How to Reverse Array in Java - Int and String Array Example

This Java tips is about, how to reverse array in Java, mostly primitive types e.g. int, long, double and String arrays. Despite of Java�s rich Collection API, use of array is quite common, but standard JDK doesn�t has great utility classes for Java. It�s difficult to convert between Java Collection e.g. List, Setto primitive arrays. Java�s array utility class java.util.Arrays, though offers some of critical functionalities like comparing arrays in Java and support to print arrays, It lacks lot of common features, such as combining two arrays and reverse primitive or object array. Thankfully, Apache commons lang, an open source library from Apache software foundation offers one interesting class ArrayUtils, which can be used in conjunction with java.util.Arrays class to play with both primitive and object array in Java. This API offers convenient overloaded method to reverse different kinds of array in Java e.g. int, double, float, log or Object arrays. On a similar note, you can also write your own utility method to reverse Array in Java, and this is even a good programming question. For production usage, I personally prefer tried and tested library methods instead of reinventing wheel. Apache commons lang fits the bill, as it offer other convenient API to complement JDK. In this Java tutorial, we will reverse int and String array in Java using ArrayUtils to show How to reverse primitive and object array in Java.

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