| import java.util.*;
 /**
  * Collection 与iterator接口
  *
  *
 **/
 public class TestCollection
 {
   	public static void main(String args[])
   	{
      	ArrayList v = new ArrayList();
     		int b = 0;
     		System.out.println("please input the number:");
     		while(true)
     		{
     			try
     			{
       				b = System.in.read();
     			}
     			catch(Exception e)
     			{
         				e.printStackTrace();
     			}
     			if(b=='\r' || b=='\n')
     			{
       				break;
     			}
     			else
     			{
       				int num = b -'0';
       				v.add(new Integer(num));
     			}
     		}
     		int sum = 0;
     		Iterator e = v.iterator();
     		while(e.hasNext())
     		{
 	      		Integer intObj = (Integer)e.next();
       			sum += intObj.intValue();
     		}
     		System.out.println(sum);
    	}
 } 
 
   |