单项选择题
Given：
What is the result？（）
A.No output is produced. 1 2 3
B.No output is produced. 2 3 4
C.No output is produced. 1 2 3 4
D.An exception is thrown at runtime. 1 2 3
相关考题
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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 Bookclass？（）
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 -
单项选择题
Given： What is the result？（）
A.Compilation fails.
B.An exception is thrown at runtime.
C.The attribute id in the ItemTest object remains unchanged.
D.The attribute id in the ItemTest object is modified to the new value.
E.A new ItemTest object is created with the preferred value in the id attribute. -
多项选择题
Given： Which two， placed on line 13， will produce the output gobstopper？（）
A.System.load（"prop.custom"）；
B.System.getenv（"prop.custom"）；
C.System.property（"prop.custom"）；
D.System.getProperty（"prop.custom"）；
E.System.getProperties（）.getProperty（"prop.custom"）；
