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  • Why is System.arraycopy native in Java?

    - by James B
    I was surprised to see in the Java source that System.arraycopy is a native method. Of course the reason is because it's faster. But what native tricks is the code able to employ that make it faster? Why not just loop over the original array and copy each pointer to the new array - surely this isn't that slow and cumbersome? Thanks, -James

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  • Invoking powershell from Java

    - by Hannes de Jager
    Anyone know of a good library to invoke powershell scripts from within Java? I'm currently spawning a seperate process (powershell.exe) and then parse the output, but it would really be nice if I can leverage Powershell's 'power' by getting objects back from a powershell call. Edit: Otherwise, anyone else doing such interop? What method do you use?

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  • Smartfoxserver java extension

    - by Daniel
    Hello, I'v created a java extension that handles login requests using smartfoxserver for my game. The following is inside the internal event: View Here: http://mfpurl.net/index.php/view/8e43b130 But its complaining invalid login request?

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  • java progress bar while applet loads

    - by Dan
    OK so, let's say I have a Java applet that takes a while to load (~5 secs). It's getting the mysql-connector.jar and it's loading. Well.. instead of the gray box with the coffee logo... can I make it have a simple progress bar with the percent? Thanks.

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  • Java Speech recognition api

    - by jaymin
    HI, i am currently developing an android application where i am required to implement speech recognition...could u suggest a link where i could find a java speech recognition API...? Thanks

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  • Java Shoutcast Query

    - by John
    Hi there, I have a Java IRC bot which i would like to query a shoutcast server and return basic information (song playing etc). Can someone guide me in the right direction? Thank you.

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  • "using" keyword in java

    - by DrDro
    In Java is there an equivalent to the C# "using" statement allowing to define a scope for an object: using (AwesomeClass hooray = new AwesomeClass) { // Great code } This has probably allready been asked but the keywords make it difficult to find a relevant question.

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  • Java wysiwyg HTML Editor

    - by Kyle
    Hello, I'm working on a project and need a simple free java HTML wysiwyg editor can anyone point me in the right direction?. It only has a small space to fit into, so something fairly simple would be best. Thanks for the help!

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  • Simple popup java form with at least two fields

    - by nunos
    This is, I suppose, a very simple question for any Java programmer. My question is as simple as this: When the user clicks a button, I want to show a popup form that should have at least two JTextFields and two JLabels, so using JOptionPane.showInputDialog is not a possibility. Thanks.

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  • How many ways a java Program can end ?

    - by Frank
    I know use System.exit(0) can end a java program, for instance, if I have a JFrame window, it will close and end the program, but I wonder how many other ways, can it be closed and the program be ended ? Including when an error occurs, will the program be shut down and the JFrame be closed ?

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  • Object slicing in Java.

    - by ferrari fan
    Can you take a subclass object and somehow convert it to an object of the same type as the parent class and at the same time slicing all the fields that are not part of the parent class? I know you can do this in C++, but I have no idea how to do it in Java.

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  • Profiling short-lived Java applications

    - by ejel
    Is there any Java profiler that allows profiling short-lived applications? The profilers I found so far seem to work with applications that keep running until user termination. However, I want to profile applications that work like command-line utilities, it runs and exits immediately. Tools like visualvm or NetBeans Profiler do not even recognize that the application was ran. I am looking for something similar to Python's cProfile, in that the profiler result is returned when the application exits.

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  • Java - when to use notify or notifyAll?

    - by mdma
    Why does java.lang.Object have two notify methods - notify and notifyAll? It seems that notifyAll does at least everything notify does, so why not just use notifyAll all the time? If notifyAll is used instead of notify, is the program still correct, and vice versa? What influences the choice between these two methods?

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