Are these two constructs equivalent?

    char[] arr = new char[5];
    for (char x : arr) {
        // code goes here
    }

Compared to:

    char[] arr = new char[5];
    for (int i = 0; i < arr.length; i++) {
        char x = arr[i];
        // code goes here
    }

That is, if I put exactly the same code in the body of both loops (and they compile), will they behave exactly the same???

Full disclaimer: this was inspired by another question (Java: are these 2 codes the same). My answer there turned out not to be the answer, but I feel that the exact semantics of Java for-each has some nuances that needs pointing out.