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34 lines
1.4 KiB
34 lines
1.4 KiB
public class Testcar { public static void main(String[] args) {
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// 1. 创建3个Car对象（使用不同构造方法）
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Car car1 = new Car("京A12345", "丰田", "凯美瑞", 280.0);
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Car car2 = new Car("沪B67890", "本田", "雅阁"); // 默认日租金300
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Car car3 = new Car("粤C24680", "大众", "帕萨特", 320.0);
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// 2. 输出所有车辆信息
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System.out.println("===== 初始车辆信息 =====");
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car1.displayInfo();
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car2.displayInfo();
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car3.displayInfo();
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// 3. 测试租车/还车业务
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System.out.println("===== 测试租车/还车 =====");
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car1.rentCar(); // 正常租车
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car1.rentCar(); // 重复租车（提示错误）
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car1.returnCar(); // 正常还车
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car1.returnCar(); // 重复还车（提示错误）
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// 4. 计算租金（5天）
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System.out.println("===== 计算租金 =====");
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double rent = car1.calculateRent(5);
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System.out.printf("京A12345 租用5天，总租金：%.2f元%n%n", rent);
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// 5. 测试非法日租金修改
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System.out.println("===== 测试非法租金修改 =====");
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car1.setDailyRent(-100); // 输入非法值，提示错误
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System.out.println("修改后日租金：" + car1.getDailyRent() + "元/天（保持原值）%n");
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// 6. 输出总车辆数（静态成员）
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System.out.println("===== 车辆总数 =====");
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System.out.println("当前系统共有车辆：" + Car.getTotalCars() + "辆");
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}
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}
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