What is the result？（）
A.0
B.1
C.4
D.Compilation fails.
E.An exception is thrown at runtime.
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A.When using versions of Java technology earlier than 5.0.
B.When sharing a StringBuffer among multiple threads.
C.When using the java.io class StringBufferInputStream.
D.When you plan to reuse the StringBuffer to build more than one string.
E.Enitiation of separate design processes to the separation of users
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.
What is the result？（）
A.int Long
B.Short Long
C.Compilation fails.
D.An exception is thrown at runtime.
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（））；
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.
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.
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.
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.
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[\.] +"；
What is the result？（）
A.7
B.49
C.343
D.Compilation fails.
E.An exception is thrown at runtime.
最新试题
Given that t1 is a reference to a live thread， which is true？（）
What is the result？（）
What is the result？（）
What can be a result？（）
What is the result？（）
Given： foo and bar are public references available to many other threads， foo refers to a Thread and bar is an Object. The thread foo is currently executing bar.wait（）. From another thread， what provides the most reliable way to ensure that foo will stop executing wait（）？（）
Which three will compile and run without exception？（）
What is the result？（）
What is the result？（）
Which two changes， taken together， would guarantee the output： 1， 2， 3， 4， 5？（）