Java String StringBuilder StringBuffer
???????????? ???????[ 2015/4/30 13:26:22 ] ????????Java StringBuilder StringBuffer
??????ò???
????1) ????????????????????????????String ?????????????????????StringBuilder ?????????????????????StringBuffer??
????2) ??????String???”+”???????????????????????????????????????StringBuffer??StringBuilder??????Java??????????????????????????磺
????String result = "";
????for (String s : hugeArray) {
????result = result + s;
????}
????// ???StringBuilder
????StringBuilder sb = new StringBuilder();
????for (String s : hugeArray) {
????sb.append(s);
????}
????String result = sb.toString();
??????????????????????????????????????????????????????????????????????String result???????????????????????????.
????3) StringBuilder???????????????????????”+”???????????????????????????????????????StringBuffer??????????????С?
????4) ??????????? StirngBuilder ?????? StringBuffer ?????? 10%~15% ???????????????????e??????????????????????????黯????У?????????????????????????????ж?????????????????????????У??????????????????????? StringBuffer ???????????????鯔???????????????£?????????StringBuilder??????????StringBuffer??
???????????????????????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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