单项选择题
Given a correctly compiled class whose source code is： Assume that the class file is located in /foo/com/sun/sjcp/， the current directory is /foo/， and that theclasspath contains "." （current directory）. Which command line correctly runs Commander？（）
A.java Commander B.java com.sun.sjcp.Commander C.java com/sun/sjcp/Commander D.java -cp com.sun.sjcp Commander E.java -cp com/sun/sjcp Commander
单项选择题 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？（）
单项选择题 Given： What is the result？（）
