01:import java.util.Map;
02:import java.util.TreeMap;
03:
04:public class BoxingDemo1 {
05:	public static void main(String[] args) {
06:		Map map = new TreeMap();
07:		for(int i=0; i<args.length; i++) {
08:			Integer frequency = (Integer)map.get(args[i]);
09:			if(frequency==null) map.put(args[i], new Integer(1));
10:			else                map.put(args[i], new Integer(frequency.intValue() + 1));
11:		}
12:		System.out.println(map);
13:	}
14:}