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单项选择题 public class Test {  public enum Dogs {collie, harrier, shepherd};  public static void main(String [] args) {  Dogs myDog = Dogs.shepherd;  switch (myDog) {  case collie:  System.out.print(”collie “);  case default:  System.out.print(”retriever “); case harrier:  System.out.print(”harrier “);  }  }  }  What is the result?() 

A、 harrier

B、 shepherd

C、 retriever

D、 Compilation fails.

E、 retriever harrier

F、 An exception is thrown at runtime.

  • D
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