多项选择题

Which two statements are true about The result if the default locale is Locale.US？（）

A.The value of b is 2.
B.The value of a is 3.14.
C.The value of b is 2.00.
D.The value of a is 3.141.
E.The value of a is 3.1415.
F.The value of a is 3.1416.
G.The value of b is 2.0000.

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单项选择题

What is the result when method testIfA is invoked？（）

A.True
B.Not true
C.An exception is thrown at runtime.
D.Compilation fails because of an error at line 12.
E.Compilation fails because of an error at line 19.

单项选择题

Which regular expression， inserted at line 12， correctly splits test into "Test A"， "Test B"， and "Test C"？（）

A.String regex = ""；
B.String regex = " "；
C.String regex = ".*"；
D.String regex = "\\s"；
E.String regex = "\\.\\s*"；
F.String regex = "\\w[\.] +"；

单项选择题

What is the result？（）

A.7
B.49
C.343
D.Compilation fails.
E.An exception is thrown at runtime.