import java.util.ArrayList;

​

public class Main {

  public static void main(String[] args) {

    ArrayList<String> cars = new ArrayList<String>();

    cars.add("Volvo");

    cars.add("BMW");

    cars.add("Ford");

    cars.add("Mazda");

    System.out.println(cars.contains("BMW"));

    System.out.println(cars.contains("Toyota"));

  }

}

​