Differences between Java multi-thread runnable and thread

The runnable interface is implemented in actual projects.

To use thread to implement multithreading, The extends Thread class is required. In Java, only one class can be extends, which limits the inheritance of classes.

Runnable is used to implement interfaces without affecting the original functions of the class, because a class in Java can implements many interfaces.

 

The thread does not use resource sharing, but runnable can. When using runnable to share resources, it mainly uses the following framework:

Class runtest implements runnable (){

Public void run (){

...........................

}

.....................

 

Public static void main (string [] ARGs ){

Runtest RT = new runtest ();

Thread T1 = new thread (RT );

Thread t2 = new thread (RT );

T1.start ();

T2.start ();

}

}

Because both threads use run in RT, resources are shared. If the Thread class is inherited, resources cannot be shared.