import java.util.ArrayList;

public class Main {

public static void main(String[] args) {

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

myStringList.add("hello");

myStringList.add("goodbye");

System.out.println("Size: " + myStringList.size());

ArrayList<Integer> myIntList = new ArrayList<>();

myIntList.add(6);

myIntList.add(5);

int sum = 0;

for (int x : myIntList) {

sum += x;

}

System.out.println(sum);

// Vehicle[] vehicles = new Vehicle[3];

// vehicles[0] = new Truck();

// vehicles[1] = new Boat();

// vehicles[2] = new Plane();

// Fillable[] fillables = new Fillable[4];

// fillables[0] = vehicles[0];

// fillables[1] = vehicles[1];

// fillables[2] = vehicles[2];

// fillables[3] = new BottomlessPit();

// for (int item = 0; item < 10000; item++) {

// for (Fillable fillable : fillables) {

// if (!fillable.isFull()) {

// fillable.addItem();

// if (fillable.isFull()) {

// System.out.println("Filled " + fillable.getClass().getName());

// }

// }

// }

// }

// for (Fillable fillable : fillables) {

// if (!fillable.isFull()) {

// System.out.println("After 10,000 items, " +

// fillable.getClass().getName() + " is still hungry for more!");

// }

// }

}

}