A developer is creat...

多项选择题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？（）

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 –classpath /foo/myLib.jar Book.java

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1.单项选择题 What is the result？（）

A.1，2，3
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D.Compilation fails because of an error in line 14.
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2.单项选择题 What is the result？（）

A.TestA
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D.An exception is thrown at runtime.

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3.单项选择题 What is the result？（）

A.Compilation succeeds.
B.Exactly one class does NOT compile.
C.Exactly two classes do NOT compile.
D.Exactly four classes do NOT compile.
E.Exactly three classes do NOT compile.

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4.多项选择题 Which two classes correctly implement both the java.lang.Runnable and the java.lang.Cloneable interfaces？（）

A.A
B.B
C.C
D.D
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5.单项选择题 Which statement is true about the class of an object that can reference the variable base？（）

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6.单项选择题 What is the result？（）

A.Compilation fails because of an error in line 3.
B.Compilation fails because of an error in line 7.
C.Compilation fails because of an error in line 9.
D.If you define D e = new E（），then e.bMethod（） invokes the version of bMethod（） defined in Line 5.
E.If you define D e = （D）（new E（）），then e.bMethod（） invokes the version of bMethod（） defined in Line 5.
F.If you define D e = （D）（new E（）），then e.bMethod（） invokes the version of bMethod（） defined in Line 9.

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7.多项选择题 Which three are valid on line 12？（）

A.final
B.static
C.native
D.public
E.private
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G.protected

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8.单项选择题Given the following six method names：（1）addListener（2）addMouseListener （3）setMouseListener（4）deleteMouseListener（5）removeMouseListener（6）registerMouseListenerHow many of these method names follow JavaBean Listener naming rules？（）

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