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java Programming Glossary: onHow to upload files to server using JSP/Servlet? http://stackoverflow.com/questions/2422468/how-to-upload-files-to-server-using-jsp-servlet files to server using JSP Servlet I tried this form action upload method post input type text name description input type.. action upload method post input type text name description input type file name file input type submit form However I only.. input type file name file input type submit form However I only get the file name not the file content. When I add enctype..
How to use java.net.URLConnection to fire and handle HTTP requests? http://stackoverflow.com/questions/2793150/how-to-use-java-net-urlconnection-to-fire-and-handle-http-requests to use java.net.URLConnection to fire and handle HTTP requests URLConnection is pretty.. to use java.net.URLConnection to fire and handle HTTP requests URLConnection is pretty often.. to fire and handle HTTP requests URLConnection is pretty often asked here and the Oracle tutorial is..
How to avoid Java Code in JSP-Files? http://stackoverflow.com/questions/3177733/how-to-avoid-java-code-in-jsp-files name counter is an oldschool way of coding and in JSP version 2 there exists a method to avoid Java code in JSP files. Can.. exists a method to avoid Java code in JSP files. Can someone please tell me the alternative JSP 2 lines and how this technique.. java jsp java ee scriptlet share improve this question The use of scriptlets those things in JSP is indeed highly..
Should I avoid the use of set(Preferred|Maximum|Minimum)Size methods in Java Swing? http://stackoverflow.com/questions/7229226/should-i-avoid-the-use-of-setpreferredmaximumminimumsize-methods-in-java-swi methods setPreferredSize setMinimumSize setMaximumSize on Swing components. I don't see any alternative to their use when.. setMinimumSize setMaximumSize on Swing components. I don't see any alternative to their use when I want to.. setMinimumSize setMaximumSize on Swing components. I don't see any alternative to their use when I want to define proportions..
The Use of Multiple JFrames, Good/Bad Practice? http://stackoverflow.com/questions/9554636/the-use-of-multiple-jframes-good-bad-practice JFrames Good Bad Practice I'm developing an application which displays images and plays sounds from a database. I'm.. to add Images to the Database from the GUI. I'm just wondering whether it is good practice to use multiple JFrames java.. JFrames java swing gui jframe share improve this question I'm just wondering whether it is good practice to use multiple..
What is the difference between JSF, Servlet and JSP? http://stackoverflow.com/questions/2095397/what-is-the-difference-between-jsf-servlet-and-jsp directory. In for example Tomcat it's the work directory. On a JSP request the servletcontainer will execute the compiled..
How do I “decompile” Java class files? http://stackoverflow.com/questions/272535/how-do-i-decompile-java-class-files I actually get Java code or is it just JVM assembly code On Java performance questions on this site I often see responses..
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 add E you can't add just any arbitrary object to a List . On the other hand since the raw type List does not have type safety..
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 url to the file you want to download mProgressDialog.setOnCancelListener new DialogInterface.OnCancelListener @Override.. mProgressDialog.setOnCancelListener new DialogInterface.OnCancelListener @Override public void onCancel DialogInterface.. a background thread. You shouldn't do any UI tasks there. On the other hand the onProgressUpdate and onPreExecute run on..
How do servlets work? Instantiation, session variables and multithreading http://stackoverflow.com/questions/3106452/how-do-servlets-work-instantiation-session-variables-and-multithreading the server able to differentiate between different users One more similar question if there are n users accessing a particular.. anymore. The servletcontainer will create a new one. On the other hand the session cookie on the client side has a default..
When to use LinkedList<> over ArrayList<>? http://stackoverflow.com/questions/322715/when-to-use-linkedlist-over-arraylist the remainder of the array needs to be moved i.e. copied . On the other side seeking in a LinkedList means following the links..
Change private static final field using Java reflection http://stackoverflow.com/questions/3301635/change-private-static-final-field-using-java-reflection and thus the new value may not be observable Appendix On the bitwise manipulation Essentially field.getModifiers ~Modifier.FINAL..
