runnable – Page 3 – Tarik Billa

The difference between the Runnable and Callable interfaces in Java

September 12, 2022 by Tarik

See explanation here. The Callable interface is similar to Runnable, in that both are designed for classes whose instances are potentially executed by another thread. A Runnable, however, does not return a result and cannot throw a checked exception.

“implements Runnable” vs “extends Thread” in Java

August 26, 2022 by Tarik

Yes: implements Runnable is the preferred way to do it, IMO. You’re not really specialising the thread’s behaviour. You’re just giving it something to run. That means composition is the philosophically “purer” way to go. In practical terms, it means you can implement Runnable and extend from another class as well… and you can also … Read more