Java???????????
???????????? ???????[ 2012/11/21 13:19:26 ] ????????
??????JAVA????????о?????????????? ????int char double ?????????????????“????”?????
???????????????????????new?????????“??”???????byte??char??Щ???С??????????????????в????????Ч???
????????????????????java?????C??C++??????????????????new?????????? ?????????????????????? ??“???”????????????????洢“?”????У????????Ч??
??????????????????????JAVA?????????????????????????????
?????磺???????????????????????????????????????????????????????????String?????????int ????? ???jdk??????????????????????
int a=0;
String result=Integer.toString(a);
????java??????????????????
char c ='x';
Character ch=new Character(c);
???????????????
<Character ch=new Character('x');
??????????????
char c=ch
??????2?? ??? ??????????????????????Object?????????????int?????????????У??????????????????
public void test(Object obj){
}
??????????5???????????
test(new Integer(5));
??????????????????????????÷?????????????????????????????????????????????Щ???????Object????????????????????????
??????
???·???
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