While Loop Array Indexing Error

Question

Consider the following code segment. Assume that `arr` is a non-empty `int` array.

```java
int sum = arr[0], i = 0;
while (i < arr.length) {
    i++;
    sum += arr[i];
}
```

Which of the following best describes the result of executing the code segment?

Accepted Answer

A run-time error will occur.

Answer

Sum of arr[1], arr[2], ..., arr[arr.length-1] will be stored in sum.

Answer

Sum of arr[0], arr[1], ..., arr[arr.length] will be stored in sum.

Answer

An infinite loop will occur.