Data Structures, Algorithms, Java, Big O Notation, Searching And Sorting.
structure interface that stores different values (a HashSet that has order).[5] public class Main { public static void main(String[] args) { HashSet<String> cars = new HashSet<String>(); cars.add("Volvo"); cars.add("BMW"); cars.add("Ford"); cars.add("BMW"); cars.add("Mazda");