java.lang Runnable

java.lang
Runnable

Declaration
public interface Runnable
All Known Implementing Classes: Thread
Description
The Runnable interface should be implemented by any class whose instances are intended to be executed by a
thread. The class must define a method of no arguments called run.
This interface is designed to provide a common protocol for objects that wish to execute code while they are
active. For example, Runnable is implemented by class Thread. Being active simply means that a thread has
been started and has not yet been stopped.
In addition, Runnable provides the means for a class to be active while not subclassing Thread. A class that
implements Runnable can run without subclassing Thread by instantiating a Thread instance and passing
itself in as the target. In most cases, the Runnable interface should be used if you are only planning to
override the run() method and no other Thread methods. This is important because classes should not be
subclassed unless the programmer intends on modifying or enhancing the fundamental behavior of the class.
Since: JDK1.0, CLDC 1.0


Methods
void run()


Methods
run()
Declaration:
public void run()
Description:
When an object implementing interface Runnable is used to create a thread, starting the thread causes the
object’s run method to be called in that separately executing thread.
The general contract of the method run is that it may take any action whatsoever.
See Also: Thread.run()