单项选择题
Given： If the user types the password aiko when prompted， what is the result？（）
A.password：got B.password：got aiko C.password：aikogot aiko D.An exception is thrown at runtime. E.Compilation fails due to an error on line 8.
Given： What is the result？（）A.Compilation fails.B.An e...
Given： What is the result？（）
A.Compilation fails. B.An exception is thrown at runtime. C.An instance of Forest is serialized. D.An instance of Forest and an instance of Tree are both serialized.
Given： What is the result？（）A.7B.49C.343D.Compilation ...
A.7 B.49 C.343 D.Compilation fails. E.An exception is thrown at runtime.
Given： Which code fragment， inserted at line 23， allow...
Given： Which code fragment， inserted at line 23， allows the code to compile？（）
A.df = new DateFormat（）； B.df = Date.getFormat（）； C.df = date.getFormat（）； D.df = DateFormat.getFormat（）； E.df = DateFormat.getInstance（）；
