单项选择题

Given:

What is the output?()

A.42
B.420
C.462
D.42042


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1.单项选择题

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 );

2.单项选择题

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) { };

3.单项选择题

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.

4.单项选择题

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.

6.单项选择题

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.

7.单项选择题

Given:

What is the result?()

A.0,0,0
B.150,60,0
C.Compilation fails.
D.150,150,150

8.单项选择题

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

9.单项选择题Which Man clsss properly represents the relationship "Man has a best friend who is a Dog"?()

A.class Man extends Dog { }
B.class Man implements Dog { }
C.class Man { private BestFriend dog; }
D.class Man { private Dog bestFriend; }
E.class Man { private Dog; }
F.class Man { private BestFriend; }

10.多项选择题

Given:

Which two, independently, will allow Sub to compile?()

A.Change line 2 to:public int a;
B.Change line 2 to:protected int a;
C.Change line 13 to:public Sub() { this(5); }
D.Change line 13 to:public Sub() { super(5); }