yaclty/Java-Interview-Guide
1
0
Fork 0
mirror of https://github.com/Snailclimb/JavaGuide synced 2025-06-16 18:10:13 +08:00
Code Issues Projects Releases Wiki Activity

Update JavaConcurrencyBasicsCommonInterviewQuestionsSummary.md

Browse Source
This commit is contained in:
shuang.kou 2020-05-09 09:10:46 +08:00
parent f0a463b24a
commit 84fa469dad
1 changed files with 2 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
docs/java/Multithread/JavaConcurrencyBasicsCommonInterviewQuestionsSummary.md
View File

@ -143,6 +143,8 @@ Java 线程在运行的生命周期中的指定时刻只可能处于下面 6 种
![Java 线程状态变迁 ](https://my-blog-to-use.oss-cn-beijing.aliyuncs.com/19-1-29/Java+%E7%BA%BF%E7%A8%8B%E7%8A%B6%E6%80%81%E5%8F%98%E8%BF%81.png)
> 订正(来自[issue736](https://github.com/Snailclimb/JavaGuide/issues/736))：原图中 wait到 runnable状态的转换中，`join`实际上是`Thread`类的方法，但这里写成了`Object`。
由上图可以看出：线程创建之后它将处于 **NEW（新建）** 状态，调用 `start()` 方法后开始运行，线程这时候处于 **READY（可运行）** 状态。可运行状态的线程获得了 CPU 时间片（timeslice）后就处于 **RUNNING（运行）** 状态。
> 操作系统隐藏 Java 虚拟机（JVM）中的 RUNNABLE 和 RUNNING 状态，它只能看到 RUNNABLE 状态（图源：[HowToDoInJava](https://howtodoinjava.com/ "HowToDoInJava")：[Java Thread Life Cycle and Thread States](https://howtodoinjava.com/java/multi-threading/java-thread-life-cycle-and-thread-states/ "Java Thread Life Cycle and Thread States")），所以 Java 系统一般将这两个状态统称为 **RUNNABLE（运行中）** 状态 。