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