//外部類public?class?HelloWorld?{???
?????private?String?name?=?"愛慕課";????
?????????//?外部類中的show方法???
??????????public?void?show()?{?
??????????//?定義方法內部類
??????????class?MInner?{
??????????int?score?=?83;
??????????public?int?getScore()?{
??????????return?score?+?10;
??????????
?????????}
????????}?????
??????//?創建方法內部類的對象
??????????MInner?mi?=?new?MInner();
????//?調用內部類的方法
????int?new?Score?=?mi.?getScore();?
????System.out.println("姓名:"?+?name?+?"\n加分后的成績:"?+?newScore);
????}??
?????//?測試方法內部類
?????public?static?void?main(String[]?args)
??????{?
??????//?創建外部類的對象?
???????HelloWorld?mo=nwe?HelloWorld();?
????????//?調用外部類的方法
????????mo.show();
2020-12-11
HelloWorld?mo=nwe?HelloWorld();?
是new不是nwe