java Programming Glossary: returnHow to upload files to server using JSP/Servlet? http://stackoverflow.com/questions/2422468/how-to-upload-files-to-server-using-jsp-servlet multipart form data to the form then request.getParameter returns null . During research I stumbled upon Apache Common FileUpload.. . The request.getParameter and consorts would all return null when using multipart form data. Don't manually parse it.. filename cd.substring cd.indexOf ' ' 1 .trim .replace return filename.substring filename.lastIndexOf ' ' 1 .substring filename.lastIndexOf..
Overriding equals and hashCode in Java http://stackoverflow.com/questions/27581/overriding-equals-and-hashcode-in-java if the objects are not modified then it must keep returning the same value . Furthermore o.equals null must always return.. the same value . Furthermore o.equals null must always return false. hashCode javadoc must also be consistent if the object.. the object is not modified in terms of equals it must keep returning the same value . The relation between the two methods is..
GUI not working after rewriting to MVC http://stackoverflow.com/questions/3066590/gui-not-working-after-rewriting-to-mvc Pin int r int c X 0 Y 0 radius r color c public int getX return X public int getY return Y public int getRadius return radius.. radius r color c public int getX return X public int getY return Y public int getRadius return radius public void setRadius int.. return X public int getY return Y public int getRadius return radius public void setRadius int r radius r public void setPosition..
How do servlets work? Instantiation, session variables and multithreading http://stackoverflow.com/questions/3106452/how-do-servlets-work-instantiation-session-variables-and-multithreading won't be sent anymore. A new request.getSession would return a brand new HttpSession and set a cookie with a brand new session..
JSTL in JSF2 Facelets… makes sense? http://stackoverflow.com/questions/3342984/jstl-in-jsf2-facelets-makes-sense the view scoped bean by a JSTL tag attribute then it won't return the value you expect or it will be lost in the real view scoped..
http://stackoverflow.com/questions/40480/is-java-pass-by-reference .equals Max true In this example aDog.getName will still return Max . d is not overwritten in the function as the object reference..
Algorithm - How to delete duplicate elements in a list efficiently? http://stackoverflow.com/questions/1801459/algorithm-how-to-delete-duplicate-elements-in-a-list-efficiently add it to M and to S. Repeat for all elements in L. Return M. In Python L 2 1 4 3 5 1 2 1 1 6 5 S set M for e in L .....
Why does int num = Integer.getInteger(“123”) throw NullPointerException? http://stackoverflow.com/questions/3123349/why-does-int-num-integer-getinteger123-throw-nullpointerexception a variation of this problem was featured in Return of the Puzzlers Schlock and Awe TS 5186 Josh Bloch and Neal..
ExecutorService, how to wait for all tasks to finish http://stackoverflow.com/questions/3269445/executorservice-how-to-wait-for-all-tasks-to-finish questions on SO How to wait for all threads to finish Return values from java threads invokeAll not willing to accept a Collection..
Howto unescape a Java string literal in Java http://stackoverflow.com/questions/3537706/howto-unescape-a-java-string-literal-in-java if saw_backslash newstr.append ' ' return newstr.toString Return a string U XX.XXX.XXXX etc where each XX set is the xdigits..
Ideal method to truncate a string with ellipsis http://stackoverflow.com/questions/3597550/ideal-method-to-truncate-a-string-with-ellipsis any characters. Is there an ideal method Here is mine Return a string with a maximum length of code length code characters...
how to handle bad file selection for image display in swing http://stackoverflow.com/questions/4053090/how-to-handle-bad-file-selection-for-image-display-in-swing MyImagePanel this.setPreferredSize new Dimension 500 700 Return true if read succeeded. public boolean setImage File f try..
Java color code convert to color name http://stackoverflow.com/questions/4126029/java-color-code-convert-to-color-name colorI.getGreen Math.abs myColor.getBlue colorI.getBlue 3 Return the name of colorI for which rgbDistance was a smallest. share..
Fast transcendent / trigonometric functions for Java http://stackoverflow.com/questions/523531/fast-transcendent-trigonometric-functions-for-java has arcsin and arctan. #include math.h #include stdio.h Return an approx to sin pi 2 x where 1 x 1. In that range it has a..
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 class ChartPanelDemo private static final String title Return On Investment private ChartPanel chartPanel createChart public..
JAX-RS / Jersey how to customize error handling? http://stackoverflow.com/questions/583973/jax-rs-jersey-how-to-customize-error-handling name String name @QueryParam birthDate Date birthDate Return a greeting with the name and age This works great and handles..
Java XPath (Apache JAXP implementation) performance http://stackoverflow.com/questions/6340802/java-xpath-apache-jaxp-implementation-performance ss.getSystemProperty factoryId if systemProp null Return early from the method return systemProp catch SecurityException..
Return data from AsyncTask class http://stackoverflow.com/questions/7618614/return-data-from-asynctask-class data from AsyncTask class How do I get the data from my AsyncTask..
how to convert milliseconds to date format in android? http://stackoverflow.com/questions/7953725/how-to-convert-milliseconds-to-date-format-in-android getDate 82233213123L dd MM yyyy hh mm ss.SSS Return date in specified format. @param milliSeconds Date in milliseconds..
