java/W3/com/rental/TestCar.java

package com.rental;
public class TestCar {
    public static void main(String[] args) {
        // 构造方法
        Car car1 = new Car("A123", "Toyota", "Camry", 300);
        Car car2 = new Car("B456", "Honda", "Civic"); // 默认租金
        Car car3 = new Car("C789", "BMW", "X5", -100); // 非法租金测试
        // 输出车辆信息
        System.out.println("所有车辆信息:");
        displayInfo(car1);
        displayInfo(car2);
        displayInfo(car3);
        // 流程测试
        System.out.println("租车流程测试:");
        car1.rentCar();   // 第一次租
        car1.rentCar();   // 再租
        car1.returnCar(); // 第一次还
        car1.returnCar(); // 再还
        //计算租金
        System.out.println("租金计算:");
        double rent = car2.calculateRent(5);
        System.out.println("car2 租用5天费用: " + rent);
        // 非法租金
        System.out.println("非法租金测试:");
        car2.setdailyRent(-100); // 给一个非法值
        System.out.println("car2 当前日租金: " + car2.getDailyRent());

        // 输出总车辆数
        System.out.println("总车辆数");
        System.out.println("Total Cars: " + Car.getTotalCars());
    }
    //输出车辆信息
    public static void displayInfo(Car car) {
        System.out.println("车牌号: " + car.getLicensePlate());
        System.out.println("品牌: " + car.getBrand());
        System.out.println("型号: " + car.getModel());
        System.out.println("日租金: " + car.getDailyRent());
        System.out.println("是否已租出: " + (car.isRented() ? "是" : "否"));
    }
}