Runnable Interface and its methods

Runnable Interface

• Runnable Interface consists only method. i.e. run()
• Synatx: public interface Runnable

• Use:
• 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. 

• Example:
  

Method

• run:
• Syntax: public void run()
• Use: 
  • If this thread was constructed using a separate Runnable run object, then that Runnable object's run method is called; otherwise, this method does nothing and returns.
  • Subclasses of Thread should override this method.
• Example: new Thread(object1).run();