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java Programming Glossary: performJava NIO FileChannel versus FileOutputstream performance / usefulness http://stackoverflow.com/questions/1605332/java-nio-filechannel-versus-fileoutputstream-performance-usefulness NIO FileChannel versus FileOutputstream performance usefulness I am trying to figure out if there is any difference.. I am trying to figure out if there is any difference in performance or advantages when we use nio FileChannel versus normal.. files to filesystem. I observed that on my machine both perform at the same level also many times the FileChannel way is slower...
http://stackoverflow.com/questions/1813881/java-ocr-implementation implementations in pure Java I'm curious how this would perform purely in Java and OCR in general interests me so I'd love to.. in proprietary solutions as I could at least check out the performance in that case. I've seen a couple which can be used in Java..
What is difference between “Class.forName()” and “Class.forName().newInstance()”? http://stackoverflow.com/questions/2092659/what-is-difference-between-class-forname-and-class-forname-newinstance API which loads at runtime the exact driver required to perform the work. EJBs containers Servlet containers are other good..
Javax.swing timer repeats fine, but ActionListener doesn't do anything http://stackoverflow.com/questions/2123841/javax-swing-timer-repeats-fine-but-actionlistener-doesnt-do-anything together and we have two actions without a break that perform the same toggle. Two toggles. The state does not change although..
http://stackoverflow.com/questions/2723397/java-generics-what-is-pecs and thus each element will behave as a Thing when you perform your operation. You actually cannot add anything to a Collection..
Why not use Double or Float to represent currency? http://stackoverflow.com/questions/3730019/why-not-use-double-or-float-to-represent-currency will round it to 0.1 when displaying it. However as you perform more additions subtractions multiplications and divisions on..
Singletons vs. Application Context in Android? http://stackoverflow.com/questions/3826905/singletons-vs-application-context-in-android
http://stackoverflow.com/questions/394616/running-jar-file-in-windows the Java interpreter javaw.exe. In the Application used to perform action field needs to display something similar to C Program..
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 effective approach if you have two or more components that perform the same function as discussed in How to Use Actions . In particular..
Differences between HashMap and Hashtable? http://stackoverflow.com/questions/40471/differences-between-hashmap-and-hashtable threaded applications as unsynchronized Objects typically perform better than synchronized ones. Hashtable does not allow null..
Find Java classes implementing an interface [duplicate] http://stackoverflow.com/questions/435890/find-java-classes-implementing-an-interface ASM library. You can use reflection but ASM turned out to perform better. I put my package in an open source library I have on..
Trust Store vs Key Store - creating with keytool http://stackoverflow.com/questions/6340918/trust-store-vs-key-store-creating-with-keytool files see this question and keytool is just a tool to perform various operations on them import export list ... . The javax.net.ssl.keyStore..
How do I make an http request using cookies on Android? http://stackoverflow.com/questions/678630/how-do-i-make-an-http-request-using-cookies-on-android that demonstrates how HttpClient APIs can be used to perform form based logon. public class ClientFormLogin public static..
HTTP URL Address Encoding in Java http://stackoverflow.com/questions/724043/http-url-address-encoding-in-java the documentation of URL you find Note the URI class does perform escaping of its component fields in certain circumstances. The..
Update data in ListFragment as part of ViewPager http://stackoverflow.com/questions/7379165/update-data-in-listfragment-as-part-of-viewpager but others I got an IllegalStateException Can not perform this action after onSaveInstanceState. My second attempt involed.. improve this question OK I think I've found a way to perform request b in my own question so I'll share for others' benefit... in the viewpager. So if the position is known eg 0 I can perform in updateFragments HomeListFragment fragment HomeListFragment..
What is the difference between Serializable and Externalizable in Java? http://stackoverflow.com/questions/817853/what-is-the-difference-between-serializable-and-externalizable-in-java e.g. in client server RMI applications was a bit of a performance problem. To handle this situation the java.io.Externalizable.. java.io.Serializable but with custom written mechanisms to perform the marshalling and unmarshalling functions you need to implement.. . This gives you the means to get around the reflection performance bottleneck. In recent versions of Java 1.3 onwards certainly..
