单项选择题

The variable df is an object of type DateFormat that ha……

The variable df is an object of type DateFormat that has been initialized in line 11. What is the result if this code is run on December 14， 2000？（）

A.The value of s is 14-dic-2000.
B.The value of s is Dec 14， 2000.
C.An exception is thrown at runtime.
D.Compilation fails because of an error in line 13.

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单项选择题What is the result？（）

A.int Long
B.Short Long
C.Compilation fails.
D.An exception is thrown at runtime.

单项选择题What creates the appropriate DateFormat object and adds a day to the Date object？（）

A.35. DateFormat df = DateFormat.getDateFormat（）；42. d.setTime（（60 * 60 * 24） + d.getTime（）；
B.35. DateFormat df = DateFormat.getDateInstance（）；42. d.setTime（（1000 * 60 * 60 * 24） +d.getTime（））；
C.35. DateFormat df = DateFormat.getDateFormat（）；42. d.setLocalTime（（1000 * 60 * 60 * 24） +d.getLocalTime（））；
D.35. DateFormat df = DateFormat.getDateInstance（）； 42. d.setLocalTime（（60 * 60 * 24） +d.getLocalTime（））；

单项选择题What is the result？（）

A.a，b，c
B.1，2，3
C.a1b2c3
D.a1 b2 c3
E.Compilation fails.
F.The code runs with no output.
G.An exception is thrown at runtime.

单项选择题What is the result？（）

A.Compilation fails.
B.After line 15， the value of age is 5.
C.After line 15， the value of age is 3.
D.An exception is thrown at runtime.

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.