SCJP 1.6版考題 092

Given a correctly compiled class whose source code is:
1. package com.sun.sjcp;
2. public class Commander {
3.   public static void main(String[] args) {
4.     // more code here
5.   }
6. }

Assume that the class file is located in /foo/com/sun/sjcp/, the current directory is /foo/, 
and that the classpath  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

解答

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Ans: B

解說:

設類別檔放在/foo/com/sun/sjcp/中，目前目錄是/foo/，classpath為一個’.’，
那一個指令可以執行類別Commander?
程式碼中宣告Commander 是在套件com.sun.sjcp下，
執行即以java com.sun.sjcp.Commander來執行