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java Programming Glossary: thenHow 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 the parameters are in. If you don't send any query string then you can leave the Accept Charset header away. If you don't need.. Charset header away. If you don't need to set any headers then you can even use the URL#openStream shortcut method. InputStream.. ... Either way if the other side is a HttpServlet then its doGet method will be called and the parameters will be available..
How to avoid Java Code in JSP-Files? http://stackoverflow.com/questions/3177733/how-to-avoid-java-code-in-jsp-files client's requests into a proper client ready format. Even then this would be better done with a front controller servlet or.. the requested page e.g. checking if an user is logged in then implement a filter and write code accordingly in doFilter method... appropriate url pattern covering the JSP pages of interest then you don't need to copypaste the same piece of code over all..
The Use of Multiple JFrames, Good/Bad Practice? http://stackoverflow.com/questions/9554636/the-use-of-multiple-jframes-good-bad-practice on the content of that dialog choose fix cancel this then proceed. Multiple frames do not. A dialog or floating tool bar.. use case try the following. Establish a single main JFrame then have JDialog or JOptionPane instances appear for the rest of..
Why is processing a sorted array faster than an unsorted array? http://stackoverflow.com/questions/11227809/why-is-processing-a-sorted-array-faster-than-an-unsorted-array will stop back up and yell at you to flip the switch. Then it can restart down the other path. If you guess right every.. and wait until the previous instructions are complete. Then you continue down the correct path. Modern processors are complicated.. need to flush the pipeline and roll back to the branch. Then you can restart down the other path. If you guess right every..
JComponents not showing up with picture background? http://stackoverflow.com/questions/11369171/jcomponents-not-showing-up-with-picture-background do let me know if you understood what is going on in here. Then only we will go a step further slowly slowly. Try to go through..
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 if the method has no arguments only give methodName . Then you invoke that method by calling try method.invoke obj arg1..
Floating point arithmetic not producing exact results in Java http://stackoverflow.com/questions/1661273/floating-point-arithmetic-not-producing-exact-results-in-java exact decimal values you should use java.math.BigDecimal . Then read What Every Computer Scientist Should Know About Floating..
Java web development, what skills do I need? [closed] http://stackoverflow.com/questions/1958808/java-web-development-what-skills-do-i-need and if possible go get a SCJP book or course as well. Then you can start with JSP Servlet to learn the basic concepts of..
How to upload files to server using JSP/Servlet? http://stackoverflow.com/questions/2422468/how-to-upload-files-to-server-using-jsp-servlet public class UploadServlet extends HttpServlet ... Then implement its doPost as follows protected void doPost HttpServletRequest..
http://stackoverflow.com/questions/2723397/java-generics-what-is-pecs to go through the collection and do things with each item. Then the list is a producer so you should use a Collection extends.. holds. Case 2 You want to add things to the collection. Then the list is a consumer so you should use a Collection super..
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 cookies connection.getHeaderFields .get Set Cookie ... Then use the same cookies on all subsequent requests. connection..
Design Patterns web based applications http://stackoverflow.com/questions/3541077/design-patterns-web-based-applications access to the Data Model by EL Expression Language . Then there are variations based on how actions and events are handled... the FacesContext and ExternalContext classes are doing. Then there's the State pattern for the case that you'd like to add.. actions. In JSF terms this is what the LifeCycle is doing. Then there's the Composite pattern for the case that you'd like to..
Creating a custom button in Java with JButton http://stackoverflow.com/questions/5751311/creating-a-custom-button-in-java-with-jbutton you will get idea the first move is to subclass JButton . Then in your subclass start by redefining the paintComponent Graphics.. paintComponent Graphics method. If you want any changes. Then override paintBorder Graphics to give it a shape of hexagon..
Java inner class and static nested class http://stackoverflow.com/questions/70324/java-inner-class-and-static-nested-class an inner class you must first instantiate the outer class. Then create the inner object within the outer object with this syntax..
How to reference components in JSF ajax? Cannot find component with identifier “foo” in view http://stackoverflow.com/questions/8634156/how-to-reference-components-in-jsf-ajax-cannot-find-component-with-identifier NamingContainer by the rules in the previous bullet point. Then the findComponent method of this NamingContainer will be called..
Java 256-bit AES Password-Based Encryption http://stackoverflow.com/questions/992019/java-256-bit-aes-password-based-encryption need to be kept secret with the recipient out of band. Then to derive a good key from this information in Java 6 Derive.. in exactly the same way using the same salt and password. Then initialize the cipher with the key and the initialization vector...
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 edge of the string. A b boundary means IF does follow word THEN doesn't precede word ELSIF doesn't follow word THEN does precede.. word THEN doesn't precede word ELSIF doesn't follow word THEN does precede word And those are all defined perfectly straightforwardly.. word is w . doesn ™t precede word is w . Therefore since IF THEN is encoded as an and Šed together AB in regexes an or is X Y..
Why my antlr lexer java class is “code too large”? http://stackoverflow.com/questions/6283980/why-my-antlr-lexer-java-class-is-code-too-large 'SELECT' SET 'SET' SMALLINT 'SMALLINT' TABLE 'TABLE' THEN 'THEN' TINYINT 'TINYINT' UPDATE 'UPDATE' USE 'USE' VALUES 'VALUES'.. 'SELECT' SET 'SET' SMALLINT 'SMALLINT' TABLE 'TABLE' THEN 'THEN' TINYINT 'TINYINT' UPDATE 'UPDATE' USE 'USE' VALUES 'VALUES'..
Handling the concurrent request while persisting in oracle database? http://stackoverflow.com/questions/7455726/handling-the-concurrent-request-while-persisting-in-oracle-database version_no INTO p_version EXCEPTION WHEN NOT_FOUND THEN Generate a custom exception concurrency viloation the record.. UPDATE ON t1 FOR EACH ROW BEGIN IF new.version_no IS NULL THEN new.version_no 0 ELSE new.version_no old.version_no 1 END IF..
Is MERGE an atomic statement in SQL2008? http://stackoverflow.com/questions/9871644/is-merge-an-atomic-statement-in-sql2008 ID AS NetValue AS VoidValue AS V ON T.ID V.ID WHEN MATCHED THEN UPDATE SET T.ID V.ID T.NetValue T.NetValue V.NetValue T.VoidValue.. T.VoidValue T.VoidValue V.VoidValue WHEN NOT MATCHED THEN INSERT ID NetValue VoidValue VALUES V.ID V.NetValue V.VoidValue.. ID AS NetValue AS VoidValue AS V ON T.ID V.ID WHEN MATCHED THEN UPDATE SET T.ID V.ID T.NetValue T.NetValue V.NetValue T.VoidValue..
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