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java Programming Glossary: doingJComponents not showing up with picture background? http://stackoverflow.com/questions/11369171/jcomponents-not-showing-up-with-picture-background them in the form of a URL instead of File as you are doing. Uncomment this below line and watch this answer of mine as..
How to round a number to n decimal places in Java http://stackoverflow.com/questions/153724/how-to-round-a-number-to-n-decimal-places-in-java should not be any trailing zeroes. I know one method of doing this is to use the String.format method String.format .5g n..
How to append text to an existing file in Java http://stackoverflow.com/questions/1625234/how-to-append-text-to-an-existing-file-in-java io io text files share improve this question Are you doing this for logging purposes If so Apache Log4j is the de facto..
Questions about Java's String pool http://stackoverflow.com/questions/1881922/questions-about-javas-string-pool String is immutable in Java you're not gaining anything by doing this calling new String literal never makes sense in Java and..
Java: recommended solution for deep cloning/copying an instance http://stackoverflow.com/questions/2156120/java-recommended-solution-for-deep-cloning-copying-an-instance instance I'm wondering if there is a recommended way of doing deep clone copy of instance in java. I have 3 solutions in mind..
Efficient equivalent for removing elements while iterating the Collection http://stackoverflow.com/questions/223918/efficient-equivalent-for-removing-elements-while-iterating-the-collection ... even though multiple threads aren't doing it... Anyway. What's the best solution to this problem Best..
http://stackoverflow.com/questions/2839321/java-connectivity-with-mysql this question DriverManager is a fairly old way of doing things. The better way is to get a DataSource either by looking..
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 service and post results to the UI with easily. If you are doing something like that in your app it could be really useful. 3...
When to use LinkedList<> over ArrayList<>? http://stackoverflow.com/questions/322715/when-to-use-linkedlist-over-arraylist over an ArrayList is technically faster but unless you're doing something really performance sensitive you shouldn't worry about..
Design Patterns web based applications http://stackoverflow.com/questions/3541077/design-patterns-web-based-applications is what the FacesContext and ExternalContext classes are doing. Then there's the State pattern for the case that you'd like.. the actions. In JSF terms this is what the LifeCycle is doing. Then there's the Composite pattern for the case that you'd..
How do I write a correct micro-benchmark in Java? http://stackoverflow.com/questions/504103/how-do-i-write-a-correct-micro-benchmark-in-java that the compiler and other parts of the JVM are not doing unexpected work during your timing phase. Rule 2.1 Print messages..
Using JFreeChart to display recent changes in a time series http://stackoverflow.com/questions/5048852/using-jfreechart-to-display-recent-changes-in-a-time-series
How to best position Swing GUIs http://stackoverflow.com/questions/7143287/how-to-best-position-swing-guis another thread I stated that I liked to center my GUIs by doing something like this JFrame frame new JFrame Foo frame.setDefaultCloseOperation..
How do I copy an object in Java? http://stackoverflow.com/questions/869033/how-do-i-copy-an-object-in-java without affecting the 'dumtwo'. But the above code is not doing that. When I change something in 'dum' the same change is happening..
Capturing stdout when calling Runtime.exec http://stackoverflow.com/questions/882772/capturing-stdout-when-calling-runtime-exec spidey sense is telling me there's a more elegant way of doing it. Suggestions java shell runtime share improve this question..
The Use of Multiple JFrames, Good/Bad Practice? http://stackoverflow.com/questions/9554636/the-use-of-multiple-jframes-good-bad-practice or the other the size varies according to what the user is doing. JLayeredPane far many well ..layered components. JToolBar typically.. above will minimize restore according to the parent doing so. As items in a JList simple example below . As nodes in a..
http://stackoverflow.com/questions/9864267/load-icon-image-exception Images to your Resource Folder in the Project If you are doing it manually How to add Images to your Project How to Use Icons..
http://stackoverflow.com/questions/995514/https-connection-android Connection Android I am doing a https post and I'm getting an exception of ssl exception Not..
