Java program to retrieve an element from the head of the queue without removing it
belongs to collection: Java Queue Interface Programs
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belongs to collection: Java Queue Interface Programs
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In this program, we will create a queue using the Queue interface with the help of Linked List collection and store elements in a FIFO (First In First Out) manner. Then we will use the element() and peek() method. Both methods are used to retrieve an element from the head of the queue without removing it.
Program/Source Code:
The source code to retrieve an element from the head of the queue without removing it is given below. The given program is compiled and executed successfully.
Output:
Explanation:
In the above program, we imported the "java.util.LinkedList" and "java.util.Queue" packages to use the Queue Interface and LinkedList collection respectively. Here, we created a class Main. The Main class contains a main() method. The main() method is the entry point for the program.
In the main() method, we created a queue using the LinkedList collection and added items to it. Then we used element(), peek() methods to access the head element from the queue and printed the result.