单项选择题
Given: What is the result?（）
A.harrier B.shepherd C.retriever D.Compilation fails. E.retriever harrier F.An exception is thrown at runtime.
单项选择题 Given: If some sort of exception is thrown at line 34, which output is possible?（）
单项选择题 Given: Which code, inserted at line 16, will cause a java.lang.ClassCastException?（）
单项选择题 Given: What is the result?（）
