01: package java.util;
02:
03: public abstract class Dictionary {
04: public Dictionary() {
05: }
06:
07: public abstract Enumeration elements();
08:
09: public abstract Object get(Object key);
10:
11: public abstract boolean isEmpty();
12:
13: public abstract Enumeration keys();
14:
15: public abstract Object put(Object key, Object value);
16:
17: public abstract Object remove(Object key);
18:
19: public abstract int size();
20: }
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