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java Programming Glossary: reWhy does this() and super() have to be the first statement in a constructor? http://stackoverflow.com/questions/1168345/why-does-this-and-super-have-to-be-the-first-statement-in-a-constructor have to be the first statement in a constructor Java requires that if you call this or super in a constructor it must.. have to be the first statement in a constructor Java requires that if you call this or super in a constructor it must be.. in a constructor . However you can get around this by re arranging the code a little bit public class MySubClass extends..
Is there any way to accept only numeric values in a JTextField? http://stackoverflow.com/questions/1313390/is-there-any-way-to-accept-only-numeric-values-in-a-jtextfield there any way to accept only numeric values in a JTextField Is there.. way to accept only numeric values in a JTextField Is there any way to accept only numeric values in a JTextField Is there.. way to accept only numeric values in a JTextField Is there any special method for this java swing jtextfield share improve..
'Must Override a Superclass Method' Errors after importing a project into Eclipse http://stackoverflow.com/questions/1678122/must-override-a-superclass-method-errors-after-importing-a-project-into-eclips after importing a project into Eclipse Anytime I have to re import my projects into Eclipse if I reinstalled Eclipse or.. Anytime I have to re import my projects into Eclipse if I reinstalled Eclipse or changed the location of the projects almost.. of the projects almost all of my overridden methods are not formatted correctly causing the error ' The method must..
How to load a jar file at runtime http://stackoverflow.com/questions/194698/how-to-load-a-jar-file-at-runtime to load new code expantions while running. How do I re load a jar file while my code is running or how do I load a.. up time is important I'd like to add the ability to re load existing classes while at it if it does not complicate.. at it if it does not complicate things too much . What are the things I should look out for think of it as two different..
Eclipse - no Java (JRE) / (JDK) … no virtual machine http://stackoverflow.com/questions/2030434/eclipse-no-java-jre-jdk-no-virtual-machine no virtual machine I am trying to get Eclipse Galileo to re run on my computer i have run it before with no problems but.. Eclipse Galileo to re run on my computer i have run it before with no problems but now i keep getting this error A java Runtime.. found after searching the following locations C eclipse jre javaw.exe javaw.exe in your current PATH I've just done a fresh..
Why JSF calls getters multiple times http://stackoverflow.com/questions/2090033/why-jsf-calls-getters-multiple-times it is trivial to notice that the getter is being called more than once per request twice or three times is what happened.. notice that the getter is being called more than once per request twice or three times is what happened in my case DEBUG.. is being called more than once per request twice or three times is what happened in my case DEBUG 2010 01 18 23 31 40..
What is a Null Pointer Exception? http://stackoverflow.com/questions/218384/what-is-a-null-pointer-exception is a Null Pointer Exception What are null pointer exceptions and what causes them in general java.. exceptions and what causes them in general java nullpointerexception share improve this question When you declare a reference.. causes them in general java nullpointerexception share improve this question When you declare a reference variable..
http://stackoverflow.com/questions/2658922/xss-prevention-in-java prevention in Java How can I prevent XSS attacks in Java Are there.. prevention in Java How can I prevent XSS attacks in Java Are there any good libraries for that.. prevention in Java How can I prevent XSS attacks in Java Are there any good libraries for that java security jsp servlets..
When to use LinkedList<> over ArrayList<>? http://stackoverflow.com/questions/322715/when-to-use-linkedlist-over-arraylist so that when I ask questions such as these I can rework my code. When should LinkedList be used over ArrayList and.. be used over ArrayList and vice versa java data structures collections arraylist linked list share improve this question.. data structures collections arraylist linked list share improve this question LinkedList and ArrayList are two different..
Singletons vs. Application Context in Android? http://stackoverflow.com/questions/3826905/singletons-vs-application-context-in-android good idea to use Singletons instead of single instances shared through global application state subclassing android.os.Application.. not a good idea but applied to Android. Am I correct What's different in DalvikVM otherwise EDIT I would like to.. good idea but applied to Android. Am I correct What's different in DalvikVM otherwise EDIT I would like to have opinions on..
http://stackoverflow.com/questions/394616/running-jar-file-in-windows I cannot do this. For this do I need to install any software Can any one provide me help on this java jar executable jar.. one provide me help on this java jar executable jar share improve this question Easiest route is probably upgrading or.. this question Easiest route is probably upgrading or re installing the Java Runtime Environment JRE . Or this Open the..
