<\/p>\n
HashTable & HashMap<\/p>\n
HashTable<\/p>\n
HashTable\uc740 \ud0a4\ub098 \uac12\uc5d0 Null\uc744 \ud5c8\uc6a9\ud558\uc9c0 \uc54a\ub294\ub2e4<\/p>\n
\ub610\ud55c Object\uc5d0 \uc815\uc758\ub41c hashCode()\uc640 equals() \ub9e4\uc11c\ub4dc\ub97c \uc7ac\uc758\ud558\ub294 \uac1d\uccb4\ub4e4\ub9cc \uc800\uc7a5\ud560 \uc218 \uc788\ub2e4<\/p>\n
\ub2e4\ud589\ud788\ub3c4 \uc790\ubc14 \ub0b4\uc7a5 \ud074\ub798\uc2a4\ub4e4\uc740 \ub300\ubd80\ubd84 hashCode()\uac00 \uad6c\ud604\ub418\uc5b4\uc788\ub2e4\ub294 \uac83\uc744 \uc54c\uace0 \uc788\uc744 \uac83\uc774\ub2e4<\/p>\n
\ud2b9\ud788 String\ud0c0\uc785\uc774 hashCode(), equals()\ub9e4\uc11c\ub4dc\uac00 \ub450\uac1c \ubaa8\ub450 \uad6c\ud604\ub418\uc5b4\uc788\ub2e4<\/p>\n
HashTable\uc740 Map \ud074\ub798\uc2a4\uc640 \ub9c8\ucc2c\uac00\uc9c0\ub85c \ubc18\ubcf5\uc790(interator)\ub97c \uc9c1\uc811 \uc81c\uacf5\ud558\uc9c0 \uc54a\ub294\ub2e4<\/p>\n
\ub2e4\uc74c \ub450\uac00\uc9c0 \ubc29\uc2dd\uc73c\ub85c HashTable\uc758 \ub0b4\uc6a9\uc744 \ucd9c\ub825\ud560\uc218\uc788\ub2e4<\/p>\n
HashTable hashTable= new HashTable();\r\nhashTable.put(\"XML\", \"tag\");\r\nhashTable.put(\"oracle\", \"sql\");\r\nEnumeration keys=hashTable.keys();\r\nwhile(keys.hasMoreElements()) {\r\n key=(String)keys.nextElement();\r\n System.out.println(hashTable.get(key));\r\n}\r\n<\/pre>\n\ub610\ub294<\/p>\n
Set set=hashTable.keySet();\r\nIterator keys=set.interator();\r\nwhile(keys.hasNext()){\r\n key=(String)keys.next();\r\n System.out.println(hashTable.get(key));\r\n}<\/pre>\nHashMap<\/p>\n
HashMap\uc740 \ud0a4\ub098 \uac12\uc5d0 Null\uc744 \ud5c8\uc6a9\ud55c\ub2e4<\/p>\n
HashMap \ucd9c\ub825\ubc29\ubc95\uc740 \ub2e4\uc74c\uc758 \ud55c\uac00\uc9c0 \ubc16\uc5d0 \uc5c6\ub2e4(Enumeration \uc9c0\uc6d0 \uc548\ud568)<\/p>\n
HashMap hashMap=new HashMap();\r\nhashMap.put(\"XML\", \"tag\");\r\nhashMap.put(\"oracle\", \"sql\");\r\nSet set=hashMap.entrySet();\r\nIterator keys=set.iterator();\r\nwhile(keys.hasNext()){\r\n key=(String)keys.next();\r\n System.out.println(hashMap.get(key));\r\n}\r\n<\/pre>\n\ub610\ud55c HashTable\uc740 thread safe**\uc758 \ud55c \uac1d\uccb4\uc774\uc9c0\ub9cc HashMap\uc740\uadf8\ub807\uc9c0 \ubabb\ud574 unsynchronized\ud558\ub2e4<\/p>\n
\uc774\ub9d0\uc740 \uc989 \uba40\ud2f0 \uc4f0\ub808\ub4dc \ud658\uacbd\uc774 \uc544\ub2c8\uba74 HashMap\uc744 \uc4f0\uba74 \uc18d\ub3c4\uac00 \ube60\ub974\ub2e4\ub294 \ub9d0\uc774\ub41c\ub2e4<\/p>\n
\uad73\uc774 \ub3d9\uae30\ud654 \ud558\uc790\uba74 \ub2e4\uc74c\uacfc \uac19\uc774 \uc0ac\uc6a9\ud574\uc57c\ud560\uac83\uc774\ub2e4<\/p>\n
Map m=Collections.synchronizedMap(new HashMap(...));<\/pre>\n\uac04\ub2e8\ud788 \uc815\ub9ac\ud558\uc790\uba74 HashMap\uc774 HashTable\uc5d0 \ube44\ud574 \uc880\ub354 \uc2e4\uc6a9\uc801\uc73c\ub85c \ubcc0\ud55c \ud615\ud0dc\ub77c\uace0 \ubcf4\uba74 \ub420\uac83\uc774\ub2e4<\/p>\n
\uc77c\ubc18\uc801\uc73c\ub85c \uc4f4\ub2e4\uba74 HashMap\uc744 \ucd94\ucc9c\ud558\ub294 \ubc14\uc774\ub2e4<\/p>\n
\ucd9c\ucc98 : http:\/\/cafe.naver.com\/inggi.cafe?iframe_url=\/ArticleRead.nhn%3Farticleid=48<\/p>\n
<\/p>\n","protected":false},"excerpt":{"rendered":"
HashTable & HashMap HashTable HashTable\uc740 \ud0a4\ub098 \uac12\uc5d0 Null\uc744 \ud5c8\uc6a9\ud558\uc9c0 \uc54a\ub294\ub2e4 \ub610\ud55c Object\uc5d0 \uc815\uc758\ub41c hashCode()\uc640 equals() \ub9e4\uc11c\ub4dc\ub97c \uc7ac\uc758\ud558\ub294 \uac1d\uccb4\ub4e4\ub9cc \uc800\uc7a5\ud560 \uc218 \uc788\ub2e4 \ub2e4\ud589\ud788\ub3c4 \uc790\ubc14 \ub0b4\uc7a5 \ud074\ub798\uc2a4\ub4e4\uc740 \ub300\ubd80\ubd84 hashCode()\uac00 \uad6c\ud604\ub418\uc5b4\uc788\ub2e4\ub294 \uac83\uc744 \uc54c\uace0 \uc788\uc744 \uac83\uc774\ub2e4 \ud2b9\ud788 String\ud0c0\uc785\uc774 hashCode(), equals()\ub9e4\uc11c\ub4dc\uac00 \ub450\uac1c \ubaa8\ub450 \uad6c\ud604\ub418\uc5b4\uc788\ub2e4 … Continue reading