import java.util.*;

class PointMap {
    public static void main (String [] args) {

        Map<String, Point> myPoints = 
            new Hashtable<String, Point>();

        myPoints.put("BUBU", new Point(1.0,1.0));

        // 1. einen Iterator auf das keySet erzeugen
        // Iterator<String> it = myPoints.keySet().iterator();

        // 2. Keys durchgehen und Elemente aus der Map holen
        // while(it.hasNext()) {
        //    String aKey = it.next(); 
        // JAVA 1.5 enthält for-each loops 
        
        for (String aKey : myPoints.keySet()) {
            Point b = myPoints.get(aKey);
            System.out.println("Key: "+aKey +" Value: "+b);
        }
    } 
}

class Point { double x,y; 
    Point(double xi, double yi) { x=xi; y=yi; }
    public String toString() { return "Point("+x+","+y+")"; }
}