Analyze the following code.

Question

```
double sum = 0;
for (double d = 0; d < 10; sum += sum + d) {
d += 0.1;
}
```
A. The program has a syntax error because the adjustment statement is incorrect in the for loop.
B. The program has a syntax error because the control variable in the for loop cannot be of the double type.
C. The program compiles but does not stop because d would always be less than 10.
D. The program compiles and runs fine.

Answer 1

D. The program compiles and runs fine.
In this loop, the loop initial action is d = 0, the continuation condition is d < 10, and the action-after-each-iteration is sum += sum + d. The loop body is d += 1. This code is correct in syntax. d is initially 0 and d += 0.1 adds 0.1 to d in each iteration. Eventually d will be greater than or equal to 10. So the loop will terminate. The correct answer for this question is (D) The program compiles and runs fine.