How has ArrayList changed in recent Java versions?

ArrayList has seen improvements and changes in recent Java versions that enhance performance, memory management, and ease of use. Notably, Java 8 introduced significant enhancements with the addition of streams that allow for more functional programming aspects to be implemented using ArrayLists. Java 9 brought in new methods for ArrayList, such as the copyOf() static method that handles creating unmodifiable lists, enhancing code safety and performance. Java 11 and later versions have continued this trend by offering more streamlined methods and performance optimizations.

// Example of using Java 11's copyOf method import java.util.ArrayList; import java.util.List; public class ArrayListExample { public static void main(String[] args) { List originalList = new ArrayList<>(); originalList.add("Java"); originalList.add("Python"); originalList.add("JavaScript"); // Create an unmodifiable copy of the original list List unmodifiableList = List.copyOf(originalList); System.out.println(unmodifiableList); // Output: [Java, Python, JavaScript] } }

ArrayList Java updates Java performance functional programming Java 8 Java 9 Java 11 unmodifiable list.

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