moodle.umass.edu podle at UMass Amherst Consider the Vehicle and Truck classes: public class Vehicle String makerName; String model String color: public Vehicle (S

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Question

moodle.umass.edu podle at UMass Amherst Consider the Vehicle and Truck classes: public class Vehicle String makerName; String model String color: public Vehicle (String make, String model, String color) makerName = make; this model = model: this.color color, public String getMake(){ return makerName:) public String get Model (return model:) public String getColor(){return color:) public String toString{ return maker Name", "model"; } // end class import java.util.ArrayList; public class Truck extends Vehicle int payloadCapacity: color:) public Truck..............) public int getPayloadCap({return payloadCapacity:) public String toString..........) Write the static getHeaviestDuty TruckByColor method for the Truck class that takes a String parameter, targetColor, and an ArrayList of Truck objects and returns the Truck object that has the highest payload capacity that matches the target color. The method returns null if there is no Truck that matches the targetColor in the list. Assume the list has length >=0; Example: Executing this code: ArrayList trucks new ArrayList(); trucks.add(new Truck("Ford", "F150", "red", 1520)); trucks.add(new Truck("Chevy, "Silverado", "silver", 1800)); trucks.add(new Truck("Toyota", "Tacoma", "white", 1450)); trucks.add(new Truck("Jeep", "Gladiator", "red", 1420)); Truck bestTruck Truck.getHeaviestDutyTruckByColor("red", trucks); System.out.println(best Truck); -would result in this printed to the console: Ford, F150, red, 1520 Enter your complete getHeaviestDuty TruckByColor method definition below. a > <

Expert Answer

public class Vehicle {
    String makerName;
    String model;
    String color;

    public Vehicle(String make, String model, String color) {
        this.makerName = make;
        this.model = model;
        this.color = color;
    }

    public String getMake() {
        return makerName;
    }

    public String getModel() {
        return model;
    }

    public String getColor() {
        return color;
    }

    @Override
    public String toString() {
        return makerName +", "+model+", "+color;
    }
}

import java.util.ArrayList;

public class Truck extends Vehicle{
    int payloadCapacity;

    public Truck(String make, String model, String color, int payloadCapacity) {
        super(make, model, color);
        this.payloadCapacity = payloadCapacity;
    }

    public int getPayloadCapacity() {
        return payloadCapacity;
    }

    @Override
    public String toString() {
        return super.toString()+", "+payloadCapacity;
    }

    public static Truck getHaviestDutyTruckByColor(String targetColor, ArrayList<Truck> trucks){
        Truck truck = null;
        // initialize the variable with min value
        int maxCapacity = Integer.MIN_VALUE;
        for(Truck t: trucks){ // looping through trucks
            if(t.getColor().equals(targetColor)){ // comparing the target color
                if(t.payloadCapacity > maxCapacity){ // comparing capacity with maxcapacity
                    truck = t;
                    maxCapacity = t.payloadCapacity;
                }
            }
        }
        return truck;
    }
}

// ---------------------TEST CODE -----------------------------

import java.util.ArrayList;

public class VehicleMain {
    public static void main(String[] args) {
        ArrayList<Truck> trucks = new ArrayList<Truck>();
        trucks.add(new Truck("Ford", "F150", "red", 1520));
        trucks.add(new Truck("Chevy", "Silverado", "silver", 1800));
        trucks.add(new Truck("Toyota", "Tacoma", "white", 1450));
        trucks.add(new Truck("Jeep", "Gladiator", "red", 1420));
        Truck bestTruck = Truck.getHaviestDutyTruckByColor("red", trucks);

        System.out.println(bestTruck);
    }
}

// OUT

$L. Pigall T11CS JAVAJUK 11..01\nFord, F150, red, 1520\n$