How to remove an element from ArrayList in Java?

There are multiple way to remove an element from ArrayList in Java.

From CopyOnWriteArrayList :-

First we create CopyOnWriteArrayList object with String type data.
Now we traverse each list elements one by one and storing in string.
Inside if condition, contains() method checks whether a string contains a sequence of characters.
If specific String found then call remove method to removing element from list.
Now print the list of elements.

Syntax :- public boolean contains(CharSequence chars)

From removeIf() and contains() method:-

First we create ArrayList object with String type data.
Now we call removeIf method to remove all elements.
Inside removeIf we call contains() method checks whether a string contains a sequence of given characters.
If specific String found then removeIf() method to removing element from list.
Now print the list of elements.

Syntax :- public boolean removeIf(Predicate filter)

From stream and filter method :-

First convert Arrays to list using Arrays.asList method.
Now get the Stream data from List using ArrayList.stream() method.
Inside filter method, contains() method checks whether a string contains a sequence of given characters and through not condition they will return false at specific condition.
Now collect all list of data from toList() method.
Print the list of elements.

From Method reference and removeIf() method :-

First we create ArrayList object with String type data and all elements.
Now we call removeIf method to remove all elements.
Inside removeIf() method we call internally equals method from method reference type to compare the given elements from list elements.
If it is equals,then they remove elements.
Now print the list of elements.

				
					import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.concurrent.CopyOnWriteArrayList;
import java.util.stream.Collectors;

public class RemoveElementFromList {

	public static void main(String[] args) {

		// from CopyOnWriteArrayList
		CopyOnWriteArrayList<String> listOne = new CopyOnWriteArrayList<String>();
		listOne.add("spring");
		listOne.add("servlet");
		listOne.add("javax");
		for (String k : listOne) {
			if (k.contains("x")) {
				listOne.remove(k);
			}
		}
		System.out.println("remove element from CopyOnWriteArrayList :-" + listOne);

		// from List and removeIf method
		List<String> listTwo = new ArrayList<String>();
		listTwo.add("exception");
		listTwo.add("hibernate");
		listTwo.add("servlet");
		listTwo.removeIf(e -> e.contains("v"));
		System.out.println("remove element from removeIf List method :-" + listTwo);

		// from stream and filter method
		List<String> listThree = Arrays.asList("collection", "javax", "thread");
		List<String> data = listThree.stream().filter(r -> !r.contains("x")).collect(Collectors.toList());
		System.out.println("remove element from stream java 8 :- " + data);

		// from stream and filter method
		List<String> list = new ArrayList<>();
		list.add("M");
		list.add("N");
		list.add("P");
		list.removeIf("N"::equals);
		System.out.println("from java 8 removeIf Method :- " + list);

	}

}

Output :-
remove element from CopyOnWriteArrayList :-[spring, servlet]
remove element from removeIf List method :-[exception, hibernate]
remove element from stream java 8 :- [collection, thread]
from java 8 removeIf Method :- [M, P]