Car door = new Car();
door.Open = "Ford"

Car door = new Car(); // new object, Car ("1 ref")
door.Open = "Ford"    // new object, String ("1 ref")

Car trunk = new Car (); // new object, Car ("1 ref")
trunk.Open = "Mustang"; // new object, String ("1 ref")
Car myCar = trunk;      // object in trunk/myCar same (now "2 ref")

Car[] model = new Car[2]; // new object, Car[] ("1 ref")
model[0] = new Car();     // new object, Car ("1 ref")
model[1] = new Car();     // new object, Car ("1 ref")

door = model[0];
myCar = door;

String x = "Foo";
String y = "Foo";