If x is a char, and values is an int array, then values[x]
A) causes a syntax error
B) causes an Exception to be thrown
C) casts x as an int based on x's position in the alphabet (for instance, if x is 'a' then it uses 0 and if x is 'z' then it uses 25)
D) casts x as an int based on x's ASCII value (for instance, if x is 'a' then it uses 97 and if x is 'z' then it uses 122)
E) casts x as an int based on the digit that is stored in x (for instance, if x is '3' it uses 3) but throws an exception if x does not store a digit

Question

Quizplus · Accepted Answer

D) An array index must be an int value, so normally values[x] would cause a syntax error if x were not an int, but the Java compiler will automatically cast x to be an int if it can be cast. Characters are cast as ints by converting the char value to its equivalent ASCII value. So, if x is 'a', it is cast as the int 97 instead and so values[x] accesses values[97].

If X Is a Char, and Values Is an Int