第二题

package test;

public class hhh {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		int a=999;
		int b,c,d,e;
		b=a/100;
		c=a/10%10;
		d=(a-b*100)/10;
		e=d+b+c;
		System.out.println("和为"+e);
		
		
				
	}

}