ArrayDeque offer() Method in Java
The Java.util.ArrayDeque.offer(Object element) method in Java is used to add a specific element at the end of the Deque. The function is similar to the offerLast() method of ArrayDeque in Java.
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Parameters: The parameter element is of the type ArrayDeque and refers to the element to be added at the end of the Deque.
Return Value: The function returns True if the element is successfully added into the deque else it returns false.
Exceptions: The method throws NullPointerException if the passed parameter is NULL.
Below programs illustrate the Java.util.ArrayDeque.offer() method:
Program 1: Adding String elements into the Deque.
Initial Deque: [Welcome, To, Geeks, 4, Geeks] Final Deque: [Welcome, To, Geeks, 4, Geeks, Hello, World]
Program 2: Adding Integer elements into the Deque.
Initial Deque: [10, 15, 30, 20, 5] Final Deque: [10, 15, 30, 20, 5, 1658, 2458]