//徐召阳20163419信1605-3importjava.util.ArrayList;importjava.util.Scanner;publicclassZhengshu{publicstaticvoidmain(String[]args){System.out.print("请输入要计算的N");Scanne...

importjava.util.Scanner;//给一个不多于5位的正整数，要求：一、求它是几位数，二、逆序打印出各位数字。publicclassTest{publicstaticvoidmain(String[]args){Scannersc=newScanner(System.in);intnum=0;Strin...