5.数组排序

题目

import java.util.Arrays;
import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		sc.nextLine();
		Integer[] arr = new Integer[n];
		for(int i=0;i<n;i++)
			arr[i] = sc.nextInt();
		Arrays.sort(arr);
		for(int x:arr)
			System.out.print(x+" ");
		System.out.println();
		Arrays.sort(arr,(o1,o2)->o2-o1);
		for(int x:arr)
			System.out.print(x+" ");
		sc.close();
	}
}