Generic hashmap with String as key and Integer as value in Java

//from   w  w  w .j  ava2s. c  om
import java.util.HashMap;
import java.util.Map;

public class Main{
    public static void main(String[] args) {
        Map<String, Integer> m = new HashMap<String, Integer>();

        // Initialize frequency table from command line
        for (String a : new String[]{"1","1","java2s.com"}) {
            Integer freq = m.get(a);
            m.put(a, (freq == null) ? 1 : freq + 1);
        }

        System.out.println(m.size() + " distinct words:");
        System.out.println(m);
    }
}