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java Programming Glossary: sameOverriding equals and hashCode in Java http://stackoverflow.com/questions/27581/overriding-equals-and-hashcode-in-java objects are not modified then it must keep returning the same value . Furthermore o.equals null must always return false... not modified in terms of equals it must keep returning the same value . The relation between the two methods is Whenever a.equals.. two methods is Whenever a.equals b then a.hashCode must be same as b.hashCode . In practice If you override one then you should..
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 All the following subsequent URLConnections will use the same cookie manager. URLConnection connection new URL url .openConnection.. .get Set Cookie ... Then use the same cookies on all subsequent requests. connection new URL url .openConnection..
GUI not working after rewriting to MVC http://stackoverflow.com/questions/3066590/gui-not-working-after-rewriting-to-mvc somewhat more complex game was designed to illustrate the same concepts. Addendum I've modified the original example to show..
How do servlets work? Instantiation, session variables and multithreading http://stackoverflow.com/questions/3106452/how-do-servlets-work-instantiation-session-variables-and-multithreading whose url pattern matches the request URL all in the same thread. The request object provides access to all information.. with the cookie specified will not have access to the same session anymore. The servletcontainer will create a new one... long as the client is interacting with the webapp with the same browser instance and the session hasn't timed out at the server..
How to avoid Java Code in JSP-Files? http://stackoverflow.com/questions/3177733/how-to-avoid-java-code-in-jsp-files coding conventions to avoid use of scriptlets whenever the same functionality is possible by tag classes. Here are several cites.. in a fullworthy Java class. If you want to invoke the same Java code on every request less or more regardless of the requested.. JSP pages of interest then you don't need to copypaste the same piece of code over all JSP pages. If you want to invoke some..
How to choose the right bean scope? http://stackoverflow.com/questions/7031885/how-to-choose-the-right-bean-scope scoped bean lives as long as you're interacting with the same JSF view by postbacks returning null void . A session scoped.. wide data constants such as dropdown lists which are the same for everyone. Abusing an application scoped bean for session..
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 have been told this With layouts the answer is always the same use a suitable LayoutManager I have searched the web a little..
Java String.equals versus == [duplicate] http://stackoverflow.com/questions/767372/java-string-equals-versus are usually interned such that two constants with the same value can actually be compared with but it's better not to rely..
The Use of Multiple JFrames, Good/Bad Practice? http://stackoverflow.com/questions/9554636/the-use-of-multiple-jframes-good-bad-practice 'single row' part of that only works if they are all the same dimensions. Alternately if you are prepared to scale the images.. to scale the images on the fly and they are all the same aspect ratio e.g. 4 3 or 16 9 . share improve this answer..
Execute JSP directly from Java http://stackoverflow.com/questions/1075827/execute-jsp-directly-from-java submit HTTP requests to it and capture the output. 2. Same as above but you can run embedded Servlet Container e.g. Jetty..
Is String Literal Pool a collection of references to the String Object, Or a collection of Objects http://stackoverflow.com/questions/11700320/is-string-literal-pool-a-collection-of-references-to-the-string-object-or-a-co code should give you some hint... Class constant pool Same as above. Byte code ldc #2 String abc astore_1 one new #3 class..
Why are these == but not `equals()`? http://stackoverflow.com/questions/1259693/why-are-these-but-not-equals instance so different. X unboxed then same value so equal. Same value so equal. y cannot be boxed to an Integer so cannot be..
Why equal operator works for Integer value until 128 number? http://stackoverflow.com/questions/15024933/why-equal-operator-works-for-integer-value-until-128-number Value i Different values else System.out.println Value i Same values Some part of console output Value 124 Same values Value.. Value i Same values Some part of console output Value 124 Same values Value 125 Same values Value 126 Same values Value 127.. part of console output Value 124 Same values Value 125 Same values Value 126 Same values Value 127 Same values Value 128..
Steps in creating a web service using Axis2 - The client code http://stackoverflow.com/questions/2559074/steps-in-creating-a-web-service-using-axis2-the-client-code technologies. An impressive tool. Option 3 Groovy client Same approach for other JVM based languages Use the wsdl2java tool..
