Enum Class Thread.State

All Implemented Interfaces:

Serializable, Comparable<Thread.State>, Constable

Enclosing class:

Thread

Since:

1.5

See Also:

Thread.getState()

• Nested Class Summary

  Nested classes/interfaces declared in class java.lang.Enum

  Enum.EnumDesc<E extends Enum<E>>

• Enum Constant Summary

  Enum Constants
  Enum Constant

  Description

  BLOCKED

  Thread state for a thread blocked waiting for a monitor lock.

  NEW

  Thread state for a thread which has not yet started.

  RUNNABLE

  Thread state for a runnable thread.

  TERMINATED

  Thread state for a terminated thread.

  TIMED_WAITING

  Thread state for a waiting thread with a specified waiting time.

  WAITING

  Thread state for a waiting thread.

• Method Summary

  All MethodsStatic MethodsConcrete Methods

  Modifier and Type

  Method

  Description

  static Thread.State

  valueOf​(String name)

  Returns the enum constant of this class with the specified name.

  static Thread.State[]

  values()

  Returns an array containing the constants of this enum class, in the order they are declared.

  Methods declared in class java.lang.Enum

  clone, compareTo, describeConstable, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

  Methods declared in class java.lang.Object

  getClass, notify, notifyAll, wait, wait, wait

• Enum Constant Details

  • NEW

    public static final Thread.State NEW
    Thread state for a thread which has not yet started.

  • RUNNABLE

    public static final Thread.State RUNNABLE
    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.

  • BLOCKED

    public static final Thread.State BLOCKED
    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 Object.wait.

  • WAITING

    public static final Thread.State WAITING
    Thread state for a waiting thread. A thread is in the waiting state due to calling one of the following methods:

    • Object.wait with no timeout
    • Thread.join with no timeout
    • LockSupport.park

    A thread in the waiting state is waiting for another thread to perform a particular action. For example, a thread that has called Object.wait() on an object is waiting for another thread to call Object.notify() or Object.notifyAll() on that object. A thread that has called Thread.join() is waiting for a specified thread to terminate.

  • TIMED_WAITING

    public static final Thread.State TIMED_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:

    • Thread.sleep
    • Object.wait with timeout
    • Thread.join with timeout
    • LockSupport.parkNanos
    • LockSupport.parkUntil

  • TERMINATED

    public static final Thread.State TERMINATED
    Thread state for a terminated thread. The thread has completed execution.

• Method Details

  • values

    public static Thread.State[] values()
    Returns an array containing the constants of this enum class, in the order they are declared.

    Returns:

    an array containing the constants of this enum class, in the order they are declared

  • valueOf

    public static Thread.State valueOf​(String name)
    Returns the enum constant of this class with the specified name. The string must match exactly an identifier used to declare an enum constant in this class. (Extraneous whitespace characters are not permitted.)

    Parameters:

    name - the name of the enum constant to be returned.

    Returns:

    the enum constant with the specified name

    Throws:

    IllegalArgumentException - if this enum class has no constant with the specified name

    NullPointerException - if the argument is null

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