java Programming Glossary: takeWhy 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 Trains are heavy and have a lot of inertia. So they take forever to start up and slow down. Is there a better way You.. are complicated and have long pipelines. So they take forever to warm up and slow down . Is there a better way You.. after it switches direction. Quick visualization T branch taken N branch not taken data 0 1 2 3 4 ... 126 127 128 129 130 .....
Why is Java Vector class considered obsolete or deprecated? http://stackoverflow.com/questions/1386275/why-is-java-vector-class-considered-obsolete-or-deprecated you iterate over a Vector for instance you still need to take out a lock to avoid anyone else changing the collection at the.. in the iterating thread but also slower why take out a lock repeatedly when once will be enough Of course it..
How to discover memory usage of my application in Android http://stackoverflow.com/questions/2298208/how-to-discover-memory-usage-of-my-application-in-android on Android and it is even less clear. Thus if you were to take all of the physical RAM actually mapped in to each process and.. RAM. The Pss number is a metric the kernel computes that takes into account memory sharing basically each page of RAM in a.. more accurate one... but really this just leave the point take any memory info you get with a grain of salt often a very large..
Trusting all certificates using HttpClient over HTTPS http://stackoverflow.com/questions/2642777/trusting-all-certificates-using-httpclient-over-https won't be harmful of it to end user. Indeed the risk you take should be considered carefully including the effect of hacker's.. In some situation although it might be hard to take care of all certificates you'd better know the implicit drawbacks..
What is a raw type and why shouldn't we use it? http://stackoverflow.com/questions/2770321/what-is-a-raw-type-and-why-shouldnt-we-use-it illustrate the point consider the following method which takes a List Object and appends a new Object . void appendNewObject.. compilation error If you had declared appendNewObject to take a raw type List as parameter then this would compile and you'd..
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 to submit a HTML form programmatically don't forget to take the name value pairs of any input type hidden elements into..
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 @Override protected String doInBackground String... sUrl take CPU lock to prevent CPU from going off if the user presses the.. connection.connect expect HTTP 200 OK so we don't mistakenly save error report instead of the file if connection.getResponseCode..
Read/convert an InputStream to a String http://stackoverflow.com/questions/309424/read-convert-an-inputstream-to-a-string of the stream to a log file . What is the easiest way to take the InputStream and convert it to a String public String convertStreamToString..
When to use LinkedList<> over ArrayList<>? http://stackoverflow.com/questions/322715/when-to-use-linkedlist-over-arraylist forwards or backwards but finding a position in the list takes time proportional to the size of the list. ArrayList E on the.. ArrayLists don't have this overhead. However ArrayLists take up as much memory as is allocated for the capacity regardless..
How are Anonymous (inner) classes used in Java? http://stackoverflow.com/questions/355167/how-are-anonymous-inner-classes-used-in-java share improve this question By an anonymous class I take it you mean anonymous inner class . An anonymous inner class..
Generating random numbers in a range with Java http://stackoverflow.com/questions/363681/generating-random-numbers-in-a-range-with-java 5 is the smallest possible value the random number can take and 10 is the biggest. Any other number in between these numbers..
How do I import the javax.servlet API in my Eclipse project? http://stackoverflow.com/questions/4076601/how-do-i-import-the-javax-servlet-api-in-my-eclipse-project to the integrated server. Eclipse will then automatically take the servletcontainer's libraries in the build path. This way..
Migrating from JSF 1.2 to JSF 2.0 http://stackoverflow.com/questions/4441713/migrating-from-jsf-1-2-to-jsf-2-0 tabs windows. Component libraries Note that I don't take any 3rd party componant libraries like PrimeFaces RichFaces..
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 aware of deoptimization and recompilation effects. Do not take any code path for the first time in the timing phase because..
Implementing back/forward buttons in Swing http://stackoverflow.com/questions/5654926/implementing-back-forward-buttons-in-swing have Forward and Back Buttons. The Approach I'm trying to take is to implement methods that will push the current JPanel to..
http://stackoverflow.com/questions/5853879/swing-obtain-image-of-jframe . This is presently accomplished using the robot to take a screen shot specifying the coordinates and dimensions of the..
Java: maintaining aspect ratio of JPanel background image http://stackoverflow.com/questions/11959758/java-maintaining-aspect-ratio-of-jpanel-background-image fastest or highest quality approach but it is the easiest. Take a read through The Perils of Image.getScaledInstance for some..
Why do these two multiplication operations give different results? http://stackoverflow.com/questions/12758338/why-do-these-two-multiplication-operations-give-different-results variable it is truncated to fit into valid integer range. Take a look at the following print statement System.out.println 1000..
ejb lookup failing with NamingException http://stackoverflow.com/questions/1473939/ejb-lookup-failing-with-namingexception as a way you can obtain an EJB object nothing else. Take care of the following A session bean 䏭 remote home interface.. MyBean implements javax.ejb.SessionBean why create method Take a special look at EJB Home details above public void create..
Immutability of Strings in Java http://stackoverflow.com/questions/1552301/immutability-of-strings-in-java change what it points to but not that which it points at . Take this code for example String s1 Hello String s2 s1 s1 and s2..
what is the difference between 'super' and 'extends' in Java Generics [duplicate] http://stackoverflow.com/questions/1910892/what-is-the-difference-between-super-and-extends-in-java-generics be extends T if it's a consumer it has to be super T . Take a look at the Google Collections they know how to use it because..
Read a specific line from a text file http://stackoverflow.com/questions/2138390/read-a-specific-line-from-a-text-file This will be slightly more efficient due to the buffer. Take a look at Scanner.skip .. and attempt skipping whole lines with..
What is a Null Pointer Exception? http://stackoverflow.com/questions/218384/what-is-a-null-pointer-exception to declare a reference type something different happens. Take the following code Integer num num new Integer 10 The first..
http://stackoverflow.com/questions/2186931/java-pass-method-as-parameter Mac java interface share improve this question Take a look at the command pattern . NOTE code not tested but I believe..
Right way to implement equals contract http://stackoverflow.com/questions/3181339/right-way-to-implement-equals-contract hashCode and also toString getters and setters for you. Take benefit of it. In Eclipse rightclick code and peek the Source..
Take a screenshot using Selenium WebDriver with Java http://stackoverflow.com/questions/3422262/take-a-screenshot-using-selenium-webdriver-with-java a screenshot using Selenium WebDriver with Java Does anyone.. FirefoxDriver driver.get http www.google.com File scrFile TakesScreenshot driver .getScreenshotAs OutputType.FILE Now you can..
Executing another application from Java http://stackoverflow.com/questions/3468987/executing-another-application-from-java approach is quite troublesome as you'll find out shortly. Take a look at the Apache Commons Exec project. It abstracts you..
How to calculate “time ago” in Java? http://stackoverflow.com/questions/3859288/how-to-calculate-time-ago-in-java in Java java date time share improve this question Take a look at the PrettyTime library. share improve this answer..
How to parse XML using the SAX parser http://stackoverflow.com/questions/4827344/how-to-parse-xml-using-the-sax-parser the disadvantage which should be pretty obvious by now. Take a look at the else if statement in the startElement method...
Why is super.super.method(); not allowed in Java? http://stackoverflow.com/questions/586363/why-is-super-super-method-not-allowed-in-java void add Item item I don't care if it's red or not. Take that RedItems super.super.add item Now we could add whatever..
Aggregation versus Composition http://stackoverflow.com/questions/734891/aggregation-versus-composition between aggregation and composition depends on context. Take the car example mentioned in another answer yes it is true that..
Renaming openconnection() or cutting it up? http://stackoverflow.com/questions/7453364/renaming-openconnection-or-cutting-it-up with Java. java class url share improve this question Take this answer with a large bag of salt. This will work but you..
JAXB: How should I marshal complex nested data structures? http://stackoverflow.com/questions/818327/jaxb-how-should-i-marshal-complex-nested-data-structures main idea is inside the method xmlizeNestedStructure ... Take a look at the code public final class Adapters private Adapters..
String to Date in Different Format in Java http://stackoverflow.com/questions/882420/string-to-date-in-different-format-in-java do this java string date share improve this question Take a look at SimpleDateFormat . The code goes something like this..
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