????1. JVM???(??????????汾???????
????JVM???java???е?????????????????JVM???????????????java?????ú?????????????г???3??Java??????????????JVM????????????????????????JVM??????????????????????????????????????java?????????????
????2. Java??????
????javac ????java???? class ???
????java ????????? ??package??java??????????????????
????java?????漰???????·??(classpath?? java??library??path?? java???е???????
????3. ????????
????????????? int?? long?? float?? double?? boolean ?? ??????
????????????????? Integer ????????????????????? ???????
????Object????? equals?? hashcode
????String ????????
????4. ??????????????????
???????У?????????? ??????????? ???ù?????
?????м?У????????????? ????????? ????????????? ?? ?????->???? ??????崦???????? ??й?????
????5. ?????????????
???????????????????????????У????; ???????????????Щ????????????????????ó???
??????????????????????????
????????????????
??????У????????????????
?????????????????
?????????????????????????
?????????
????6. Static
??????????????壬???????????????γ????
????????????????????
?????????????????
????????????????????????
????7.??????
???????????????? ????Collection ??Map
???????彎??????????? List ??Set ??Map ???????????????? ?????????? ???ó?????
????????????????? Collections ????÷?