Java Queue Interface
The Queue interface in Java is used to hold elements before processing. It follows the FIFO (First In, First Out) principle and is useful for tasks like scheduling, buffering, and asynchronous processing.
Common Implementations
- LinkedList
- PriorityQueue
- ArrayDeque
Basic Example
Queue<String> queue = new LinkedList<>();
queue.add("A");
queue.add("B");
queue.add("C");
System.out.println(queue.poll()); // A