Java AbstractQueue.clear() is a method in the Java AbstractQueue class that removes all elements from the queue. It is commonly used to reset a queue to an empty state, useful in scenarios where the queue needs to be reused without retaining any of its previous elements. Introduced in Java 2004 with Java 5, clear() is important for efficiently managing memory and data in queue-based applications.

https://docs.oracle.com/javase/8/docs/api/java/util/AbstractQueue.html