How does the enhanced for statement work for arrays, and how to get an iterator for an array?

Question

Given the following code snippet:

int[] arr = {1, 2, 3};
for (int i : arr)
    System.out.println(i);

I have the following questions:

Answer 1

For (2), Guava provides exactly what you want as Int.asList(). There is an equivalent for each primitive type in the associated class, e.g., Booleans for boolean, etc.

    int[] arr={1,2,3};
    for(Integer i : Ints.asList(arr)) {
      System.out.println(i);
    }