Given:
Which statement is true?()
A.Compilation succeeds.
B.Class A does not compile.
C.The method declared on line 9 cannot be modified to throw TestException.
D.TestA compiles if line 10 is enclosed in a try/catch block that catches TestException.
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Given:
What is the result?()
A.end
B.Compilation fails
C.exception end
D.exception test end
E.A Throwable is thrown by main
Given:
What is the result?()
A.null
B.finally
C.null finally
D.Compilation fails
E.finally exception
Given:
If class Donkey is invoked twice, the first time without assertions enabled, and the second time with assertions enabled, what are the results?()
A.no output
B.no outputassert is on
C.assert is on
D.no outputAn AssertionError is thrown.
E.assert is onAn AssertionError is thrown.
Given:
What is the result?()
A.collie
B.harrier
C.Compilation fails.
D.collie harrier
E.An exception is thrown at runtime.
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
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
最新试题
Given:What is the result?()
Given:What is the result?()
Given:What is the result?()
Given:Which code fragment, inserted at the end of line 12, produces the output p is 420?()
Given:Which command-line invocations will compile?()
Given:When the doSomething method is called, after which line does the Object created in line 5 become available for garbage collection?()
Given:Which code, inserted at line 16, correctly retrieves a local instance of a Point object?()
Given:What is the result?()
Given:What is the result?()
A programmer has an algorithm that requires a java.util.List that provides an efficient implementation of add(0, object), but does NOT need to support quick random access.What supports these requirements?()