thread-safety

问题 I am reading Java Concurrency in Practice and kind of confused with the thread confinement concept. The book says that When an object is confined to a thread, such usage is automatically thread-safe even if the confined object itself is not So when an object is confined to a thread, no other thread can have access to it? Is that what it means to be confined to a thread? How does one keep an object confined to a thread? Edit: But what if I still want to share the object with another thread?

问题 This question already has answers here : Why does the lock object have to be static? (3 answers) Closed 2 years ago . Raleted to: Lock in static methods lock Statement please consider this code: public static class SomeClass { public static void Method1(string key, int item) { //Some Work } public static DataTable Method2() { //Some Work } .... If I want to use this class in Asp.Net application from performance point of view does it need separate lock object for every methods like this:

问题 This question already has answers here : Why does the lock object have to be static? (3 answers) Closed 2 years ago . Raleted to: Lock in static methods lock Statement please consider this code: public static class SomeClass { public static void Method1(string key, int item) { //Some Work } public static DataTable Method2() { //Some Work } .... If I want to use this class in Asp.Net application from performance point of view does it need separate lock object for every methods like this:

问题 It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center. Closed 7 years ago . I have many threads in my application, how do I stop only one thread from them? If I use Thread.Sleep() it stops the whole application, I just want to stop a single thread. How do I do that? I am using c#. 回答1:

问题 I am trying to completely disable illegal crossthreads checking with CheckForIllegalCrossThreadCalls = False I ended up looking for this after i realized that i wasn't able to have multiple tabs in a TabControl with multiple WebBrowser controls and changing the GUI -the WebBrowser control actually- in all tabs at the same time. The problem is that i need CheckForIllegalCrossThreadCalls to be completely disabled but it seems that i get a cross-thread error even if i put it in my code. Is there

问题 i read thread safety for static variables and i understand it and i agree with it but In book java se 7 programmer exam 804 can some one explain to me public void run() { synchronized(SharedCounter.class) { SharedCounter.count++; } } However, this code is inefficient since it acquires and releases the lock every time just to increment the value of count. can someone explain to me the above quote 回答1: The code is not particularly inefficient. It could be slightly more efficient. The main

问题 i read thread safety for static variables and i understand it and i agree with it but In book java se 7 programmer exam 804 can some one explain to me public void run() { synchronized(SharedCounter.class) { SharedCounter.count++; } } However, this code is inefficient since it acquires and releases the lock every time just to increment the value of count. can someone explain to me the above quote 回答1: The code is not particularly inefficient. It could be slightly more efficient. The main

问题 Im working on a socket program in Java. Im running a GUI with a socket server in the background. The socket server is running a thread that checks for socket messages every 10ms. Both of them runs fine together but as soon as I try to open my File dialog in the gui , the gui crashes, but the server keeps on running. Im thinking that I run the server (or the server thread ) in a wrong way. The file dialog works fine if I skip the socket . What could be the problem, could it be that Im running

问题 I have an ASP.NET application, which uses a 'service reference' to a 3rd-party/offsite payment processor. The sample code which I downloaded from the payment processor includes the following: public class SoapAPIUtilities{ private static CustomerProfileWS.Service service = null; public static CustomerProfileWS.Service Service{ get{ if(service == null){ service = new CustomerProfileWS.Service(); } return service; } } } I generate CustomerProfileWS.Service automatically using Visual Web

问题 Closed . This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed 3 years ago . In the final minutes of a Java lesson about threads, our professor suggested us to pay specific attention when developing complex Swing-based applications, since Swing is not thread-safe. Is there any specific reason behind this? Swing is not thread safe due to a design decision,