算法基础-打印逆序数字

package day2;import java.util.Scanner;public class D打印逆序数字 {private static int fun(int n){int a[] = new int[20];int i = 0;while(n!=0){a[i++] = n%10;n = n/10;}for(int j=0;j<i;j++){System.out.print(a[j]);}return 0;}public static void main(String[] args) {Scanner in = new Scanner(System.in);int n = in.nextInt();fun(n);}
}