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Text lesson

removeIf()

Example

Eliminate all even numbers from the list.

import java.util.LinkedList;

public class Main {

  public static void main(String[] args) {

    LinkedList<Integer> numbers = new LinkedList<Integer>();

    numbers.add(5);

    numbers.add(9);

    numbers.add(8);

    numbers.add(6);

    numbers.add(1);

    numbers.removeIf( n -> n % 2 == 0 );

    System.out.println(numbers);

Definition and Usage

The removeIf() method removes all elements from
the list that satisfy a specified condition. This condition can be expressed
through a lambda expression compatible with Java’s Predicate interface’s test() method.

Syntax

public boolean removeIf(Predicate condition)

Parameter Values

Parameter	Description
condition	Mandatory: A Predicate object or lambda expression that evaluates an item from the list.

Technical Details

Returns:

True if any items were removed from the list; otherwise, false.