Java/com/study/demo4/TestTransport.java

package com.study.demo4;

public class TestTransport {
  public static void main(String[] args) {
    // 测试自行车配送
    DeliveryFeeCalculator bike = new BikeDeliveryCalculator();
    System.out.println("自行车配送 3km: ¥" + bike.calculateFee(3));
    System.out.println("自行车配送 8km: ¥" + bike.calculateFee(8));

    // 测试汽车配送
    DeliveryFeeCalculator car = new CarDeliveryCalculator();
    System.out.println("汽车配送 3km: ¥" + car.calculateFee(3));
    System.out.println("汽车配送 8km: ¥" + car.calculateFee(8));

    // 对比不同距离的费用
    System.out.println("\n费用对比:");
    for (int km = 1; km <= 10; km++) {
      System.out.printf("%dkm: 自行车¥%.1f, 汽车¥%.1f%n",
          km, bike.calculateFee(km), car.calculateFee(km));
    }
  }
}