Java?е?list??set??map???
???????????? ???????[ 2015/5/20 13:41:37 ] ????????????????
????1.4 ????
????1.4.1??Collection ?? Map ??????
??????????????????洢?????????????
????Collection??????????λ????????????
????Map??????????? key-value pair?????С???????
????1.4.2?????????μ???????
????Collection
????--List?????????????洢???????????????????????????????
????--ArrayList / LinkedList / Vector
????--Set ?? ???????????????
????--HashSet / TreeSet
????Map
????--HashMap
????--HashTable
????--TreeMap
????1.4.3??????????
????List??Set??Map?????ж?????????Object???
????Collection??List??Set??Map??????????????????
?????????????? ArrayList?? Vector?? HashTable?? HashMap?????class????Щ???????????
????vector?????????????????е?????????????vector?????б???顣
???????
????1. ????漰??????????е??????????????List?????????????????????????????LinkedList?????????????????????????????ArrayList??
????2. ?????????????????У????????????????????н??У???????????????Ч?????????????????????????????????????????
????3. ??????????????TreeSet??TreeMap????????HashSet??HashMap????????? ??Ч??????
????4. ?????????????????????key???????????дequals??hashCode??????
????5. ???????????ж??????????????????????????????????copy??????????λ?á?????????????????????????????????????????
????6. ???????????????????????緵??List????ArrayList?????????????????ArrayList????LinkedList????????????????????????????
???????
????1??Collection???get()??????????????????????iterator()????????
????2??Set??Collection?????????????
????3??List?????????get()??????????????????????????????????????е??????get(0)...??(add/get)
????4????????ArrayList????LinkedList??????stack??????queue??
????5??Map?? put(k??v) / get(k)???????????containsKey()/containsValue()?????????????????key/value??
????HashMap??????????hashCode?????????key??
????6??Map???????????key???С?value???е????????????
???????keySet()???key???У???map?е?????keys???????Set??
???????values()???value???У???map?е?????values???????Collection??
??????????????Set?????????Collection???????????key??????value?????????
???????????????????????漰???????????????????SPASVOС??(021-61079698-8054)?????????????????????????
??????
Java???????????Щ???????????????Java????????????????Java?б???Map????????Java Web???????????????Java??????????????д?????Java????????7???????????????????????(java .net ?????)???Java??????????Python??????Java webdriver??λ????????′????е?????Java??д??????????????????Java???????????????JavaScript????????????Java?????????????????? Java???????10??????????????Java?м????????????????java???????ü???????????м???????????????????
???·???
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2023/3/23 14:23:39???д?ò??????????
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2022/6/14 16:14:27??????????????????????????
2021/10/18 15:37:44???????????????
2021/9/17 15:19:29???·???????·
2021/9/14 15:42:25?????????????
2021/5/28 17:25:47??????APP??????????
2021/5/8 17:01:11????????
?????????App Bug???????????????????????Jmeter?????????QC??????APP????????????????app?????е????????jenkins+testng+ant+webdriver??????????????JMeter????HTTP???????Selenium 2.0 WebDriver ??????