What is the purpose of using Arrays.asList() in Java?

0179

The purpose of using Arrays.asList() in Java is to convert an array into a fixed-size list. This method allows you to create a List from an array without needing to manually traverse the array. It takes the elements of the array as parameters and returns a list that reflects the contents of the array.

Here’s a simple example:

import java.util.Arrays;
import java.util.List;

public class ListInitializationDemo {
    public static void main(String[] args) {
        List<String> colorsList = Arrays.asList("red", "blue", "green");
        System.out.print("Colors List : " + colorsList); // Output: [red, blue, green]
    }
}

Keep in mind that the list returned by Arrays.asList() is fixed-size, meaning you cannot add or remove elements from it; attempting to do so will throw an UnsupportedOperationException.

0 Comments

no data
Be the first to share your comment!