Given: Which code, inserted at line 16, will cause a java.lang.ClassCastException?()
- A、Alpha a = x;
- B、Foo f = (Delta)x;
- C、Foo f = (Alpha)x;
- D、Beta b = (Beta)(Alpha)x;
正确答案:B
答案解析:有

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Given: Which code, inserted at line 16, will cause a java.lang.ClassCastException?()
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