The java.util.PriorityQueue.offer() method is used to insert a particular element into the Priority Queue. It acts similar to the
add() method of Priority Queue.
Syntax:
Priority_Queue.offer(Object element)
Parameters: The parameter
element is of the type PriorityQueue and refers to the element to be inserted into the Queue.
Return Value: The method returns True if the value is successfully inserted into the queue.
Exceptions: The method can throw two types of exceptions:
- NullPointerException: If the element to be inserted is NULL.
- ClassCastException: If an element to be inserted is of a different type that cannot be compared to the existing elements of the Queue.
Below programs illustrate the java.util.PriorityQueue.offer() method
Program 1:
Output:
Initial PriorityQueue: [4, Geeks, To, Welcome, Geeks]
Priority queue after Insertion: [4, Class, Priority, Geeks, Geeks, To, The, Welcome]
Program 2:
Output:
Initial PriorityQueue: [5, 10, 30, 20, 15]
Priority queue after Insertion: [5, 10, 30, 20, 15, 100, 120, 150]
