TreeSet : size : Remove Element from the Set

int size()

Returns the number of elements in the set, If this set contains more than Integer.MAX_VALUE elements, returns Integer.MAX_VALUE.

import java.util.*;
class TreeSetSize{
 public static void main(String args[]){
  TreeSet<Integer> mySet =new TreeSet<> ();
  
  /* Add elements to the set */
  mySet.add(1);
  mySet.add(-10);
  mySet.add(100);
  mySet.add(12);
  mySet.add(14);
  
  /* Display the set */
  System.out.println("Size Of the Set " +mySet.size());
 }
}

Output

Size Of the Set 5

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