HashSet : toString : Return String Representation Of the HashSet

public String toString()

Returns a string representation of this collection. It prints the elements in the order returned by the iterator.

import java.util.*;

class HashSetToString{
 public static void main(String args[]){
  HashSet<Integer> mySet = new HashSet<> ();
  
  for(int i=0; i < 5; i++)
   mySet.add(i);
   
  System.out.println("Elements in mySet are");
  System.out.println(mySet);
 } 
}

Output

Elements in mySet are
[0, 1, 2, 3, 4]

By default System.out.println method calls the toString method of particular Object.

https://self-learning-java-tutorial.blogspot.com/2014/03/tostring-return-string-representation.html

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