What are the differences between a thread and a runnable in Java?

Can you explain the differences between a thread and a runnable in Java?

Sure! In Java, a thread is a lightweight process that can run concurrently with other threads. A Runnable, on the other hand, is an interface that defines a task to be executed by a thread.

So, can I use a Runnable to create a thread?

Yes, you can! You create a thread by passing a Runnable instance to the Thread constructor. This allows you to define the task that the thread will execute.

What are the advantages of using Runnable over extending Thread?

Using Runnable allows for greater flexibility since you can implement multiple interfaces and avoid the limitations of single inheritance. It also promotes better separation of concerns.

Are there any performance differences between using Thread and Runnable?

Generally, there are no significant performance differences. The choice between them often depends on design preferences rather than performance.