Java Sorting Array Program

Java Program to Sort an Array

We will use the Arrays.sort() method to sort the array in ascending order. The Arrays.sort() method is a built-in method in Java that sorts the specified array of objects into ascending order. The sorting algorithm used by this method is a modified merge sort algorithm. We will also learn how to sort an array in descending order using the Arrays.sort() method by passing the Collections.reverseOrder() method as a second argument.

public class SortArray {
    public static void main(String[] args) {
        Integer[] numbers = {5, 2, 8, 1, 6, 3, 7, 4};
        System.out.println("Original Array: " + Arrays.toString(numbers));
        
        // Sort the array in ascending order
        Arrays.sort(numbers);
        System.out.println("Sorted Array (Ascending Order): " + Arrays.toString(numbers));

        // Sort the array in descending order using Arrays.sort() method
        Arrays.sort(numbers, Collections.reverseOrder());

        System.out.println("Sorted Array (Descending Order): " + Arrays.toString(numbers));
    }
}

Original Array: [5, 2, 8, 1, 6, 3, 7, 4]
Sorted Array (Ascending Order): [1, 2, 3, 4, 5, 6, 7, 8]
Sorted Array (Descending Order): [8, 7, 6, 5, 4, 3, 2, 1]