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 it gives me an error that looks like Exception in thread main java.lang.NullPointerException at com.example.myproject.Book.getTitle.. Bootstrap.java 14 People have referred to this as a stack trace . What is a stack trace What.. Bootstrap.java 14 People have referred to this as a stack trace . What is a stack trace What can it..
Android Eclipse - Could not find *.apk [closed] http://stackoverflow.com/questions/4778113/android-eclipse-could-not-find-apk find .apk closed I know this question has been asked before and I have seen a plethora of solutions out there yet none seem.. before and I have seen a plethora of solutions out there yet none seem to work for me. I was able to build my apk without.. started cropping up. I have tried cleaning my project removing it from the workspace and reimporting it removing Java..
How to calculate the number of rows (and columns in each row) a text takes in a JTextArea? http://stackoverflow.com/questions/5979795/how-to-calculate-the-number-of-rows-and-columns-in-each-row-a-text-takes-in-a of rows and columns in each row a text takes in a JTextArea After getting interested in the problem presented in the question.. in each row a text takes in a JTextArea After getting interested in the problem presented in the question I tried to approach.. in a JTextArea After getting interested in the problem presented in the question I tried to approach it few times and failed..
Java: checked vs unchecked exception explanation http://stackoverflow.com/questions/6115896/java-checked-vs-unchecked-exception-explanation checked vs unchecked exception explanation I have read multiple posts on StackOverFlow about checked vs unchecked.. vs unchecked exceptions. I'm honestly still not quite sure how to use them properly. Joshua Bloch in Effective Java said.. in Effective Java said that Use checked expections for recoverable conditions and runtime exceptions for programming errors..
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 get ArrayIndexOutOfBoundsException from Future and SwingWorker if thread starts Executor I play with multitreading.. from Future and SwingWorker if thread starts Executor I play with multitreading for SwingWorker.. SwingWorker if thread starts Executor I play with multitreading for SwingWorker by using Executor and I'm there by mistake..
Access restriction on class due to restriction on required library rt.jar? http://stackoverflow.com/questions/860187/access-restriction-on-class-due-to-restriction-on-required-library-rt-jar restriction on class due to restriction on required library rt.jar.. restriction on class due to restriction on required library rt.jar I'm attempting to compile.. restriction on class due to restriction on required library rt.jar I'm attempting to compile Java 1.4 code..
http://stackoverflow.com/questions/9404625/java-pass-by-reference pass by reference What is the difference between this 2 code Code A Foo.. pass by reference What is the difference between this 2 code Code A Foo myFoo.. pass by reference What is the difference between this 2 code Code A Foo myFoo myFoo createfoo where..
Difference between java.util.Random and java.security.SecureRandom http://stackoverflow.com/questions/11051205/difference-between-java-util-random-and-java-security-securerandom exclusively to generate the tokens Regards EDIT Re @Tom's question Currently the code seed's the Random.. exclusively to generate the tokens Regards EDIT Re @Tom's question Currently the code seed's the Random once at.. the output of your random numbers right now. Conclusion Replace your current code. Use SecureRandom exclusively. Then at..
Garbage collection vs. non garbage collection programming languages http://stackoverflow.com/questions/1424660/garbage-collection-vs-non-garbage-collection-programming-languages because you're not tracking allocations use frees well Re allocating new instances of things that already exist a side..
Re-paint problem on translucent frame/panel/component http://stackoverflow.com/questions/2163544/re-paint-problem-on-translucent-frame-panel-component paint problem on translucent frame panel component I'm trying.. Color.white frame.add label frame.pack frame.setLocationRelativeTo null frame.setVisible true Timer timer new Timer timer.schedule.. import java.awt.Graphics2D import java.awt.RenderingHints import java.awt.event.ActionEvent import java.awt.event.ActionListener..
http://stackoverflow.com/questions/233579/closures-in-java-7 puredanger.com tech 2009 11 18 closures after all D edit2 Re thinking JDK7 http blogs.oracle.com mr entry rethinking_jdk7..
Atomikos vs JOTM vs Bitronix vs? [closed] http://stackoverflow.com/questions/2978207/atomikos-vs-jotm-vs-bitronix-vs them with pros cons O pen S ource JTA Transaction Managers Re xmlblaster devel JTA compliance Just in case here is my very..
