Check if a particular element exists in Java HashSet

      

import java.util.HashSet;

public class Main {
  public static void main(String[] args) {
    HashSet<Integer> hSet = new HashSet<Integer>();

    hSet.add(new Integer("1"));
    hSet.add(new Integer("2"));
    hSet.add(new Integer("3"));

    System.out.println(hSet.contains(new Integer("3")));
  }
}

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Check if a particular element exists in Java HashSet : HashSet « Collections Data Structure « Java

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