public class FuelUpgrade extends TrainUpgrade
train| Constructor and Description |
|---|
FuelUpgrade(Train train) |
| Modifier and Type | Method and Description |
|---|---|
void |
addUpgrade() |
void |
undoUpgrade() |
getCostpublic FuelUpgrade(Train train)
public void addUpgrade()
addUpgrade in class TrainUpgradepublic void undoUpgrade()
undoUpgrade in class TrainUpgrade