public static void main(String[] args) {

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

    list.add("A1");
    list.add("A2");
    list.add("A3");
    list.add("A4");
    list.remove(0);

for (int i = 0; i < list.size(); i++) {
System.out.println(list.get(i));
}
System.out.println("=======================================");

for (String array : list) {
System.out.println(array);
}
 System.out.println("=======================================");      

   
list.forEach((item) -> {
System.out.println(item);
});
System.out.println("=======================================");  

   
 Iterator iterator = list.iterator();
while (iterator.hasNext()) {
String string = (String) iterator.next();
System.out.println(string);
}
System.out.println("======================================="); 

 list.stream().forEach(System.out::println);
System.out.println("======================================="); 

 list.parallelStream().forEach(System.out::println);
}