Java Technology Update

import java.util.ArrayList; import java.util.HashSet; import java.util.Set; public class ListToSet {  /**   * @author Amarjit Kumar   * @category interview questions   *   * Description: Convert List to set in java with example program   *   */  public static void main(String[] args) {   ArrayList<String> arrList= new ArrayList<>();   arrList.add("Java");   arrList.add("Java");   arrList.add("List to String");   arrList.add("Example Program");   Set<String> strSet = new HashSet<String>(arrList);   System.out.println(strSet);   System.out.println(arrList);  } } /*  * Java program to convert list to set. Convert ArrayList of string to HashSet  * in java example program How to convert List to Set in java Set<String> strSet  * = new HashSet<String>(arrList); HashSet having a constructor which will take  * list as an ar...