Java

好的，以下是使用Java实现的程序代码：

import java.util.Scanner;

class Transport {
    private int wheelNum;
    private double emptyWeight;

    Transport(int wheelNum, double emptyWeight) {
        this.wheelNum = wheelNum;
        this.emptyWeight = emptyWeight;
    }

    public int getWheelNum() {
        return wheelNum;
    }

    public double getEmptyWeight() {
        return emptyWeight;
    }
}

class Car extends Transport {
    private int passengerNum;

    Car(int wheelNum, double emptyWeight, int passengerNum) {
        super(wheelNum, emptyWeight);
        this.passengerNum = passengerNum;
    }

    public int getPassengerNum() {
        return passengerNum;
    }

    public double getTotalWeight() {
        return getEmptyWeight() + 60 * passengerNum;
    }

    public String toString() {
        return "几轮小车，共载" + passengerNum + "人，总重" + getTotalWeight() + "kg";
    }
}

class Truck extends Transport {
    private int passengerNum;
    private double goodsWeight;

    Truck(int wheelNum, double emptyWeight, int passengerNum, double goodsWeight) {
        super(wheelNum, emptyWeight);
        this.passengerNum = passengerNum;
        this.goodsWeight = goodsWeight;
    }

    public int getPassengerNum() {
        return passengerNum;
    }

    public double getGoodsWeight() {
        return goodsWeight;
    }

    public double getTotalWeight() {
        return getEmptyWeight() + 60 * passengerNum + goodsWeight;
    }

    public String toString() {
        return "几轮货车，共载" + passengerNum + "人，载货" + goodsWeight + "kg，总重" + getTotalWeight() + "kg";
    }
}

public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int wheelNum = scanner.nextInt();
        double emptyWeight = scanner.nextDouble();
        int passengerNum = scanner.nextInt();
        double goodsWeight = scanner.nextDouble();
        String type = scanner.next();
        if (type.equals("小车")) {
            Car car = new Car(wheelNum, emptyWeight, passengerNum);
            System.out.println(car);
        } else if (type.equals("货车")) {
            Truck truck = new Truck(wheelNum, emptyWeight, passengerNum, goodsWeight);
            System.out.println(truck);
        }
        scanner.close();
    }
}

您可以将以上代码保存为Main.java文件并编译运行。