Program to convert Array to List in Java
#java_array #array #list #java # Java collections example, #Java programming tutorial, #how to use Arrays.asList, #Java list example
If you’re working with Java, you’ve likely encountered arrays and lists as essential tools for storing and manipulating data. This article will explore how to convert an array to a list in Java, along with a clear explanation of arrays and lists, and why they’re so useful. By using this detailed guide, you’ll gain insights into leveraging these data structures effectively.
An array in Java is a container object that holds a fixed number of elements of the same type. Once created, the length of the array cannot be changed, making arrays a static data structure. Arrays are often used when the size of the data is known in advance. Here's an example:
int[] numbers = {10, 20, 30, 40, 50};
To learn more, check out the official Java Array Documentation.
A List in Java is part of the Collection Framework and represents an ordered collection (also known as a sequence). Unlike arrays, lists are dynamic, allowing the insertion, deletion, and retrieval of elements in a flexible manner. You can also search for elements based on their index position.
To dive deeper, refer to the official Java List Documentation.
Java makes it easy to convert an array to a list using the Arrays.asList()
method. Here’s a simple example:
import java.util.*;
public class StringArrayTest {
public static void main(String args[]) {
String[] words = {"ace", "boom", "crew", "dog", "eon"};
// Convert Array to List
List<String> wordList = Arrays.asList(words);
// Print elements of the List
for (String e : wordList) {
System.out.println(e);
}
}
}
words
is created.Arrays.asList()
method is used to convert the array into a list.add()
, remove()
, and contains()
for efficient data handling.
In this article, we’ve explored how to convert an array to a list in Java using the Arrays.asList()
method. Additionally, we’ve covered the fundamental differences between arrays and lists and their respective advantages.
By leveraging the power of lists, you can write more flexible and efficient Java programs.
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