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java Programming Glossary: loopWhy 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 c 0 c arraySize c data c std rand 256 With this the next loop runs faster std sort data data arraySize Test clock_t start.. clock long long sum 0 for unsigned i 0 i 100000 i Primary loop for unsigned c 0 c arraySize c if data c 128 sum data c double.. 0 c arraySize c data c rnd.nextInt 256 With this the next loop runs faster Arrays.sort data Test long start System.nanoTime..
StringBuilder vs String concatenation in toString() in Java http://stackoverflow.com/questions/1532461/stringbuilder-vs-string-concatenation-in-tostring-in-java to builder At the point where you're concatenating in a loop that's usually when the compiler can't substitute StringBuilder..
Fastest way to determine if an integer's square root is an integer http://stackoverflow.com/questions/295579/fastest-way-to-determine-if-an-integers-square-root-is-an-integer t 1 t 1 r x r r & t 1 Repeat until t is 2^33 or so. Use a loop if you want. The idea is that at each iteration you add one.. roots. In my actual code I use the following modified loop int64 r t z r start x 3 & 1023 do z x r r if z 0 return true.. start value equivalent to ~10 iterations of the loop earlier exit of the loop and skipping some t values. For the..
Java Process with Input/Output Stream http://stackoverflow.com/questions/3643939/java-process-with-input-output-stream causing the child process to hang or vice versa. Next the loops of which you have two while line reader.readLine null System.out.println.. two lines of input to the process before reaching this loop the first of these two loops will hang if the process hasn't.. process before reaching this loop the first of these two loops will hang if the process hasn't exited after these two lines..
If profiler is not the answer, what other choices do we have? http://stackoverflow.com/questions/4387895/if-profiler-is-not-the-answer-what-other-choices-do-we-have is in I O except for user input or in GC or in a tight CPU loop or whatever. Sampling should read the function call stack so..
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 The rule of thumb is several tens of thousands of inner loop iterations. Rule 2 Always run with XX PrintCompilation verbose..
How does the Java for each loop work? http://stackoverflow.com/questions/85190/how-does-the-java-for-each-loop-work does the Java for each loop work List String someList new ArrayList String add monkey donkey.. System.out.println item What would the equivalent for loop look like without using the for each syntax java foreach syntactic.. item Note that if you need to use i.remove in your loop or access the actual iterator in some way you cannot use the..
How to download and save a file from Internet using Java? http://stackoverflow.com/questions/921262/how-to-download-and-save-a-file-from-internet-using-java is potentially much more efficient than a simple loop that reads from the source channel and writes to this channel...
Java rectangle collision detection confusion http://stackoverflow.com/questions/13825515/java-rectangle-collision-detection-confusion share improve this question Here is an example of a Game Loop Game Logic and collision detection via Rectangle2D#intersects.. start the game loop which will repaint the screen runGameLoop Starts a new thread and runs the game loop in it. public void.. thread and runs the game loop in it. public void runGameLoop Thread loop new Thread new Runnable @Override public void run..
Get all of the Classes in the Classpath http://stackoverflow.com/questions/3222638/get-all-of-the-classes-in-the-classpath directory and or to grab the filename. if file.isDirectory Loop through its listFiles recursively. else String name file.getName..
http://stackoverflow.com/questions/4181941/loop-counter-in-java-api counter in Java API All While going through some of the files..
What optimizations can I expect from Dalvik and the Android toolchain? http://stackoverflow.com/questions/4912695/what-optimizations-can-i-expect-from-dalvik-and-the-android-toolchain if such redundancy can be found in a basic block . Loop formation and optimization for simple counted loops ie no side..
http://stackoverflow.com/questions/5275174/embed-swf-file-to-my-jframe loop false boolean playOnStart true public enum Actions Loop Stop Play Defualt constructor public FlashPlayer Sets FlashPlayer.. flashPanel fmt.start revalidate if playOnStart stop setLoop loop Create a FlashPanel instance and add it to the frame public.. boolean isPlayOnStart return playOnStart public boolean isLoop return loop public void setPlayOnStart boolean dis playOnStart..
Playing MP3 using Java Sound API http://stackoverflow.com/questions/5667454/playing-mp3-using-java-sound-api the audioData. private ByteArrayInputStream inputStream Loop count set by the calling code. private int loopCount Internal.. true inputStream.reset start @Override public void setLoopPoints int start int end if start 0 start audioData.length 1.. end audioData.length throw new IllegalArgumentException Loop points ' start ' and ' end ' cannot be set for buffer of..
Remove Top-Level Container on Runtime http://stackoverflow.com/questions/6309407/remove-top-level-container-on-runtime private int top 20 private int left 20 private int maxLoop 0 public RemoveDialogOnRuntime setDefaultCloseOperation JFrame.EXIT_ON_CLOSE.. wins i .setVisible true if wins.length 1 wins null maxLoop if maxLoop 3 System.out.println Will Try Remove Dialog again.. true if wins.length 1 wins null maxLoop if maxLoop 3 System.out.println Will Try Remove Dialog again CycleNo...
JFreechart Loop through polar chart sectors http://stackoverflow.com/questions/6576911/jfreechart-loop-through-polar-chart-sectors Loop through polar chart sectors I have the following code to method..
http://stackoverflow.com/questions/739532/logarithm-of-a-bigdecimal tolerance BigDecimal.valueOf 5 .movePointLeft sp1 Loop until the approximations converge two successive approximations..
http://stackoverflow.com/questions/7763131/java-for-loop-syntax
How do you play a long AudioClip? http://stackoverflow.com/questions/9470148/how-do-you-play-a-long-audioclip the audioData. private ByteArrayInputStream inputStream Loop count set by the calling code. private int loopCount 1 Internal.. true inputStream.reset start @Override public void setLoopPoints int start int end if start 0 start audioData.length 1.. end audioData.length throw new IllegalArgumentException Loop points ' start ' and ' end ' cannot be set for buffer of..
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