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？（）
A.put Poker.jar in directory /stuff/java， and set the CLASSPATH to include /stuff/java
B.put Poker.jar in directory /stuff/java， and set the CLASSPATH to include /stuff/java/*.jar
C.put Poker.jar in directory /stuff/java， and set the CLASSPATH to include /stuff/java/Poker.jar
D.put Poker.jar in directory /stuff/java/games/cards， and set the CLASSPATH to include /stuff/java
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Given：
What is the result？（）
A.s 14
B.s 16
C.s 10
D.Compilation fails.
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：
What is the result？（）
A.1
B.2
C.12
D.Compilation fails.
E.No output is produced.
F.An exception is thrown at runtime.
Given：
When the doSomething method is called， after which line does the Object created in line 5 become available for garbage collection？（）
A.Line 5
B.Line 6
C.Line 7
D.Line 8
E.Line 9
Click the Exhibit button.
Which graph represents the correct directory structure for a JAR file from which those classes can be used by the compiler and JVM？（）
A.Jar A
B.Jar B
C.Jar C
D.Jar D
E.Jar E
Given：
Which line of code marks the earliest point that an object referenced by intObj becomes a candidate for garbage collection？（）
A.Line 16
B.Line 17
C.Line 18
D.Line 19
Given：
What is the result？（）
A.Exception
B.A NullPointerException is thrown at runtime.
C.Compilation fails because of an error in line 20.
D.Compilation fails because of an error in line 14.
Given：
What is the result？（）
A.null
B.zero
C.some
D.Compilation fails.
E.An exception is thrown at runtime.
Given：
What is the result？（）
A.2
B.24
C.234
D.246
E.2346
Given：
What is the result？（）
A.null
B.finally
C.null finally
D.Compilation fails.
E.finally exception
最新试题
Click the Exhibit button.Which statement is true about the set variable on line 12？（）
Given：Which line of code marks the earliest point that an object referenced by intObj becomes a candidate for garbage collection？（）
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？（）
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Given：What is the result？（）
Given：A programmer is developing a class Key， that will be used as a key in a standard java.util.HashMap. Which two methods should be overridden to assure that Key works correctly as a key？（）
Given：What is the result？（）
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