阿里巴巴做网站接单几率,网页设计免费模板代码下载,广州做外贸网站公司,网站建设的价值文章目录 在Java中#xff0c;线程有以下六种状态#xff1a;
NEW#xff1a;新建状态#xff0c;表示线程对象已经被创建但还未启动。RUNNABLE#xff1a;可运行状态#xff0c;表示线程处于就绪状态#xff0c;等待系统分配CPU资源执行。BLOCKED#xff1a;阻塞状态… 文章目录 在Java中线程有以下六种状态
NEW新建状态表示线程对象已经被创建但还未启动。RUNNABLE可运行状态表示线程处于就绪状态等待系统分配CPU资源执行。BLOCKED阻塞状态表示线程被挂起暂时无法执行可能是在等待某个资源如I/O操作、获取锁的过程中。WAITING等待状态表示线程正在等待另一个线程执行特定操作。TIMED_WAITING计时等待状态表示线程在等待特定时间内执行某个操作。TERMINATED终止状态表示线程已经执行完任务或者因异常而结束。
这些状态构成了线程的生命周期在不同的状态间切换线程会执行不同的行为和任务。理解线程的状态对于编写多线程程序非常重要可以帮助你控制线程的行为和逻辑。
在 java.lang.Thread.State 这个枚举中给出了六种线程状态:
public enum State {/*** Thread state for a thread which has not yet started.*/NEW,/*** Thread state for a runnable thread. A thread in the runnable* state is executing in the Java virtual machine but it may* be waiting for other resources from the operating system* such as processor.*/RUNNABLE,/*** Thread state for a thread blocked waiting for a monitor lock.* A thread in the blocked state is waiting for a monitor lock* to enter a synchronized block/method or* reenter a synchronized block/method after calling* {link Object#wait() Object.wait}.*/BLOCKED,/*** Thread state for a waiting thread.* A thread is in the waiting state due to calling one of the* following methods:* ul* li{link Object#wait() Object.wait} with no timeout/li* li{link #join() Thread.join} with no timeout/li* li{link LockSupport#park() LockSupport.park}/li* /ul** pA thread in the waiting state is waiting for another thread to* perform a particular action.** For example, a thread that has called ttObject.wait()/tt* on an object is waiting for another thread to call* ttObject.notify()/tt or ttObject.notifyAll()/tt on* that object. A thread that has called ttThread.join()/tt* is waiting for a specified thread to terminate.*/WAITING,/*** Thread state for a waiting thread with a specified waiting time.* A thread is in the timed waiting state due to calling one of* the following methods with a specified positive waiting time:* ul* li{link #sleep Thread.sleep}/li* li{link Object#wait(long) Object.wait} with timeout/li* li{link #join(long) Thread.join} with timeout/li* li{link LockSupport#parkNanos LockSupport.parkNanos}/li* li{link LockSupport#parkUntil LockSupport.parkUntil}/li* /ul*/TIMED_WAITING,/*** Thread state for a terminated thread.* The thread has completed execution.*/TERMINATED;}这里先列出各个线程状态发生的条件下面将会对每种状态进行详细解析 注意:6种状态是不包含运行状态的.
