问题：

[多选]

A developer is creating a class Book that needs to access class Paper.The Paper class is deployed in a JARnamedmyLib.jar.Whichthree，taken independently，will allow the developer to use the Paper class while compiling the Book class？（）

A . The JAR fileis located at$JAVA_HOME/jre/classes/myLib.jar.
B . The JAR fileis located at$JAVA_HOME/jre/lib/ext/myLib.jar.
C . TheJ AR fileis located at/foo/myLib.jar and aclasspath environment variable is set that includes /foo/myLib.jar/Paper.class.
D . The JAR fileis 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-classpath/foo/myLib.jar Book.java.