Java?????????????
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????JDK API?????????????洢???????????????????????????????????????????????????????????????Collection Framework???????????????????????????
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????“key-value”???Map
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????Hash??????????
????Array???????????
????Linked?????????
????Tree????????????????á?
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??????Java?????????????????????ClassCastException????????????????????????????????????????е??????????????????????????Object???????????????JDK5.0?????1???——Java??????
???????壺????????????????????????????????????????ν???????????壨???????壬????????壬???????????壬??????????????????????????????????????????????????????????????List<?> list = null????????????????????????????????????????????????????????????????????
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2021/5/28 17:25:47??????APP??????????
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