Converting array to list in Java

Converting an array to a list in Java is a pretty common task—especially when you want the flexibility of a list (like dynamic resizing or using collection methods) instead of a fixed-size array. Java provides a few straightforward ways to do this.

 1. Using Arrays.asList()

This is the most popular method:

import java.util.Arrays;
import java.util.List;
String[] array = {"apple", "banana", "cherry"};
List list = Arrays.asList(array);

• Pros: Quick and easy.
  
• Cons: Returns a fixed-size list backed by the array—so you can’t add or remove elements.
  

 2. Creating a Mutable List

If you want to modify the list (add/remove items), wrap it in a new ArrayList:

  List modifiableList = new ArrayList<>(Arrays.asList(array));

 3. Using Java 8+ Streams

For more flexibility or if you're already using streams:

  List list = Arrays.stream(array).collect(Collectors.toList());

Especially useful for filtering or transforming elements as you convert.

 4. Java 9+ with List.of()

  List list = List.of(array);

Creates an immutable list (cannot be changed).

So depending on whether you want a mutable or immutable list, and what version of Java you’re using, you’ve got options. For most everyday use cases, new ArrayList<>(Arrays.asList(array)) is the safest bet!