Given:



Which is true?

A.

Sum for 0 to 0 = 55

B.

Sum for 0 to 10 = 55

C. Compilation fails due to error on line 6.
D. Compilation fails due to error on line 7.
E. An Exception is thrown at the runtime.

題解

程式第7行使用到第5行for迴圈內宣告的x變數,由於x變數只在for迴圈內才可以被有效地存取,而程式第7行已經在for迴圈之外,因此會發生編譯錯誤。