问答题 DRAG DROP Click the Task button.

单项选择题 Click the Exhibit button. Given the fully-qualified class names: com.foo.bar.Dog com.foo.bar.blatz.Book com.bar.Car com.bar.blatz.Sun Which graph represents the correct directory structure for a JAR file from which those classes can be used by the compiler and JVM? （）

多项选择题 Click the Exhibit button. Which three code fragments, added individually at line 29, produce the output 100?（）