What's wrong with overridable method calls in constructors? http://stackoverflow.com/questions/3404301/whats-wrong-with-overridable-method-calls-in-constructors constructor override share improve this question On invoking overridable method from constructors Simply put this.. read of field method called from constructor of superclass On object construction with many parameters Constructors with many..
If profiler is not the answer, what other choices do we have? http://stackoverflow.com/questions/4387895/if-profiler-is-not-the-answer-what-other-choices-do-we-have size order but it is essential to pinpoint them. On the subject of statistical accuracy of measurement if a call..
Migrating from JSF 1.2 to JSF 2.0 http://stackoverflow.com/questions/4441713/migrating-from-jsf-1-2-to-jsf-2-0 changing the view technology here. Master page changes On every master page you need to change the following basic JSP..
How to parse XML using the SAX parser http://stackoverflow.com/questions/4827344/how-to-parse-xml-using-the-sax-parser docs language SomeLanguage language item title TitleOne title description CDATA Some text. description link http linktoarticle.com.. Same thing happens for the other elements of channel ex. On every item tag occurrence we create a new Item object. chanItem.setStartElementListener.. public void start Attributes attributes item new Item On every item tag occurrence we add the current Item object to..
How can I update a JFreeChart's appearance after it's been made visible? http://stackoverflow.com/questions/5522575/how-can-i-update-a-jfreecharts-appearance-after-its-been-made-visible ChartPanelDemo private static final String title Return On Investment private ChartPanel chartPanel createChart public..
Remove Top-Level Container on Runtime http://stackoverflow.com/questions/6309407/remove-top-level-container-on-runtime import javax.swing. public class RemoveDialogOnRuntime extends JFrame private static final long serialVersionUID.. int left 20 private int maxLoop 0 public RemoveDialogOnRuntime setDefaultCloseOperation JFrame.EXIT_ON_CLOSE setPreferredSize.. new Dimension 300 300 setTitle Remove Dialog On Runtime setLocation 150 150 pack setVisible true Point loc this.getLocation..
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 de selecting must both be possible from mixed content. On second thought a checkbox probably isn't the best choice either..
Efficiency of Java “Double Brace Initialization”? http://stackoverflow.com/questions/924285/efficiency-of-java-double-brace-initialization code Summary Very very nice answers thanks everyone. On question 3 people felt the syntax should be clear though I'd.. pass on to developers who may not be familiar with it . On question 1 the generated code should run quickly. The extra.. so the timer does not have a very high resolution. On my Windows system the resolution is around 15 16 milliseconds...
AES gets different results in iOS and Java http://stackoverflow.com/questions/17535918/aes-gets-different-results-in-ios-and-java clearText text.getBytes UTF8 IMPORTANT TO GET SAME RESULTS ON iOS and ANDROID final byte iv new byte 16 Arrays.fill iv byte.. key getKey password IMPORTANT TO GET SAME RESULTS ON iOS and ANDROID final byte iv new byte 16 Arrays.fill iv byte..
Crowdsourcing a Complete list of Common Java System Properties and Known Values http://stackoverflow.com/questions/1803075/crowdsourcing-a-complete-list-of-common-java-system-properties-and-known-values java.class.path . read only JAVA_CLASS_VERSION java.class.version 49.0 read only JAVA_COMPILER java.compiler.. Environment Standard Edition read only JAVA_RUNTIME_VERSION java.runtime.version pap32devifx 20090506 SR9 SSU PK76176 IZ44410.. SR9 SSU PK76176 IZ44410 IZ44495 read only JAVA_SPECIFICATION_NAME java.specification.name Java Platform API Specification..
Java: Swing Libraries & Thread Safety http://stackoverflow.com/questions/182316/java-swing-libraries-thread-safety Use Threads Executors and SwingWorker to run tasks NOT ON THE EDT event dispatch thread . Do not update or create widgets.. these rules Swing can make some very attractive and RESPONSIVE GUIs An example of some REALLY awesome Swing UI work Palantir..
