5 ...
Evaluating a math expression given in string form http://stackoverflow.com/questions/3422673/evaluating-a-math-expression-given-in-string-form a math expression given in string form I am trying to write a Java routine to evaluate..
What is a stack trace, and how can I use it to debug my application errors? http://stackoverflow.com/questions/3988788/what-is-a-stack-trace-and-how-can-i-use-it-to-debug-my-application-errors an Exception was thrown. Simple Example With the example given in the question we can determine exactly where the exception..
Can you find all classes in a package using reflection? http://stackoverflow.com/questions/520328/can-you-find-all-classes-in-a-package-using-reflection Is it possible to find all classes or interfaces in a given package Quickly looking at e.g. Package it would seem like no...
read/write to Windows Registry using Java http://stackoverflow.com/questions/62289/read-write-to-windows-registry-using-java hkey hkey Read value s and value name s form given key @param hkey HKEY_CURRENT_USER HKEY_LOCAL_MACHINE @param.. hkey hkey Read the value name s from a given key @param hkey HKEY_CURRENT_USER HKEY_LOCAL_MACHINE @param.. rc ret 1 key key Write a value in a given key value name @param hkey @param key @param valueName @param..
Java GUI listeners without AWT http://stackoverflow.com/questions/6255106/java-gui-listeners-without-awt this question You're mis interpreting the information given to you. You should avoid using Swing components with AWT components..
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 E.g. a component which shows a rating in stars based on a given integer value or a component which represents a single date..
http://stackoverflow.com/questions/9864267/load-icon-image-exception Project How to Use Icons A Little extra clarification as given in this answer's first code example. share improve this answer..
Java 256-bit AES Password-Based Encryption http://stackoverflow.com/questions/992019/java-256-bit-aes-password-based-encryption a good key from this information in Java 6 Derive the key given password and salt. SecretKeyFactory factory SecretKeyFactory.getInstance.. the key and the initialization vector. Decrypt the message given derived key and initialization vector. Cipher cipher Cipher.getInstance..
Do you ever use the volatile keyword in Java? http://stackoverflow.com/questions/106591/do-you-ever-use-the-volatile-keyword-in-java explaination Java theory and practice Managing volatility Given the detail in which that article explains the keyword in question..
How do I remove objects from an array in Java? http://stackoverflow.com/questions/112503/how-do-i-remove-objects-from-an-array-in-java do I remove objects from an array in Java Given an array of n Objects let's say it is an array of strings and..
In Java, how can I test if an Array contains a certain value? http://stackoverflow.com/questions/1128723/in-java-how-can-i-test-if-an-array-contains-a-certain-value public static final String VALUES new String AB BC CD AE Given String s is there a good way of testing whether VALUES contains..
JSP tricks to make templating easier? http://stackoverflow.com/questions/1296235/jsp-tricks-to-make-templating-easier inheritance Can someone explain how to achieve this Given that I don't have much time I think dynamic routing is a little..
Best way to compare 2 XML documents in Java http://stackoverflow.com/questions/141993/best-way-to-compare-2-xml-documents-in-java a library I could leverage. So boiled down the question is Given two Java Strings which both contain valid XML how would you..
StringBuilder vs String concatenation in toString() in Java http://stackoverflow.com/questions/1532461/stringbuilder-vs-string-concatenation-in-tostring-in-java vs String concatenation in toString in Java Given the 2 toString implementations below which is prefered public..
http://stackoverflow.com/questions/1637752/netty-vs-apache-mina not so simple to add a connected UDP wrapper or something. Given time constraints and on Trustin's advice that the best way to..
http://stackoverflow.com/questions/176745/circular-references-in-java References in Java Given an aggregation of class instances which refer to each other..
How to resolve a Java Rounding Double issue http://stackoverflow.com/questions/179427/how-to-resolve-a-java-rounding-double-issue need for BigDecimal by John Zukowski for more information. Given your example the last line would be as following using BigDecimal...
Why can outer Java classes access inner class private members? http://stackoverflow.com/questions/1801718/why-can-outer-java-classes-access-inner-class-private-members is very closely tied to way that the outer class works. Given these requirements inner classes have full access to their outer..
How to construct a relative path in Java from two absolute paths (or URLs)? http://stackoverflow.com/questions/204784/how-to-construct-a-relative-path-in-java-from-two-absolute-paths-or-urls a relative path in Java from two absolute paths or URLs Given two absolue paths e.g. var data stuff xyz.dat var data How can..
Official reasons for “Software caused connection abort: socket write error” http://stackoverflow.com/questions/2126607/official-reasons-for-software-caused-connection-abort-socket-write-error Software caused connection abort socket write error&rdquo Given this stack trace snippet Caused by java.net.SocketException..
How would you implement an LRU cache in Java 6? http://stackoverflow.com/questions/221525/how-would-you-implement-an-lru-cache-in-java-6 to implement my own using just the SDK learning by doing . Given that the cache will be used in a multithreaded environment which..
What is a raw type and why shouldn't we use it? http://stackoverflow.com/questions/2770321/what-is-a-raw-type-and-why-shouldnt-we-use-it raw types. Effective Java 2nd Edition also has this to add Given that you shouldn't use raw types why did the language designers..
How to deal with “java.lang.OutOfMemoryError: Java heap space” error (64MB heap size) http://stackoverflow.com/questions/37335/how-to-deal-with-java-lang-outofmemoryerror-java-heap-space-error-64mb-heap on Windows machine the JVM defaults max heap size as 64MB. Given this situation how should I deal with this constraint I could..
Are static fields open for garbage collection? http://stackoverflow.com/questions/453023/are-static-fields-open-for-garbage-collection static fields open for garbage collection Given an hypothetical utility class that is used only in program setup..
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 0 An 64 bit double can represent integer 2 53 exactly Given this fact I choose to use a double type as a single type for..
How can I put a control in the JTableHeader of a JTable? http://stackoverflow.com/questions/7137786/how-can-i-put-a-control-in-the-jtableheader-of-a-jtable can I put a control in the JTableHeader of a JTable Given a JTable with a column of type Boolean.class the default renderer..
Java 1.6 - determine symbolic links http://stackoverflow.com/questions/813710/java-1-6-determine-symbolic-links to a directory assuming the walker walks on UNIX systems . Given I already know the instance is a directory would the following..
Efficiency of Java “Double Brace Initialization”? http://stackoverflow.com/questions/924285/efficiency-of-java-double-brace-initialization for list construction and interoperate well with Java. Given that DBI clutters up the classpath slows down class loading..
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