java输出任意整数的每一位

import java.util.*;
public class Exe{
    public static void main(String[] args){
        Scanner input = new Scanner(System.in);
        System.out.println("请输入一个整数：");
        int count = input.nextInt();
        int m,i=1,j,t,k;
        m=count;
        while(m>9){  //判断n是几位数
            m=m/10;
            i++;
        }
        if(count>9)
            System.out.println(count+"是"+i+"位数");
        if(count<10){   //顺序输出
            System.out.println(count+"是一位数："+count);//个位数被10整除都为0，
        }
        else{
            for(k=i;k>0;k--){
                m=count;t=1;
                for(j=0;j<k-1;j++){
                    t*=10;
                }
                m=m/t;m=m%10;
                System.out.print(m+" ");
            }
        }
    }
}

import java.util.*;
public class Exe1{
    public static void func(int n){
        if(n>9){
            func(n/10);
        }
        System.out.println(n%10);
    }
    public static void main(String[] args){
        Scanner input = new Scanner(System.in);
        System.out.println("请输入一个整数：");
        int n = input.nextInt();
        func(n);
    }
}

import java.util.Scanner;
public class Test {
    public static void fun(int num){
        if(num>9){
            fun(num/10);
        }
        System.out.println(num%10);
    }
        public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        System.out.println("请输入数字：");
        int value = scan.nextInt();
        fun(value);
    }
}