Hibernate Criteria returns children multiple times with FetchType.EAGER http://stackoverflow.com/questions/1995080/hibernate-criteria-returns-children-multiple-times-with-fetchtype-eager SELECT o. l. from ORDER o LEFT OUTER JOIN LINE_ITEMS l ON o.ID l.ORDER_ID Want to know why the duplicates are there Look..
calling non-static method in static method in Java http://stackoverflow.com/questions/2042813/calling-non-static-method-in-static-method-in-java By definition a non static method is one that is called ON an instance of some class whereas a static method belongs to..
Hibernate Criteria and multiple join http://stackoverflow.com/questions/2252468/hibernate-criteria-and-multiple-join D.something from A JOIN B on A.id B.id_fk JOIN C ON B.id C.id_fk JOIN D ON C.id D.id_fk java hibernate join criteria.. A JOIN B on A.id B.id_fk JOIN C ON B.id C.id_fk JOIN D ON C.id D.id_fk java hibernate join criteria share improve this..
Foreign key constraints in Android using SQLite? on Delete cascade http://stackoverflow.com/questions/2545558/foreign-key-constraints-in-android-using-sqlite-on-delete-cascade TABLE TABLE_NAME _ID INTEGER PRIMARY KEY AUTOINCREMENT LONGITUDE INTEGER LATITUDE INTEGER TIME INTEGER TRACK_ID_FK INTEGER.. foreign key constraints db.execSQL PRAGMA foreign_keys ON I declared my referencing column as follows. mailbox_id INTEGER..
Sqlite table constraint - unique on multiple columns http://stackoverflow.com/questions/2701877/sqlite-table-constraint-unique-on-multiple-columns . CREATE TABLE name column defs UNIQUE col_name1 col_name2 ON CONFLICT REPLACE I'm doing this based on the following table.. TABLE name column defs UNIQUE col_name1 col_name2 ON CONFLICT REPLACE I'm doing this based on the following table constraint.. clear the documentation on the link I provided says that CONTSTRAINT name should come before my constraint definition. Something..
How to disable a particular checkstyle rule for a particular line of code? http://stackoverflow.com/questions/4023185/how-to-disable-a-particular-checkstyle-rule-for-a-particular-line-of-code String arg1 String arg2 String arg3 String arg4 CHECKSTYLE ON Or even better use this more tweaked version module name SuppressionCommentFilter.. w property name onCommentFormat value CHECKSTYLE.ON w property name checkFormat value 1 module which allows you.. than catching 7 exceptions catch Exception e CHECKSTYLE.ON IllegalCatch See also module name SuppressionFilter property..
What code analysis tools do you use for your Java projects? [closed] http://stackoverflow.com/questions/4080/what-code-analysis-tools-do-you-use-for-your-java-projects and on contain the strings CHECKSTYLE OFF and CHECKSTYLE ON respectively. Changing this configuration with Checkstyle's.. UWF_ FIELD_ NOT_ INITIALIZED_ IN_ CONSTRUCTOR These techniques makes things look reasonably consistent..
JPA native query join returns object but dereference throws class cast exception http://stackoverflow.com/questions/4536655/jpa-native-query-join-returns-object-but-dereference-throws-class-cast-exception t1.anotherNum FROM MasatosanTest t1 JOIN MasatoView v1 ON v1.username t1.username System.out.println get join jpql native..
http://stackoverflow.com/questions/5995798/java-text-on-image image blurry and text distorted. I have TEXT ANTIALIASING ON . It can be seen as attached. java image image processing graphics..
Handling the concurrent request while persisting in oracle database? http://stackoverflow.com/questions/7455726/handling-the-concurrent-request-while-persisting-in-oracle-database p_version RETURNING version_no INTO p_version EXCEPTION WHEN NOT_FOUND THEN Generate a custom exception concurrency.. OR REPLACE TRIGGER t1_version AFTER INSERT OR UPDATE ON t1 FOR EACH ROW BEGIN IF new.version_no IS NULL THEN new.version_no..
parse google geocode with xstream http://stackoverflow.com/questions/906855/parse-google-geocode-with-xstream Status Placemark id p1 address 98 St Patrick St Toronto ON Canada address AddressDetails Accuracy 8 xmlns urn oasis names.. CountryName AdministrativeArea AdministrativeAreaName ON AdministrativeAreaName Locality LocalityName Toronto LocalityName..
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