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import java.util.Arrays;
import java.util.HashSet;
import java.util.List;
import java.util.Set;


public class UsefulCodes {
  
  //Sets
  private static void hashSet(){
    String[] stuff = {"chocolate", "pizza","bread","pizza","rice","rice","bread","chocolate"};
    List<String> list = Arrays.asList(stuff);
    System.out.println(list);
    
    Set<String> set = new HashSet<>(list);
    System.out.println(set);
    // Sets have unique elements only !
  }
  
  // Main Method
  public static void main(String[] args) {
    hashSet();
  }
}