Given：
What is the result？（）
A.Compilation fails.
B.An exception is thrown at runtime.
C.doStuff x = 6 main x = 6
D.doStuff x = 6 main x = 7
E.doStuff x = 7 main x = 6
您可能感兴趣的试卷
你可能感兴趣的试题
Given classes defined in two different files：
What is required at line 5 in class SomeApp to use the process method of BitUtils？（）
A.process（bytes）；
B.BitUtils.process（bytes）；
C.app.BitUtils.process（bytes）；
D.util.BitUtils.process（bytes）；
E.import util.BitUtils.*； process（bytes）；
F.SomeApp cannot use the process method in BitUtils.
A UNIX user named Bob wants to replace his chess program with a new one， but he is not sure where theold one is installed.
Bob is currently able to run a Java chess program starting from his home directory /home/bob using thecommand：
java -classpath /test：/home/bob/downloads/*.jar games.
Chess Bob’s CLASSPATH is set （at login time） to：
/usr/lib：/home/bob/classes：/opt/java/lib：/opt/java/lib/*.jar
What is a possible location for the Chess.class file？（）
A./test/Chess.class
B./home/bob/Chess.class
C./test/games/Chess.class
D./usr/lib/games/Chess.class
E./home/bob/games/Chess.class
Given：
What is the result？（）
A.r， t， t，
B.r， e， o，
C.Compilation fails.
D.An exception is thrown at runtime.
Given：
Which code fragment， inserted at the end of line 12， produces the output p is 420？（）
A.p.setWeight（420）；
B.p.changePayload（420）；
C.p = new Payload（420）；
D.Payload.setWeight（420）；
E.p = Payload.setWeight（420）；
Given：
When line 15 is reached， how many objects are eligible for the garbage collector？（）
A.0
B.1
C.2
D.3
E.4
Given：
Which statement is true about the objects referenced by snoog， snooch， and booch immediately after line23 executes？（）
A.None of these objects are eligible for garbage collection.
B.Only the object referenced by booch is eligible for garbage collection.
C.Only the object referenced by snoog is eligible for garbage collection.
D.Only the object referenced by snooch is eligible for garbage collection.
E.The objects referenced by snooch and booch are eligible for garbage collection.
Click the Exhibit button.
Which three code fragments， added individually at line 29， produce the output 100？（）
A.n = 100；
B.i.setX（ 100 ）；
C.o.getY（）.setX（ 100 ）；
D.i = new Inner（）； i.setX（ 100 ）；
E.o.setY（ i ）； i = new Inner（）； i.setX（ 100 ）；
F.i = new Inner（）； i.setX（ 100 ）； o.setY（ i ）；
Given classes defined in two different files：
What is required at line 5 in class SomeApp to use the process method of BitUtils？（）
A.process（bytes）；
B.BitUtils.process（bytes）；
C.util.BitUtils.process（bytes）；
D.SomeApp cannot use methods in BitUtils.
E.import util.BitUtils.*； process（bytes）；
Click the Exhibit button.
Given this code from Class B：
25.A a1 = new A（）；
26.A a2 = new A（）；
27.A a3 = new A（）；
28.System.out.println（A.getInstanceCount（））；
What is the result？（）
A.Compilation of class A fails.
B.Line 28 prints the value 3 to System.out.
C.Line 28 prints the value 1 to System.out.
D.A runtime error occurs when line 25 executes.
E.Compilation fails because of an error on line 28.
Given
11.public interface Status {
12./* insert code here */ int MY_VALUE = 10；
13.}
Which three are valid on line 12？（）
A.final
B.static
C.native
D.public
E.private
最新试题
A team of programmers is involved in reviewing a proposed design for a new utility class. After some discussion， they realize that the current design allows other classes to access methods in the utility class that should be accessible only to methods within the utility class itself.What design issue has the team discovered？（）
Click the Exhibit button.What is the result？（）
Click the Exhibit button.What two must the programmer do to correct the compilation errors？（）
Given：What is the result？（）
Given:What is the result？（）
Given：What is the appropriate definition of the hashCode method in class Person？（）
Given：What is the result？（）
A class games.cards.Poker is correctly defined in the jar file Poker.jar. A user wants to execute the main method of Poker on a UNIX system using the command：java games.cards.Poker What allows the user to do this？（）
Given a method that must ensure that its parameter is not null：What， inserted at line 12， is the appropriate way to handle a null value？（）
Given：What is the result？（）