execute()是 java.util.concurrent.Executor接口中唯一的方法,JDK注释中的描述是“在未来的某一时刻执行命令command”,即向线程池中提交任务,在未来某个时刻执行,提交的任务必须实现Runnable接口,该提交方式不能获取返回值。下面是对execute()方法内部原理的分析,分析前先简单介绍线程池有哪些状态,在一系列执行过程中涉...
2privatefinal AtomicInteger ctl=newAtomicInteger(ctlOf(RUNNING,0));3privatestaticfinal intCOUNT_BITS=Integer.SIZE-3;//表示workerCount的位数,29位。4privatestaticfinal intCAPACITY=(1<<COUNT_BITS)-1;//线程数的上限,(2^29)-1,大约5亿56// runState is stored in the high-order bits7privatestaticfi...
* methods of this class, then its interrupt status will be cleared and it * will receive an {@linkInterruptedException}. * * If this thread is blocked in an I/O operation upon an {@link* java.nio.channels.InterruptibleChannel InterruptibleChannel} * then the channel will be closed, the t...
1packagejava.lang;2importjava.lang.annotation.ElementType;3importjava.lang.annotation.Retention;4importjava.lang.annotation.RetentionPolicy;5importjava.lang.annotation.Target;67/**8* Annotation type used to mark methods that override a method declaration in a9* superclass. Compilers produce an error if...
public class ThreadTest { static class SharedData { private int count; // Getter and setter methods public synchronized void setCount(int count) { this.count = count; } public synchronized int getCount() { return count; } } public static void main(String[] args) throws InterruptedException ...
# 线程状态:in Object.wait(); # 起始栈地址:[0xae77d000],对象的内存地址,通过JVM内存查看工具,能够看出线程是在哪儿个对象上等待; 2. java.lang.Thread.State: TIMED_WAITING (on object monitor) 3. at java.lang.Object.wait(Native Method) ...
(通过命令:top -H -p pid,可以查看该进程的所有线程信息)# 线程状态:in Object.wait();# 起始栈地址:[0xae77d000],对象的内存地址,通过JVM内存查看工具,能够看出线程是在哪儿个对象上等待;2. java.lang.Thread.State:TIMED_WAITING(onobjectmonitor)3. at java.lang.Object.wait(Native Method)4. -...
Methods declared in class java.lang.Object equals,finalize,getClass,hashCode,notify,notifyAll,wait,wait,wait Field Detail MIN_PRIORITY public static final int MIN_PRIORITY The minimum priority that a thread can have. See Also: Constant Field Values ...
In addition, its checkPermission method is invoked with the RuntimePermission("enableContextClassLoaderOverride") permission when invoked directly or indirectly by the constructor of a subclass which overrides the getContextClassLoader or setContextClassLoader methods. The priority of the newly created ...
Methods 展开表 CheckAccess() Determines if the currently running thread has permission to modify this thread. (Inherited from Thread) Clone() Creates and returns a copy of this object. (Inherited from Object) CountStackFrames() Obsolete. Counts the number of stack frames in this thr...