public class HashMapClient {
    public static void main(String[] args) {
        Map<String, String> map = new HashMap<String, String>();
        map.put("google.com", "74.125.53.103");
        map.put("slashdot.com", "216.34.181.45");
        map.put("cs.washington.edu", "128.208.3.200");
        map.put("facebook.com", "69.63.189.11");
        map.put("google.com", "99.125.53.103");
        map.print();
        
        System.out.println();
        
        System.out.println("do we have google.com? " + map.containsKey("google.com"));
        System.out.println("do we have facebook.com? " + map.containsKey("facebook.com"));
        System.out.println("do we have yahoo.com? " + map.containsKey("yahoo.com"));
        
        System.out.println();
        
        /*
        System.out.println("ip address for google.com: " + map.get("google.com"));
        System.out.println("ip address for facebook.com: " + map.get("google.com"));
        System.out.println("ip address for yahoo: " + map.get("yahoo.com"));
        System.out.println();
        */      
        
    }
}