util.Arrays vs reflect.Array in Java with Examples Last Updated : 21 Jan, 2022 Comments Improve Suggest changes Like Article Like Report Array class in java.lang.reflect package is a part of the Java Reflection. This class provides static methods to create and access Java arrays dynamically. It is a final class, which means it can’t be instantiated or changed. Only the methods of this class can be used by the class name itself. On the other hand, Arrays class in java.util package is a part of the Java Collection Framework. This class provides static methods to dynamically create and access Java arrays. It consists of only static methods and the methods of Object class. The methods of this class can be used by the class name itself. Let us directly discuss major differences via table as follows on basic of few factor as listed: Difference between Array and ArraysBasicArrayArraysPackage Existence in class hierrarchy The Array class exists in the java.lang.reflect packageThe Arrays class exists in java.util packageClass Hierrarchy java.lang.Object ↳ java.lang.reflect ↳ Class Arrayjava.lang.Object ↳ java.util ↳ Class ArraysImmutabilityThe Array class is immutable in natureArrays class is not immutable in nature. By immutable, it means that the class cannot be extended or inherited. The Array class is declared as final to achieve immutability.Class declarationpublic final class Array extends Objectpublic class Arrays extends ObjectUsageArray class provides static methods to dynamically create and access Java arrays. This Array class keeps the array to be type-safe.Arrays class contains various methods for manipulating arrays (such as sorting and searching) Implementation: Java // Java program to Illustrate Usage of Array class // vs Arrays Class // Importing both classes from resprective packages import java.lang.reflect.Array; import java.util.Arrays; // Main class public class GFG { // Main driver method public static void main(String[] args) { // Getting the size of the array int[] intArray = new int[5]; // Adding elements into the array // using setInt() method of Array class Array.setInt(intArray, 0, 10); // Printing the Array content // using util.Arrays class System.out.println(Arrays.toString(intArray)); } } Output: [10, 0, 0, 0, 0] Comment More infoAdvertise with us Next Article util.Arrays vs reflect.Array in Java with Examples R RishabhPrabhu Follow Improve Article Tags : Java Java - util package Java-Class and Object java-reflection-array Java-Array-Programs +1 More Practice Tags : JavaJava-Class and Object Similar Reads Arrays.toString() in Java with Examples The Arrays.toString() method belongs to the Arrays class in Java. 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