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- public interface Vehicle {
- public double getVehicleWeight();
- }
- public class Car implements Vehicle{
- private final long carWeight;
- //constructor here...
- @Override
- public double getVehicleWeight() {
- return this.carWeight;
- }
- }
- TreeMap<String,Vehicle> vehicles = new TreeMap<String,Vehicle>();
- vehicles.put("AXK-KF1",new Car(...));
- System.out.println(vehicles.get("AXK-KF1").getVehicleWeight());
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