[Java] Arrays.sort() 오름차순 내림차순

배열을 오름차순 하고 싶으면,
Arrays.sort(arr);

배열을 내림차순 하고 싶으면,
Arrays.sort(arr, Collections.reverseOrder());

package DM20220402;

import java.util.Arrays;
import java.util.Collections;

public class Sort {
    public static void main(String[] args) {
        String arr[] = {"apple","orange","banana","pear","peach","melon"};

        Arrays.sort(arr);
        for (String i : arr) {
            System.out.print("["+i+"]");
        }
        System.out.println();
        Arrays.sort(arr, Collections.reverseOrder());
        for (String i : arr) {
            System.out.print("["+i+"]");
        }
    }
}

(결과)

[apple][banana][melon][orange][peach][pear]
[pear][peach][orange][melon][banana][apple]