package demo;
import java.util.Scanner;
public class Tex {

  public static void main(String[] args) {

    Scanner input = new Scanner(System.in);
    System.out.println("请输入一个0-1000之间的整数");
    int a =(int)input.nextDouble();

    if(a>999||a<0) {
      System.out.println("输入有误");

    }
    else if(a>0 && a<10){
      System.out.println("The sum of the digits is "+ a);
    }
    else if(a>9 && a<100) {
      int b=(a/10) + (a%10);
      System.out.println("The sum of the digits is "+ b);
    }    
    else if(a>99 && a<1000) {
      int c=(a/100)+(a%100)+(a%10%10); 
      System.out.println("The sum of the digits is "+ c);
    }
  }

}

 

posted on 2017-09-18 13:39  吕志远  阅读(165)  评论(0编辑  收藏  举报