试题详情
- 单项选择题 What is the result?()
A、Compilation fails.
B、An exception is thrown at runtime.
C、The variable first is set to null.
D、The variable first is set to elements[0].
- D
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A、Compilation fails.
B、An exception is thrown at runtime.
C、The variable first is set to null.
D、The variable first is set to elements[0].
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