How do I detect which kind of JRE is installed — 32bit vs. 64bit http://stackoverflow.com/questions/807263/how-do-i-detect-which-kind-of-jre-is-installed-32bit-vs-64bit to be running on architectures they weren't written for. Return values seem to be inconsistent . The NetBeans Installer team..
http://stackoverflow.com/questions/8267928/android-rest-client-sample response null Use HTTP Client APIs to make the call. Return the HTTP Response body here. return response @Override protected.. String... arg0 Use HTTP client API's to do the POST Return response. @Override protected void onPostExecute String result..
What is the proper way to re-attach detached objects in Hibernate? http://stackoverflow.com/questions/912659/what-is-the-proper-way-to-re-attach-detached-objects-in-hibernate currently associated with the session it will be loaded. Return the persistent instance. If the given instance is unsaved save..
Problems passing class objects through GWT RPC http://stackoverflow.com/questions/958879/problems-passing-class-objects-through-gwt-rpc stock.getSymbol Modify the StockServiceImpl Class to Return StockClient Finally we modify the getStocks method of the StockServiceImpl..
How does the String class override the + operator? http://stackoverflow.com/questions/11408427/how-does-the-string-class-override-the-operator Ljava lang String ASTORE 4 L4 LINENUMBER 27 L4 RETURN Looking at the example above and how the byte code based on..
How to get UTF-8 working in java webapps? http://stackoverflow.com/questions/138948/how-to-get-utf-8-working-in-java-webapps `pathToNode` CREATE FUNCTION `pathToNode` ryhma_id INT RETURNS TEXT CHARACTER SET utf8 READS SQL DATA BEGIN DECLARE path VARCHAR.. path VARCHAR 255 CHARACTER SET utf8 SET path NULL ... RETURN path END DELIMITER GET requests latin1 and UTF 8 If and when..
How to call Oracle Function or Procedure using Hibernate 4 (EntityManager) or JPA 2 http://stackoverflow.com/questions/14335939/how-to-call-oracle-function-or-procedure-using-hibernate-4-entitymanager-or-jp create or replace FUNCTION my_function p_val IN varchar2 RETURN SYS_REFCURSOR AS my_cursor SYS_REFCURSOR BEGIN OPEN my_cursor.. FROM employees WHERE lower emp_name like lower p_val ' ' RETURN my_cursor END My Entity class @Entity @javax.persistence.NamedNativeQuery..
Getting the Return Value from JDBC MSSQL http://stackoverflow.com/questions/1947754/getting-the-return-value-from-jdbc-mssql This question is specifically about how to get the RETURN VALUE as opposed to a Result Set . The Return Value is an integer.. no Result Set or if you specifically state something like RETURN 0 in your SQL. EDIT 2 executeUpdate returns an int but this..
What is the equivalent of Oracle?䏭 REF CURSOR in MySQL when using JDBC? http://stackoverflow.com/questions/273929/what-is-the-equivalent-of-oracles-ref-cursor-in-mysql-when-using-jdbc declare a reference cursor... TYPE t_spool IS REF CURSOR RETURN spool ROWTYPE ...and use it to pass a cursor as the return value..... to pass a cursor as the return value... FUNCTION end_spool RETURN t_spool AS v_spool t_spool BEGIN COMMIT OPEN v_spool FOR SELECT.. SELECT FROM spool WHERE key g_spool_key ORDER BY seq RETURN v_spool END end_spool ...and then capture it as a result set..
How to emit and execute Java bytecode at runtime? http://stackoverflow.com/questions/4016305/how-to-emit-and-execute-java-bytecode-at-runtime INVOKESPECIAL java lang Object init V mv.visitInsn RETURN Label l1 new Label mv.visitLabel l1 mv.visitLocalVariable this.. mv.visitLabel l1 mv.visitLineNumber 8 l1 mv.visitInsn RETURN Label l2 new Label mv.visitLabel l2 mv.visitLocalVariable args.. INVOKESPECIAL java lang Object init V mv.visitInsn RETURN Label l1 new Label mv.visitLabel l1 mv.visitLocalVariable this..
What's the penalty for Synthetic methods? http://stackoverflow.com/questions/5557955/whats-the-penalty-for-synthetic-methods INVOKESPECIAL java lang Object init V ctor.visitInsn RETURN ctor.visitMaxs 1 1 ctor.visitEnd MethodVisitor getBaz cw.visitMethod.. Foo access 000 LFoo Ljava lang Object getBaz.visitInsn ARETURN getBaz.visitMaxs 1 2 getBaz.visitEnd cw.visitEnd return cw.toByteArray..
Converting a Java Keystore into PEM Format http://stackoverflow.com/questions/652916/converting-a-java-keystore-into-pem-format password Re enter new password Enter key password for RETURN if same as keystore password bash keytool keystore foo.jks exportcert..
Return data from AsyncTask class http://stackoverflow.com/questions/7618614/return-data-from-asynctask-class void onPostExecute String result THIS IS WHERE I NEED TO RETURN MY DATA TO THE MAIN ACTIVITY. I am guessing public void getJSON..
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