Remove an element using collections.

Collections:

import java.util.*;

public class HashSetExample {
  public static void main(String [] args) {
   Scanner input=new Scanner(System.in);
   System.out.println("Enter elements: ");
    HashSet <String>set = new HashSet <String>();
    for(int i=1;i<=5;i++){
    String st=input.next();
    set.add(st);  
    }
    System.out.print("Which element do you want to remove: ");
    String element=input.next();
    set.remove(element);
    System.out.println("Hash Set data: ");
    Iterator iterator = set.iterator();  
    while (iterator.hasNext()){
      System.out.println(iterator.next());
    }
     }
}

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