SCJP題庫第091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 /stuff/java/*.jar

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

Ans: C

解說:

一個類別games.cards.Poker被正確地定義在 Poker.jar中，一個使用者要去執行類別Poker中的main，使用如下指令

java games.cards.Poker

把Poker.jar放在/stuff/java裏，並且設定CLASSPATH 含入stuff/java/Poker.jar