import java.util.*;public class Freq {    public static void main(String args[]) {        Map<String, Integer> m = new HashMap<String, Integer>();        // Initialize frequency table from command line        for (String a : args) {            int freq =  m.get(a);            m.put(a, freq==0 ? 1 : freq + 1);        }        System.out.println(m.size() + " distinct words detected:");        System.out.println(m);    }}