Java LinkedHashSet class provides following API's to remove element or elements from Set in Java:

• remove(Object o)
• removeAll(Collection<?> c)
• removeIf(Predicate<? super Integer> filter)
• clear()

Remove Element from LinkedHashSet Example

package com.javaguides.collections.linkedhashsetexamples; import java.util.ArrayList; import java.util.LinkedHashSet; import java.util.List; import java.util.Set; public class LinkedHashSetRemoveExample { public static void main(String[] args) { Set < Integer > numbers = new LinkedHashSet < > (); numbers.add(2); numbers.add(3); numbers.add(4); numbers.add(5); numbers.add(6); numbers.add(7); numbers.add(8); numbers.add(9); numbers.add(10); System.out.println("numbers : " + numbers); // Remove an element from a LinkedHashSet boolean isRemoved = numbers.remove(10); System.out.println("After remove(10) => " + numbers); // Remove all elements belonging to a given collection from a LinkedHashSet List < Integer > perfectSquares = new ArrayList < > (); perfectSquares.add(4); perfectSquares.add(9); numbers.removeAll(perfectSquares); System.out.println("After removeAll(perfectSquares) => " + numbers); // Remove all elements matching a given predicate numbers.removeIf(num - > num % 2 == 0); System.out.println("After removeIf() => " + numbers); // Remove all elements from LinkedHashSet (clear it completely) numbers.clear(); System.out.println("After clear() => " + numbers); } }

Output

numbers : [2, 3, 4, 5, 6, 7, 8, 9, 10] After remove(10) => [2, 3, 4, 5, 6, 7, 8, 9] After removeAll(perfectSquares) => [2, 3, 5, 6, 7, 8] After removeIf() => [3, 5, 7] After clear() => []

Reference

Collection Framework LinkedHashSet