Java线程的6种状态

一: Java的线程一共有6种状态，这是来自java官方源代码里面定义的，是最权威的。

1.       NEW
2.       RUNNABLE
3.       BLOCKED
4.       WAITING
5.       TIMED_WAITING
6.       TERMINATED

二: 如何查看源码: 输入以下代码，在IntelliJ Idea中按快捷键ctrl+B

Thread.State

三: A thread state.

• {@link #NEW}
  A thread that has not yet started is in this state.
• {@link #RUNNABLE}
  A thread executing in the Java virtual machine is in this state.
• {@link #BLOCKED}
  A thread that is blocked waiting for a monitor lock is in this state.
• {@link #WAITING}
  A thread that is waiting indefinitely for another thread to perform a particular action is in this state.
• {@link #TIMED_WAITING}
  A thread that is waiting for another thread to perform an action for up to a specified waiting time is in this state.
• {@link #TERMINATED}
  A thread that has exited is in this state.

  A thread can be in one of the following states: