map接口嗎 應(yīng)該用hashmap呀 我這個(gè)用map報(bào)錯(cuò)
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ap不是map不是接口嗎 ?應(yīng)該用hashmap呀 ?我這個(gè)用map報(bào)錯(cuò)
慕絲4937072
2017-02-28
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2017-03-03
public interface
Map
java.util.Map<K,?V> ? ?
Known Indirect Subclasses
AbstractMap<K,?V>,?ArrayMap<K,?V>,?Attributes,?AuthProvider,?ConcurrentHashMap<K,?V>,?ConcurrentMap<K,?V>,ConcurrentNavigableMap<K,?V>,?ConcurrentSkipListMap<K,?V>,?EnumMap<K?extends?Enum<K>,?V>,?HashMap<K,?V>,Hashtable<K,?V>,?IdentityHashMap<K,?V>,?LinkedHashMap<K,?V>,?NavigableMap<K,?V>,?Properties,?Provider,SortedMap<K,?V>,?TreeMap<K,?V>,?WeakHashMap<K,?V>
? ?
2017-03-01
map是一種常用的數(shù)據(jù)結(jié)構(gòu)，稱為鍵值對(duì)。