GeezerVison

package ArrayLists; import java.util.*; public class ArrayLists { public static void main(String[] args) { ArrayList cars = new ArrayList(); cars.add("Mercedes"); // adds elements to the ArrayList cars.add("Audi"); cars.add("Ferrari"); cars.add("Jaguar"); System.out.println(cars.isEmpty()); // prints true if list is empty or false if elements are present System.out.println(cars.size()); // prints the size / number of elements present in the list System.out.println(cars); // prints the entire list System.out.println(cars.get(0)); // prints element at 0th index of ArrayList cars.set(1, "Bugatti"); // changes value of the element at the specified index System.out.println(cars); // loop through the ArrayList for (int i = 0; i < cars.size(); i++) { System.out.println(cars.get(i)); } Collections.sort(cars); // sort method from collections class is used to sort the elements in the list alphabetically/numerically System.out.println(cars); cars.clear(); // clears the list System.out.println(cars); } }