Java program to check whether a queue is empty or not
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 2 queues 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 check whether queues are empty or not using the isEmpty() method.
Program/Source Code:
The source code to check whether a queue is empty or not 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 2 queues using LinkedList collection and added items to it. Then we checked whether queues are empty or not using the isEmpty() method and printed the appropriate message.