This article has been transferred from the post of Brian Goetz Master in IBM's Developerworks:Chinese Address: http://www.ibm.com/developerworks/cn/java/j-jtp05236.htmlEnglish Address: http://www.ibm.com/developerworks/java/library/j-jtp05236/index.htmlMany Java™ language methods, such as Thread.sleep() and Object.wait() , can be thrown InterruptedException . You cannot ignore this exception because it is a check exception (checked exception). But wha
When a method is declared that might throw a interruptedexception exception, the method is described as a method that may take a little time, but can be canceled.The representative methods of throwing interruptedexception are:1. The wait method for the Java.lang.Object class2. The sleep method of the Java.lang.Thread class3. Join method for the Java.lang.Thread classThe representative methods of throwing
Snap to it and then how to deal with it?Many Java™ language methods, such as Thread.sleep() and Object.wait() , can be thrown InterruptedException . You cannot ignore this exception because it is a check exception (checked exception). But what should be done about it? In Java theory and practice this month, the concurrency expert Brian Goetz will explain Interruptedexception's meaning, why it throws interruptedexc
Many Java™ language methods, such as Thread.sleep() and Object.wait() , can be thrown InterruptedException . You cannot ignore this exception because it is a check exception (checked exception). But what should be done about it? In Java theory and practice this month, the concurrency expert Brian Goetz will explain Interruptedexception's meaning, why it throws interruptedexception, and what to do when it ca
When testing the runnable, Thread.Sleep (100) was used in run and the code is as follows: while (true) { Thread.Sleep (+); if (tickets>0) System.out.println ("Thread name is" +thread.currentthread (). GetName () + "left =" +tickets--); }But the following question has arisenUnhandled Exception type InterruptedexceptionAt Test.run (thread123.java:51)At Java.lang.Thread.run (thread.java:619)Found a very good article, an
Objective
A common treatment for interruptedexception is to "Swallow (swallow)" It--capture it, then do nothing (or record it, but it's not much better)--as in Listing 4 later. Unfortunately, this approach ignores the fact that interruptions can occur during this period, and interruptions can cause applications to lose the ability to cancel activities or shutdowns in a timely manner.
Blocking method
When a method throws a
First, put a overstack on the answer:Understand:(1) throws Interruptedexception is part of your method declaration and the return value of the method you call.(2) When your method calls another method and throws a Interruptexception exception, you should think: is interruptexception a meaningful result for your method? If it is, Then your method can make an exception declaration and propagate the exception up. For example: Your method needs to wait fo
I recently learned multithreading and often used thread. sleep (long milltime) method also knows that it will throw an exception, but it is not very clear about what exceptions it throws (the disadvantage of Automatic Generation Using eclipse ), today, I specially studied the exception interruptedexception thrown by it, which is summarized as follows:
Interrupted indicates that the thread is interrupted. The exception is generated when the current th
In the Friday and the weekend, work to sneak in, looking at the Java cocurrent also by the way the Thread.Interrupt and Java 5 after the implementation of the Locksupport.
Before introducing, let's throw a few questions.
The relationship between Thread.Interrupt () method and Interruptedexception anomaly? is the interruptedexception exception triggered by the interrupt trigger?
Thread.Interrupt () What stat
thread mythread.
Interrupts and terminations of threads
One, thread Interrupt: Interrupt ()the effect of interrupt () is to interrupt this thread.This thread interrupts itself to be allowed, and when other threads call this thread's interrupt () method, the permissions are checked by CheckAccess (). This may throw a SecurityException exception.If this thread is in a blocking state: The call thread's Wait (), the Waiting (long), or (long, int) will let it enter the standby (blocking) state, or
Background
Because using the Stop method to stop a thread from being very violent can cause a series of problems, a gentle approach is proposed: Ask the other one not to execute, which is the interrupt mode.
There is also the scenario of writing a program that requires a pause for a period of time, and then calling Thread.Sleep (), but the compiler or IDE has reported that it did not process the checked interruptedexception. For
In the previous section, "Threading interrupts," we explained how to break an executing thread and what we had to do with thread in order to get disconnected. In general, we can use the interrupt mechanism described in the previous section. However, if the thread implements a complex algorithm that is assigned to multiple methods, or if there is a recursive call in the method invocation, we should use a better way to control the interruption of the thread. To do this, Java provides a
1. Interruptedexception Exception Overview
When a method declares that a interruptedexception exception might be thrown, it is a method that may take a little time, but can be canceled.
The interruptedexception of the parabolic method are:
1. Java.lang.Object type of Wait method
2. Sleep method of Java.lang.Thread class
3. Join method of Java.lang.Thread class
will be blocked, not be able to acquire the lock, only if the total counter is 0 o'clock, all blocked threads are released at the same time.
You can see that both semaphore and Countdownlatch have a shared total, which is achieved through state.2. Examples of use of semaphore and Countdownlatch
Before we analyze the principles of semaphore and countdownlatch in detail, let's take a look at how they are used, so that we can understand their principles later. Know what he is first? And then ask w
lock, only if the total counter is 0 o'clock, all blocked threads are released at the same time.You can see that both semaphore and Countdownlatch have a shared total, which is achieved through state.2. Examples of use of semaphore and CountdownlatchBefore we analyze the principles of semaphore and countdownlatch in detail, let's take a look at how they are used, so that we can understand their principles later. Know what he is first? And then ask why? The use of semaphore and Countdownlatch is
lock, only if the total counter is 0 o'clock, all blocked threads are released at the same time.
You can see that both semaphore and Countdownlatch have a shared total, which is achieved through state.2. Examples of use of semaphore and Countdownlatch
Before we analyze the principles of semaphore and countdownlatch in detail, let's take a look at how they are used, so that we can understand their principles later. Know what he is first? And then ask why? The use of semaphore and Countdownlatch
;} @Overridepublic void Run () {while (true) {request Request;try {request = _channel.takerequest (); Request.execute ();}catch (Interruptedexception e) {//TODO auto-generated catch Blocke.printstacktrace ();}}} }
The Channel class integrates the thread pool and task pool, provides the Startworkers method externally, calls the method to start all worker threads, and then adds the task to the task pool through the Putrequest method, and the
1. Introduction
When we click on the cancellation button of an antivirus software to stop the virus, when we typed the Quit command at the console to end a background service ... Requires a thread to cancel a task that another thread is performing. Java does not provide a safe and straightforward way to stop a thread, but Java provides an interrupt mechanism.
If you do not have a comprehensive understanding of Java interrupts, you may mistakenly assume that the interrupted thread will immediat
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