1    package javagroup.util; 
2     
3    import java.util.Hashtable; 
4     
5    public class CaseInsensitiveHashtable extends Hashtable { 
6     
7        public Object put(Object key, Object value) { 
8            return super.put(toLowerCase(key), value); 
9        } 
10    
11       public Object get(Object key) { 
12           return super.get(toLowerCase(key)); 
13       } 
14    
15       public Object toLowerCase(Object obj) { 
16           if (obj instanceof String) 
17               obj = ((String) obj).toLowerCase(); 
18    
19           return obj; 
20       } 
21    
22   } 
23