Given:
Under which three circumstances will the code on line 37 be executed?（）
A.The instance gets garbage collected.
B.The code on line 33 throws an exception.
C.The code on line 35 throws an exception.
D.The code on line 31 throws an exception.
E.The code on line 33 executes successfully.
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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 output assert is on
C. assert is on
D. no output An AssertionError is thrown.
E. assert is on An AssertionError is thrown.
Given:
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.
Given:
What is the result?（）
A.2
B.24
C.234
D.246
E.2346
F.Compilation fails.
Given:
What is the result?（）
A.w-f
B.f-p w-f
C.w-f b-f
D.f-p w-f b-f
E.Compilation fails.
F.An exception is thrown at runtime.
A.If the compile is successful, Utils.class is added to the source directory.
B.The compiler returns an invalid flag error.
C.If the compile is successful, Utils.class is added to the classes directory.
D.If the compile is successful, Utils.class is added to the bigProject directory.
Click the Exhibit button. 
What is the output of the program shown in the exhibit?（）
A.300-100-100-100-100
B.300-300-100-100-100
C.300-300-300-100-100
D.300-300-300-300-100
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 the command: java-classpath /test:/home/bob/downloads/*.jar games.Chess Bob'sCLASSPATH 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
F.inside jarfile /opt/java/lib/Games.jar (with a correct manifest)
G. inside jarfile /home/bob/downloads/Games.jar (with a correct manifest)
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.
Given:
What is the result?（）
A.81
B.82
C.91
D.92
E.Compilation fails.
F.An exception is thrown at runtime.
A. The JAR file is located at $JAVA_HOME/jre/classes/myLib.jar.
B. The JAR file is located at $JAVA_HOME/jre/lib/ext/myLib.jar..
C. The JAR file is located at /foo/myLib.jar and a classpath environment variable is set that includes /foo/myLib.jar/Paper.class.
D. The JAR file is located at /foo/myLib.jar and a classpath environment variable is set that includes /foo/myLib.jar.
E. The JAR file is located at /foo/myLib.jar and the Book class is compiled using javac -cp /foo/myLib.jar/Paper Book.java.
F. The JAR file is located at /foo/myLib.jar and the Book class is compiled using javac -d /foo/myLib.jar Book.java
G. The JAR file is located at /foo/myLib.jar and the Book class is compiled using javac -classpath /foo/myLib.jar Book.java
最新试题
DRAG DROP Click the Task button.
Given:What is the result?（）
Given:Which two are true? （）
Given:What is the result?（）
Click the Exhibit button. What two must the programmer do to correct the compilation errors? （）
Which three statements are true?（）
DRAG DROP Click the Task button.
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?（）
Given:What is the result?（）
DRAG DROP Click the Task button.