单项选择题
A.7
B.49
C.343
D.Compilation fails.
E.An exception is thrown at runtime.
单项选择题 Which code fragment， inserted at line 23， allows the code to compile？（）
单项选择题 Given： 1.d is a valid， non-null Date object 2.df is a valid， non-null DateFormat object set to the current locale What outputs the current locale’s country name and the appropriate version of d’s date？（）
多项选择题 Which two code fragments， inserted independently at line 3， generate the output 4247？（）
