Java輸入数字反转輸出改進版(Long版)

import java.util.Scanner;

class  Test 
{  
    public static void main(String[] args)   
    {  
        Scanner sc = new Scanner(System.in); 


    long num=sc.nextLong(); 
    System.out.println("Enter a number (-1 to end):"+num);
    long result=0;
    int i=0;
    while(true) 
    { 
      long n=num%10;
      if(n==-1){
        break;
      }
      i++;
      System.out.println("Digit"+i+" = "+n);
      result=result*10+n;
      num=num/10; 


      if(num==0) 
      { 
        break; 
      } 
    }
    }
}
result

Enter a number (-1 to end): 3467895557789999906 ↵
Digit1 = 6
Digit2 = 0
Digit3 = 9
Digit4 = 9
Digit5 = 9
Digit6 = 9
Digit7 = 9
Digit8 = 8
Digit9 = 7
Digit10 = 7
Digit11 = 5
Digit12 = 5
Digit13 = 5
Digit14 = 9
Digit15 = 8
Digit16 = 7
Digit17 = 6
Digit18 = 4
Digit19 = 3

最后

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