Iterating Over a List with a For-Each Loop

The for-each loop examines the values of the list in order one at a time. The expression is defined in the following format: for (TypeOfVariable nameOfVariable: nameOfList), where TypeOfVariable is the list’s element type, and nameOfVariable is the variable that is used to store each value in the list as we go through it.

ArrayList<String> teachers = new ArrayList<>();

teachers.add("Eva");
teachers.add("Simon");
teachers.add("Tom");

for (String teacher: teachers) {
    System.out.println(teacher);
}

The for-each loop described above hides some parts of the for-loop we practiced earlier. The for-each loop would look like this if implemented as a for-loop:

ArrayList<String> teachers = new ArrayList<>();

teachers.add("Eva");
teachers.add("Simon");
teachers.add("Tom");
for (int i = 0; i < teachers.size(); i++) {
    String teacher = teachers.get(i);
    // contents of the for each loop:
    System.out.println(teacher);
}

Reference:

Foreach
The For-Each Loop

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