Howto bring a Java window to the front? http://stackoverflow.com/questions/309023/howto-bring-a-java-window-to-the-front flashes the frame doesn't come to the front anymore. Same goes for Win2k. On Vista it seems to work fine. Anyone ideas..
http://stackoverflow.com/questions/4031572/sorted-array-list-in-java element to the end of this list optional operation . Same reasoning applies for both versions of add both versions of..
Swing: link toggle buttons together with a button group, along with corresponding menu items http://stackoverflow.com/questions/4038605/swing-link-toggle-buttons-together-with-a-button-group-along-with-correspondin appropriate menu item and deselects the other menu items. Same for selecting one of the menu items. I know I can group any..
How to parse XML using the SAX parser http://stackoverflow.com/questions/4827344/how-to-parse-xml-using-the-sax-parser public void end String body channel.setTitle body Same thing happens for the other elements of channel ex. On every..
Android - What's the best way to share data between activities? http://stackoverflow.com/questions/4878159/android-whats-the-best-way-to-share-data-between-activities String data DataHolder.getData HashMap of WeakReferences Same idea but allowing the garbage collector to removed unreferenced..
Are getters and setters poor design? [closed] http://stackoverflow.com/questions/565095/are-getters-and-setters-poor-design hp Set in constructor. public boolean isAlive return hp 0 Same method signature. public void kill hp 0 Same method signature... return hp 0 Same method signature. public void kill hp 0 Same method signature. public void damage int damage hp damage ..
Why do we usually use `||` not `|`, what is the difference? http://stackoverflow.com/questions/7101992/why-do-we-usually-use-not-what-is-the-difference true pass if false false no pass Can we use instead of Same thing with and . java bitwise operators share improve this..
Aggregation versus Composition http://stackoverflow.com/questions/734891/aggregation-versus-composition of a car well composition would be quite fine. Chess board Same problem. A chess piece doesn't exist without a chess board only..
How can you run Javascript using Rhino for Java in a sandbox? http://stackoverflow.com/questions/93911/how-can-you-run-javascript-using-rhino-for-java-in-a-sandbox disgruntled script writer decided to delete files Database Same thing delete database records Basically I need to setup the..
http://stackoverflow.com/questions/10306901/how-to-change-highlighting-color-in-java-swing-textarea-and-also-change-the-be FIRST LINE SECOND REMOVED HIGHLIGHT HIGHLIGHTING THE SAME LINE WITH DIFFERENT COLOUR LATEST EDIT in lines with the SAMPLE..
Can I pass parameters by reference in Java? http://stackoverflow.com/questions/1068760/can-i-pass-parameters-by-reference-in-java o private void mutate Object o o Goodbye NOT THE SAME o Will print Hello to the console. The options if you wanted..
ejb lookup failing with NamingException http://stackoverflow.com/questions/1473939/ejb-lookup-failing-with-namingexception class. The matching ejbCreate METHOD method MUST HAVE THE SAME NUMBER AND TYPES OF ARGUMENTS. The create method for a stateless..
What is the difference between identity and equality in OOP? http://stackoverflow.com/questions/1692863/what-is-the-difference-between-identity-and-equality-in-oop this question basically identity a variable holds the SAME instance as another variable. equality two distinct objects..
AES gets different results in iOS and Java http://stackoverflow.com/questions/17535918/aes-gets-different-results-in-ios-and-java byte clearText text.getBytes UTF8 IMPORTANT TO GET SAME RESULTS ON iOS and ANDROID final byte iv new byte 16 Arrays.fill.. text try SecretKey key getKey password IMPORTANT TO GET SAME RESULTS ON iOS and ANDROID final byte iv new byte 16 Arrays.fill..
What does it mean for a method to be public/private/other in java? [closed] http://stackoverflow.com/questions/2647289/what-does-it-mean-for-a-method-to-be-public-private-other-in-java private it means it can only be accessed by objects OF THE SAME CLASS For instance in this new definition class David public..
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 i len i if data.charAt i ' ' doThrow return len charAt2 SAME AS ABOVE BUT USE String.length INSTEAD OF MAKING A FINAL LOCAL.. .anyMatch predicate doThrow return data.length streamPara SAME AS ABOVE BUT OH LA LA GO PARALLEL avoid this at all costs int.. int i 0 i len i if copy i ' ' doThrow return len new2 SAME AS ABOVE BUT USE FOR EACH int newMethod2 final String data for..
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