Answers — Testdome Java Questions And

public void attachWagonFromLeft(int wagonId) wagons.addFirst(wagonId);

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abstract class BaseIceCream implements IceCream protected int scoops = 0; public void addScoop(String flavor) scoops++; public double getTotalPrice() return scoops * 1.5; public void attachWagonFromLeft(int wagonId) wagons