runnable Questions

4

i 'm rotating image with runnable.i want to rotate image for example 4 th time and then pause/stop rotate.i wrote some function public void rotateImage(final View myView, final int size) { runna...
Aedes asked 24/10, 2014 at 10:19

3

A Java Thread's run() method is called by the JVM, on that thread, when the thread starts. To give a thread something to do, you can make a subclass of Thread and override its run() method, or (pre...
Housley asked 19/8, 2013 at 3:21

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I have a class which implements the callable interface. I want to schedule a task for the class using scheduleAtFixedRate method of ScheduledExecutorService interface. However scheduleAtFixedRate n...

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Let's say I have an application that utilizes the Executor framework as such Executors.newSingleThreadExecutor().submit(new Runnable(){ @Override public void run(){ // do stuff } } When I ru...
Overmatch asked 24/5, 2011 at 16:33

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I have a need for a "Runnable that accepts a parameter" although I know that such runnable doesn't really exist. This may point to fundamental flaw in the design of my app and/or a mental block in...
Fusty asked 2/5, 2011 at 3:9

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I am using a Runnable to automatically subtract 20 from a players cooldown every second, but I have no idea how to replace the value of a value as I iterate through it. How can I have it update the...
Lilla asked 12/6, 2012 at 8:59

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A method I am calling in run() in a class that implements Runnable) is designed to be throwing an exception. But the Java compiler won't let me do that and suggests that I surround it with try/cat...
Isopropanol asked 20/7, 2012 at 17:25

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I have extracted a jar file from an eclipse project but it runs too slow. It takes almost twenty minutes to complete and the eclipse project only takes some seconds. I exported runnable jar with li...
Roobbie asked 27/3, 2014 at 10:40

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From what time I've spent with threads in Java, I've found these two ways to write threads: With implements Runnable: public class MyRunnable implements Runnable { public void run() { //Code } }...
Mckinley asked 12/2, 2009 at 14:28

5

I try to play a sound from R.raw. inside a Thread/Runnable But I can't get this to work. new Runnable(){ public void run() { //this is giving me a NullPointerException, because getBaseContex...

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I have some code which sets a timer, but if a user sets the timer while it is in use I need to remove the runnable which runs the timer and start it again. But when no handler callback runnable exi...
Garpike asked 4/4, 2013 at 16:8

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Is there any simple solution to save data into database using JPA in a new thread? My Spring based web application allows user to manage scheduled tasks. On runtime he can create and start new ins...
Supporter asked 30/6, 2012 at 15:50

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I have a logging code which needs to be executed after all Threadss are executed. Thread t1 = new MyThread(); Thread t2 = new MyThread(); t1.run(); t2.run(); doLogging(); Is there any way to e...
Ochs asked 29/9, 2009 at 11:51

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What I have is an activity with a severer, and another activity with different information on it. However when I open the non-sever activity the sever closes. Is there a way that I can get this to ...
Anthropomorphic asked 19/6, 2012 at 13:46

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What is the difference between using the Runnable and Callable interfaces when designing a concurrent thread in Java, why would you choose one over the other?
Heracliteanism asked 26/9, 2008 at 19:0

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I am having a small issue, when i comment out the binding.setData(dataContainer); in onChanged while observing Livedata in my Activity, I am not able to update the UI, when I uncomment it, the UI i...
Epicalyx asked 7/5, 2018 at 11:48

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Seeing some stranger behavior in Java regarding functional interfaces with void return type. Can someone please explain why the declarations for task5 and task6 below compile? public class Test { ...
Oleum asked 11/3, 2021 at 17:50

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I have a function that needs to perfom two operations, one which finishes fast and one which takes a long time to run. I want to be able to delegate the long running operation to a thread and I don...
Erythroblast asked 20/4, 2010 at 16:8

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My question is related to this question, which already has an answer: yes, there is a happens-before relationship imposed between actions of the thread calling invokeLater/invokeAndWait and action...

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I want to use an anonymous class for Runnable. There are two ways, but I don't know if they do the same thing or not: Method one: using Runnable directly and then calling run(): new Runnable() { ...
Drugget asked 7/10, 2012 at 18:21

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I have question which puzzles me. Imagine I wanna do something in another thread, like fetching GPS/Location stuff, which as recommended in the SDK documents, must use a background thread. So h...

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Ok, I have the following code. public class MyProgressBar extends JPanel implements MyData, Serializable { /** * */ public static final int MAX = 10000; public static final int WIDTH = 400...
Roderick asked 3/5, 2012 at 18:52

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This is my code by now: public class discoverRunnable implements Runnable{ InetAddress address = null; boolean discovered; public discoverRunnable(InetAddress address){ this.address = address...
Erupt asked 12/11, 2015 at 15:12

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I am calling from a method: myHandler.postDelayed(mMyRunnableHide, 6000); which calls: public Runnable mMyRunnableHide = new Runnable() { public void run() { mTextDisplay.setText(""); Disp...
Dormant asked 30/4, 2011 at 20:3

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Why doesn't the first of the following examples work? run(R::new); method R.run is not called. run(new R()); method R.run is called. Both examples are compiled-able. public class ConstructorRe...
Brownedoff asked 7/1, 2019 at 10:15

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