你可能感興趣的試題

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
E. put Poker.jar in directory /stuff/java/games/cards， and set the CLASSPATH to include /stuffijava/*.jar
F. put Poker.jar in directory /stuff/java/games/cards， and set the CLASSPATH to include /stuff/java/Poker.jar

單項選擇題

1. public class GC {
2. private Object o；
3. private void doSomethingElse（Object obj） { o = obj； }
4. public void doSomething（） {
5. Object o = new Object（）；
6. doSomethingElse（o）；
7. o = new Object（）；
8. doSomethingElse（null）；
9.o=null；
10. }
11. }
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
F. Line 10

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Given the fully-qualified class names： com.foo.bar.Dog com.foo.bar.blatz.Book com.bar.Car com.bar.blatz.Sun Which graph represents the correct directory structure for a JAR file from which those classes can be used by the compiler and JYM？（）

你可能感興趣的試題

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？（）

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Given the fully-qualified class names：
com.foo.bar.Dog
com.foo.bar.blatz.Book
com.bar.Car
com.bar.blatz.Sun
Which graph represents the correct directory structure for a JAR file from which those classes can be used by the compiler and JYM？（）

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？（）