Iterate or loop LinkedList collection of String objects in java (with example)

• Linked list in java is a doubly-linked list.
• Insertion order is maintained in a linked list.
• LinkedList extends AbstractSequentialList class & implements List, Deque,  Cloneable, Serializable interfaces.
• LinkedList class is not thread safe.
  • In multi threaded environment, it should be synchronized externally.
• The iterators returned by LinkedList class’s iterator and listIterator methods are fail-fast.
• LinkedList class can contain duplicate elements.

We would like to iterate or loop through the linkedlist collection of String objects in java.

1. LinkedList collection class hierarchy:

2. Iterate or loop LinkedList collection of String objects in java (example)

package org.learn.collection.list.linkedlist;

import java.util.LinkedList;
import java.util.ListIterator;

public class DemoIterationArraylist {

	public static void main(String[] args) {
		LinkedList<String> linkedList = new LinkedList<>();
		linkedList.add("archery");
		linkedList.add("badminton");
		linkedList.add("canoe");
		linkedList.add("boxing");
		linkedList.add("diving");

		System.out.println("\nDemo: Iterate or loop LinkedList collection: ");
		demoIterateMethod(linkedList);
	}

	private static void demoIterateMethod(LinkedList<String> linkedList) {

		System.out.println("1. Iterating using forEachRemaining:");
		// Output of for loop:
		// golf diving archery 
		linkedList.forEach(element -> System.out.printf("%s ", element));

		System.out.println("\n2. Iterating linkedList using foreach loop:");
		// Output of for loop:
		// golf diving archery 
		for (String element : linkedList) {
			System.out.printf("%s ", element);
		}

		System.out.println("\n3. Iterating linkedList using iterator:");
		ListIterator<String> listIterator = linkedList.listIterator();
		// Output of while loop:
		// golf diving archery 
		while (listIterator.hasNext()) {
			System.out.printf("%s ", listIterator.next());
		}
		System.out.println("");
	}
}

3. Output: Iterate LinkedList collection of String objects (java /example)

Demo: Iterate or loop LinkedList collection: 
1. Iterating using forEachRemaining:
archery badminton canoe boxing diving 
2. Iterating linkedList using foreach loop:
archery badminton canoe boxing diving 
3. Iterating linkedList using list iterator:
archery badminton canoe boxing diving