Breaking News: Grepper is joining You.com. Read the official announcement!

Briefly explain CopyOnwriteArraylist. Can we perform remove operation on CopyOnwriteArraylist while iterating?

Pragya Keshap answered on February 22, 2023 Popularity 1/10 Helpfulness 1/10

answer Briefly explain CopyOnwriteArraylist. Can we perform remove operation on CopyOnwriteArraylist while iterating?

Briefly explain CopyOnwriteArraylist. Can we perform remove operation on CopyOnwriteArraylist while iterating?

Comment

Iterate over the collection choosing all the elements you want to delete and putting those in a temporary collection. After you finish iteration remove all found elements from the original collection using method removeAll.

public class RemoveWhileIteratingCopyOnWriteArrayList {

	public static void main(String[] args) {

		// creating CopyOnWriteArrayList of type String
		CopyOnWriteArrayList<String> cowalStars =
				new CopyOnWriteArrayList<>();

		// adding elements to CopyOnWriteArrayList
		cowalStars.add("Super Star");
		cowalStars.add("Ultimate Star");
		cowalStars.add("Rock Star");
		cowalStars.add("Little Star");

		System.out.println("Iterating using enhanced for-loop:\n");

		// iterating CopyOnWriteArrayList using enhanced for-loop
		for(String star : cowalStars) {
			System.out.println(star);
		}
		System.out.println("\n1st: Iteration of COWAL "
				+ "completed... !!\n\n");

		System.out.println("\n\n2nd: Iterating and removing:\n");

		// iterating CopyOnWriteArrayList using Iterator
		Iterator<String> itr = cowalStars.iterator();
		while(itr.hasNext()){

			String star = itr.next();

			if(star.contains("Super")){
				itr.remove();
			}
			else{
				System.out.println(star);
			}
		}
	}
}

https://www.benchresources.net/copyonwritearraylist-with-remove-operation-in-java/

Popularity 1/10 Helpfulness 1/10 Language java

Source: Grepper

Tags: explain java operation

Link to this answer
Share Copy Link

Contributed on Feb 22 2023

Pragya Keshap

0 Answers Avg Quality 2/10

Briefly explain CopyOnwriteArraylist. Can we perform remove operation on CopyOnwriteArraylist while iterating?

Contents

More Related Answers

Briefly explain CopyOnwriteArraylist. Can we perform remove operation on CopyOnwriteArraylist while iterating?

Grepper

Documentation

Social

Legal

Contact

Oops, You will need to install Grepper and log-in to perform this action.