How to get facet ranges in solr results? http://stackoverflow.com/questions/33956/how-to-get-facet-ranges-in-solr-results Here are some discussions on the topic http www.nabble.com Re faceted browsing p3753053.html http www.nabble.com Re Sorting.. Re faceted browsing p3753053.html http www.nabble.com Re Sorting p6803791.html http www.nabble.com Dynamically calculated..
Hibernate : dynamic-update dynamic-insert - Performance Effects http://stackoverflow.com/questions/3404630/hibernate-dynamic-update-dynamic-insert-performance-effects by default . But as always you should measure it. See also Re Request for dynamic update SQL for some feedback from the Hibernate.. default . But as always you should measure it. See also Re Request for dynamic update SQL for some feedback from the Hibernate..
http://stackoverflow.com/questions/3631349/how-do-i-cure-the-cause-of-hibernate-exception-illegalargumentexception-occurre 254 at com.db.spgit.abstrack.manager.QuoteManager.addQuoteReturnVwRfqUK QuoteManager.java 429 at com.db.spgit.abstrack.manager.QuoteManager.. 700 at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed ReflectiveMethodInvocation.java.. ReflectiveMethodInvocation.java 149 at org.springframework.transaction.interceptor.TransactionInterceptor.invoke..
Recomend a (standalone) java debugger [closed] http://stackoverflow.com/questions/370072/recomend-a-standalone-java-debugger a standalone java debugger closed As the title suggests.. on the machines but that's a different problem Update 2 Re why not install Eclipse on where the application will be run..
Using Cookies across Activities when using HttpClient http://stackoverflow.com/questions/5802595/using-cookies-across-activities-when-using-httpclient DefaultHttpClient httpClient new DefaultHttpClient HttpResponse response httpClient.execute postMethod List Cookie cookies.. httpClient new DefaultHttpClient params HttpResponse response httpClient.execute getMethod if response.getStatusLine.. new char 0x10000 StringBuilder out new StringBuilder Reader in new InputStreamReader response.getEntity .getContent..
why business logic should be moved out of JSP? http://stackoverflow.com/questions/5818101/why-business-logic-should-be-moved-out-of-jsp view and clean and separated architecture Simplicity Re usability Suppose tomorrow you need same app running on a desktop..
Converting a Java Keystore into PEM Format http://stackoverflow.com/questions/652916/converting-a-java-keystore-into-pem-format L Melbourne ST Victoria C AU' Enter keystore password Re enter new password Enter key password for RETURN if same as.. deststoretype pkcs12 Enter destination keystore password Re enter new password Enter source keystore password Entry for..
Which is better? Performing calculations in sql or in your application [closed] http://stackoverflow.com/questions/7510092/which-is-better-performing-calculations-in-sql-or-in-your-application tuned and appropriately indexed will help either scenario. Re your note and then loop through the records Looping through..
http://stackoverflow.com/questions/8169964/is-mvc-in-swing-thread-safe of an MVC architecture in Swing inc. Container Re Layout note for my SSCCE I take one of great examples by HFOE.. JFrame.EXIT_ON_CLOSE frame.pack frame.setLocationRelativeTo null frame.setVisible true public static void main String..
How to Re-run failed JUnit tests immediately? http://stackoverflow.com/questions/8295100/how-to-re-run-failed-junit-tests-immediately to Re run failed JUnit tests immediately Is there a way to have an.. test so you would implement the retry loop public class RetryTest public class Retry implements TestRule private int retryCount.. the retry loop public class RetryTest public class Retry implements TestRule private int retryCount public Retry int..
Fastest way to iterate over all the chars in a String http://stackoverflow.com/questions/8894258/fastest-way-to-iterate-over-all-the-chars-in-a-string TRIES_PER_STRING_SIZE random for int size sizes reportResults size test size TRIES_PER_STRING_SIZE random reverse order.. TRIES_PER_STRING_SIZE random for int size sizes reportResults size test size TRIES_PER_STRING_SIZE random METHODS.. .anyMatch predicate doThrow return data.length Re fill a resuable char with the contents of the String's char..
Re-compile a Java Class from Jar http://stackoverflow.com/questions/946071/re-compile-a-java-class-from-jar compile a Java Class from Jar I have an executable jar that..
What is your favorite hot-key in Eclipse? [closed] http://stackoverflow.com/questions/98220/what-is-your-favorite-hot-key-in-eclipse key in Eclipse closed I've been using Visual Studio with Re Sharper for the past few years and have recently taken a gig..
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