单项选择题
A.Compilation fails.
B.An exception is thrown at runtime.
C.doStuff x = 6 main x = 6
D.doStuff x = 6 main x = 7
E.doStuff x = 7 main x = 6
单项选择题 Given： What is the result？（）
单项选择题 Given： When the doSomething method is called， after which line does the Object created in line 5 become available for garbage collection？（）
单项选择题 Click the Exhibit button. Which graph represents the correct directory structure for a JAR file from which those classes can be used by the compiler and JVM？（）
