Remove All Elements from Java TreeSet Example

package com.javaguides.collections.treesetexamples; import java.util.TreeSet; public class RemoveTreeSetElementsExample { public static void main(String[] args) { TreeSet < Integer > numbers = new TreeSet < > (); numbers.add(10); numbers.add(15); numbers.add(20); numbers.add(25); numbers.add(30); numbers.add(42); numbers.add(49); numbers.add(50); System.out.println("numbers TreeSet : " + numbers); // Remove an element from the TreeSet numbers.clear(); System.out.println("After clear() method -> " + numbers); } }

Output

numbers TreeSet : [10, 15, 20, 25, 30, 42, 49, 50] After clear() method -> []