Converting a Java array to a queue

05 Oct 2023

In Java, the java.util.ArrayDeque class provides an implementation of the Queue interface. The ArrayDeque class can be used to convert a Java array to a queue. This can be useful when you need to perform operations like adding elements to the end of the queue or removing elements from the front of the queue. In this blog post, we’ll explore how to convert a Java array to a queue using the ArrayDeque class.

Prerequisites

To follow along with the examples in this blog post, you’ll need:

Basic knowledge of Java programming language
Java Development Kit (JDK) installed on your machine
Integrated Development Environment (IDE) such as IntelliJ IDEA or Eclipse

Converting a Java Array to a Queue

To convert a Java array to a queue, we can follow these steps:

Create an instance of the ArrayDeque class.
Iterate over the elements of the array and add each element to the queue using the add method.

Here’s an example that demonstrates the conversion of a Java array to a queue:

import java.util.ArrayDeque;
import java.util.Queue;

public class ArrayToQueue {

    public static void main(String[] args) {
        String[] array = {"apple", "banana", "orange"};

        Queue<String> queue = new ArrayDeque<>();

        for (String element : array) {
            queue.add(element);
        }

        System.out.println("The converted queue: " + queue);
    }
}

In this example, we have a Java array array containing three elements. We create an instance of the ArrayDeque class and assign it to the queue variable. Then, we iterate over the elements of the array using a for-each loop and add each element to the queue using the add method. Finally, we print the converted queue using the System.out.println statement.

When you run the above code, you will see the following output:

The converted queue: [apple, banana, orange]

The Java array has been successfully converted to a queue.

Conclusion

Converting a Java array to a queue is a common task in programming. By using the ArrayDeque class from the Java Collections Framework, you can easily convert an array to a queue and perform various queue operations on it.