Jun 4, 2024 · Method 1: Using for loop. Method 2: Using while loop. Method 3: Using for each loop. Method 4: Using Iterator. Method 5: Using Lambda expressions. Method 6: Using Enumeration interface. Now it is a further additive to the article as we are done with discussing all methods that can be used to iterate over elements.

Given a List<E> list object, I know of the following ways to loop through all elements: // Not recommended (see below)! E element = list.get(i); // 1 - can call methods of element. // 2 - can use 'i' to make index-based calls to methods of list. // ...

Oct 19, 2012 · I would perhaps rewrite your loop as: for (String s : contain) { if (s.contains(code)) { // found it } } to make use of the object iterators (the above assumes you have an ArrayList<String> ).

Loop through the elements of an ArrayList: Example public class Main { public static void main(String[] args) { ArrayList<String> cars = new ArrayList<String>(); cars.add("Volvo"); cars.add("BMW"); cars.add("Ford"); cars.add("Mazda"); for …

Jan 12, 2023 · The Java iterate through ArrayList programs. Learn how to retrieve values from ArrayList in Java using for loop, while loop, iterator and stream api.

In this guide, we covered various methods to iterate over an ArrayList in Java: Using For-Loop: Basic and flexible method. Using Enhanced For-Loop: Simplifies code and improves readability. Using Iterator: Allows element removal during iteration. Using ListIterator: Supports bidirectional traversal and modification of elements.

Apr 10, 2025 · In this article, we demonstrated the different ways to iterate over the elements of a list using the Java API. These options included the for loop, enhanced for loop, Iterator, ListIterator, and the forEach() method (included in Java 8). Then we learned how to use the forEach() method with Streams.

Dec 1, 2024 · One of the easiest way to iterate through an ArrayList is by using for loop: names.add("Chaitanya"); names.add("Rahul"); names.add("Aditya"); 2. Using an Enhanced for Loop (for-each) The enhanced for loop provides a simple and more readable way to iterate through all the elements in an ArrayList.

Mar 29, 2018 · List<Integer> arraylist = Arrays.asList(new Integer[10]); //Collections.fill(arraylist, new Integer(1)); System.out.println(arraylist); int i=0; for (Integer y : arraylist) { //System.out.println( (2+(y*2))); arraylist.set(i++, ((i*2))); }

Java Program to Iterate over an ArrayList. To understand this example, you should have the knowledge of the following Java programming topics: Java ArrayList; Java for Loop; Java for-each Loop; Java ListIterator Interface