BlockingDeque peek() method in Java with examples
The peek() method of BlockingDeque returns the front element in the Deque container. It returns null if the container is empty.
public E peek()
Parameters: This method does not accept any parameters.
Returns: This method returns front element in the Deque container if the container is not empty. It returns false if the container is empty.
Note: The peek() method of BlockingDeque has been inherited from the LinkedBlockingDeque class in Java.
Below programs illustrate peek() method of BlockingDeque:
Linked Blocking Deque: [7855642, 35658786, 5278367, 74381793] Front element in Deque: 7855642
Blocking Deque: [7855642, 35658786, 5278367, 74381793] Front element in Deque: null
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