Efficiency of Java “Double Brace Initialization”? http://stackoverflow.com/questions/924285/efficiency-of-java-double-brace-initialization natured jousts about Java semantics Thanks everyone java performance initialization share improve this question Update Added.. this question Update Added an experiment to evaluate the performance of double brace initialization. Here's the problem when.. a simple program to write out a Java source file to perform 1000 initializations using the two methods Test 1 class Test1..
http://stackoverflow.com/questions/995514/https-connection-android yet none of the methods actually perform any work get a sample here . Good Luck share improve this answer..
how to display console output in java JTextarea one by one in a loop when button action is triggered http://stackoverflow.com/questions/14357418/how-to-display-console-output-in-java-jtextarea-one-by-one-in-a-loop-when-button but.addActionListener this Button action public void actionPerformed ActionEvent e final JButton source JButton e.getSource if.. frame.setVisible true public void actionPerformed ActionEvent evt if evt.getSource button tArea.setText if.. SwingWorker @Override protected Integer doInBackground Perform the required GUI update here. try for int i 0 i s.length..
Compiler optimization: Java bytecode http://stackoverflow.com/questions/1680024/compiler-optimization-java-bytecode Replace interfaces that have single implementations. Perform over 200 peephole optimizations like replacing ... 2 by .....
http://stackoverflow.com/questions/2748590/clickable-widgets-in-android int appWidgetIds final int N appWidgetIds.length Perform this loop procedure for each App Widget that belongs to this..
Problem in instance variable initialization http://stackoverflow.com/questions/3288601/problem-in-instance-variable-initialization Base private int val Base val lookup public int lookup Perform some lookup int num someLookup return 5 public int value return..
How to do a fractional power on BigDecimal in Java? http://stackoverflow.com/questions/3579779/how-to-do-a-fractional-power-on-bigdecimal-in-java ignore my private constants etc int signOf2 n2.signum try Perform X^ A B X^A X^B B remainder double dn1 n1.doubleValue Compare..
How do I debug GlassFish 3 using Eclipse Helios? http://stackoverflow.com/questions/4305881/how-do-i-debug-glassfish-3-using-eclipse-helios GlassFish Server Open Source Edition 3.0.1 build 22 INFO Perform lazy SSL initialization for the listener 'http listener 2' INFO..
Java ReentrantReadWriteLocks - how to safely acquire write lock? http://stackoverflow.com/questions/464784/java-reentrantreadwritelocks-how-to-safely-acquire-write-lock i lock.getReadLock .unlock lock.getWriteLock .lock try Perform modifications finally Downgrade by reacquiring read lock before..
Programming Contest Question: Counting Polyominos http://stackoverflow.com/questions/4650762/programming-contest-question-counting-polyominos x 0 x matrix.length x if matrix x y break bottom b Perform the real crop boolean cropped new boolean matrix.length l r..
ByteBuffer.allocate() vs. ByteBuffer.allocateDirect() http://stackoverflow.com/questions/5670862/bytebuffer-allocate-vs-bytebuffer-allocatedirect content of the nondirect buffer to the temporary buffer. Perform the low level I O operation using the temporary buffer. The..
Basic render 3D perspective projection onto 2D screen with camera (without opengl) http://stackoverflow.com/questions/8633034/basic-render-3d-perspective-projection-onto-2d-screen-with-camera-without-openg cover it it's dead simple . Thus for a point p we would Perform model transformation matrix p resulting in pm. Perform projection.. Perform model transformation matrix p resulting in pm. Perform projection matrix pm resulting in pp. Clipping pp against the.. resulting in pp. Clipping pp against the viewing volume. Perform viewport transformation matrix pp resulting is ps point on screen...
Highlighting Strings in JavaFX TextArea http://stackoverflow.com/questions/9128535/highlighting-strings-in-javafx-textarea fix each word in turn until the spell check is complete. Perform the prompting in a separate dialog or panel. The Jazzy demo..
App Engine datastore does not support operator OR http://stackoverflow.com/questions/930966/app-engine-datastore-does-not-support-operator-or engine gae datastore jdoql share improve this question Perform multiple queries. The Datastore like all other databases isn't..
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