![]() Where compareThem has to be added in MyType. Arrays.sort () The Arrays.sort () method sorts the array of objects or primitives. Sort an array in Java Ask Question Asked 11 years, 4 months ago Modified 1 year, 5 months ago Viewed 878k times 196 I'm trying to make a program that consists of an array of 10 integers which all has a random value, so far so good. In this tutorial, we'll draw a comparison between the sort () and parallelSort () methods. In JDK 8, creators enhanced the API to provide a new method: Arrays.parallelSort (). Using method references Arrays.sort(myTypes, MyType::compareThem) We've all used Arrays.sort () to sort an array of objects or primitives. But first, let’s look at the implementation details of sorting algorithms in JDK. Implement the Comparable interface in the class your objects are from and pass your array to the sort method which takes only one parameter.Įxample class Book implements Comparable You know, the class provides various methods for sorting elements of an array, as simple as: Arrays.sort (array) This tutorial shows various examples of sorting an array using such methods, especially using the Comparable and Comparator interfaces.Implement a Comparator and pass your array along with the comparator to the sort method which take it as second parameter.We'll still make use of Arrays.sort(), but in this example, it'll take in two parameters the array to be sorted and Collections.reverseOrder(). ![]() You have two ways to do that, both use the Arrays utility class How to Sort an Array in Descending Order in Java Using Collections.reverseOrder() To sort an array in descending order, we use the reverseOrder() which we can access from the Collections class.
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