Given that the current directory is empty， and that the user has read and write permissions， and thefollowing：
Which statement is true？（）
A.Compilation fails.
B.The file system has a new empty directory named dir.
C.The file system has a new empty directory named newDir.
D.The file system has a directory named dir， containing a file f1.txt.
E.The file system has a directory named newDir， containing a file f1.txt.
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A.Closing an open stream.
B.Flushing an open stream.
C.Writing to an open stream.
D.Writing a line separator to an open stream.
Given:
What is the output?（）
A.42
B.420
C.462
D.42042
Given：
11.double input = 314159.26；
12.NumberFormat nf = NumberFormat.getInstance（Locale.ITALIAN）；
13.String b；
14.//insert code here
Which code， inserted at line 14， sets the value of b to 314.159，26？（）
A.b = nf.parse（ input ）；
B.b = nf.format（ input ）；
C.b = nf.equals（ input ）；
D.b = nf.parseObject（ input ）；
Given a valid DateFormat object named df，and
16.Date d = new Date（0L）；
17.String ds = "December 15， 2004"；
18.//insert code here
What updates d’s value with the date represented by ds？（）
A.18. d = df.parse（ds）；
B.18. d = df.getDate（ds）；
C.18. try {19. d = df.parse（ds）；20. } catch（ParseException e） { }；
D.18. try {19. d = df.getDate（ds）；20. } catch（ParseException e） { }；
Assuming that the serializeBanana（） and the deserializeBanana（） methods will correctly use Javaserialization and given：
What is the result？（）
A.restore 400
B.restore 403
C.restore 453
D.Compilation fails.
E.An exception is thrown at runtime.
Given：
What is the result？（）
A.Canada
B.null Canada
C.Canada null
D.Canada Canada
E.Compilation fails due to an error on line 26.
A team of programmers is reviewing a proposed API for a new utility class. After some discussion， theyrealize that they can reduce the number of methods in the API without losing any functionality.
If theyimplement the new design，which two OO principles will they be promoting？（）
A.Looser coupling
B.Tighter coupling
C.Lower cohesion
D.Higher cohesion
E.Weaker encapsulation
Given：
Which is true？（）
A.If line 10 is removed， the compilation succeeds.
B.If line 11 is removed， the compilation succeeds.
C.If line 12 is removed， the compilation succeeds.
D.If line 13 is removed， the compilation succeeds.
E.More than one line must be removed for compilation to succeed.
Given：
What is the result？（）
A.0，0，0
B.150，60，0
C.Compilation fails.
D.150，150，150
Given：
1.package test；
2.
3.class Target {
4.public String name = "hello"；5.}
What can directly access and change the value of the variable name？（）
A.any class
B.only the Target class
C.any class in the test package
D.any class that extends Target
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Given：What is the result？（）