Ikk：新頁面: A developer is creating a class Book, that needs to access class Paper. The Paper class is deployed in a JAR named myLib.jar. Which three, taken independently, will allow the de...

2013-03-30T06:15:24Z

新頁面: A developer is creating a class Book, that needs to access class Paper. The Paper class is deployed in a JAR named myLib.jar. Which three, taken independently, will allow the de...

新頁面

A developer is creating a class Book, that needs to access class Paper.
The Paper class is deployed in a JAR named myLib.jar.

Which three, taken independently, will allow the developer to use the Paper class while compiling the Book class?
(Choose Three.)
A. The JAR file is located at $JAVA_HOME/jre/classes/myLib.jar.
B. The JAR file is located at $JAVA_HOME/jre/lib/ext/myLib.jar.
C. The JAR file is located at /foo/myLib.jar and a classpath environment variable is set
that includes /foo/myLib.jar/Paper.class.
D. The JAR file is located at /foo/myLib.jar and a classpath environment variable is set
that includes /foo/myLib.jar.
E. The JAR file is located at /foo/myLib.jar and the Book class is compiled using
javac –cp /foo/myLib.jar/Paper Book.java
F. The JAR file is located at /foo/myLib.jar and the Book class is compiled using
javac -d /foo/myLib.jar Book.java
G. The JAR file is located at foo/myLib.jar and the Book class is compiled using
javac –classpath /foo/myLib.jar Book.java

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<span style="font-size:medium;">解答</span>

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<span style="font-size: medium;">Ans: B D G </span>

<span style="font-size:medium;"> 解說:
一個程式發展者正在建立一個類別Book，這個類別必須存取類別Paper，類別Paper被佈署在一個名為myLib.jar的JAR檔案，
下列那三個可以分別地被這個發展者用來使用類別Paper，在編譯類別Book時
$JAVA_HOME/jre/lib/ext是Java執行環境預設放置JAR檔的地方
若不是放在這個地方，就要配合classpath的設定或指定，如答案BDG

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{{SCJP 1.6版考題講解}}

SCJP 1.6版考題 078 - 修訂歷史

Ikk：新頁面: A developer is creating a class Book, that needs to access class Paper. The Paper class is deployed in a JAR named myLib.jar. Which three, taken independently, will allow the de...