How can I compile and deploy a java class at runtime? http://stackoverflow.com/questions/1064259/how-can-i-compile-and-deploy-a-java-class-at-runtime code. I then wish to compile and run this code at runtime. Doing so would mean that my rule engine no longer acts as an interpreter..
What happens when Java Compiler sees many String concatenations in one line? http://stackoverflow.com/questions/1296571/what-happens-when-java-compiler-sees-many-string-concatenations-in-one-line if they are at the beginning of the concatenation. Doing otherwise would break order of operations although in this case..
Copy directory from a jar file http://stackoverflow.com/questions/1386809/copy-directory-from-a-jar-file template dir in the resource path having a zip file of it. Doing it this way I could get the file as an inputStream and unzip..
Java Instance Variables vs Local Variables http://stackoverflow.com/questions/1794141/java-instance-variables-vs-local-variables and it only could only work in a single thread situation. Doing things like this will produce really brittle code that seems..
Why java.lang.Object is not abstract? [duplicate] http://stackoverflow.com/questions/2117689/why-java-lang-object-is-not-abstract could be constructed any time we wanted to synchronise. Doing this would have the added benefit of creating a stronger statement..
Why does appending “” to a String save memory? http://stackoverflow.com/questions/2147783/why-does-appending-to-a-string-save-memory performance string memory share improve this question Doing the following data.substring x y creates a new smaller String..
Java - How to change context root of a dynamic web project in eclipse http://stackoverflow.com/questions/2437465/java-how-to-change-context-root-of-a-dynamic-web-project-in-eclipse app with the new app URL such as http localhost 8080 app Doing this outside of Eclipse on your production server is even easier..
Windows: how to get a list of all visible windows? http://stackoverflow.com/questions/3188484/windows-how-to-get-a-list-of-all-visible-windows A is at 120 20 windows B is at 210 40 windows C is at 0 0 Doing this under OS X requires the use of amazingly weird hacks like..
What is the best way to remove duplicates in an Array in Java? http://stackoverflow.com/questions/357421/what-is-the-best-way-to-remove-duplicates-in-an-array-in-java and equals and use something that implements Set . Doing so also makes it absolutely clear to any other developers that..
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 just fine I am not sure it can handle two parallel groups. Doing it without ButtonGroup would mean in each of the 6 event listeners..
JAX-WS client : what's the correct path to access the local WSDL? http://stackoverflow.com/questions/4163586/jax-ws-client-whats-the-correct-path-to-access-the-local-wsdl the wsdllocation option to the wsdl to java compiler. Doing so will change your proxy code from static URL url null try..
http://stackoverflow.com/questions/4379485/restful-on-play-framework You don't specify any content type here. Doing so is IMHO only necessary when you want to have special URIs..
how to encode URL to avoid special characters in java http://stackoverflow.com/questions/4571346/how-to-encode-url-to-avoid-special-characters-in-java an unencoded URL and then pass it through a URLEncoder . Doing so will result in problems particularly the aforementioned one..
Use of the String(String) constructor in Java [duplicate] http://stackoverflow.com/questions/465627/use-of-the-stringstring-constructor-in-java can return strings which share the same value array. Doing this at the cost of adding 8 bytes to each and every String..
http://stackoverflow.com/questions/5445511/how-do-i-create-a-parent-last-child-first-classloader-in-java-or-how-to-overr you though the innards of class loading are a scary place. Doing this makes me think that the designers of Java never imagined..
The case against checked exceptions http://stackoverflow.com/questions/613954/the-case-against-checked-exceptions but I always catch the specific exceptions I need to. Doing that allows me to at the very least display an appropriate error..
http://stackoverflow.com/questions/658407/static-methods to make such functions static methods of a class. Doing so groups them logically and eliminates possible name conflicts...
Synchronizing on an Integer value [duplicate] http://stackoverflow.com/questions/659915/synchronizing-on-an-integer-value incurring a very small cost to each access to the cache. Doing this you guarantee that this class will be doing its synchronization..
Why are annotations under Android such a performance issue (slow)? http://stackoverflow.com/questions/7417426/why-are-annotations-under-android-such-a-performance-issue-slow bunch of append methods without a good initializing size. Doing the .equals by comparing fields would be significantly faster...
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