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? ()
A.Jar A B.Jar B C.Jar C D.Jar D E.Jar E
多项选择题 Click the Exhibit button. Which three code fragments, added individually at line 29, produce the output 100?()
单项选择题 Given: What is the result?()
多项选择题 Which two scenarios are NOT safe to replace a StringBuffer object with a StringBuilder object?()