Java编写汽车租赁系统

2个月前 ( 02-26 ) 3932阅读

来源:blog.csdn.net/weixin_44889894


题目要求:

1、汽车租赁信息表如下:2、类和属性:3、运行效果:

效果实现:

代码实现:

1、车类:

package homework.exam;public abstract class Vehicle { private String num; private String brand; private double rent; public String getNum() { return num; } public void setNum(String num) { this.num = num; } public String getBrand() { return brand; } public void setBrand(String brand) { this.brand = brand; } public double getRent() { return rent; } public void setRent(double rent) { this.rent = rent; } public Vehicle() { } //含参构造 public Vehicle(String num, String brand, double rent) { this.num = num; this.brand = brand; this.rent = rent; } @Override public String toString() { return "汽车{" + "车牌号='" + num + '\'' + ", 品牌='" + brand + '\'' + ", 日租金=" + rent + '}'; } public abstract double totalmoney(int days , double rent); public abstract boolean equals(Vehicle o);}

2、汽车类:

package homework.exam;public class Cars extends Vehicle{ private String type; public String getType() { return type; } public void setType(String type) { this.type = type; } public Cars(String brand,String type) { this.type = type; } public Cars(String num, String brand, double rent, String type) { super(num, brand, rent); this.type = type; } @Override public String toString() { return "Cars{" + "type='" + type + '\'' + '}'; } //计算小汽车的总租金 @Override public double totalmoney(int days, double rent) { if (days>7){ return days*rent*0.9; }else if (days>30){ return days*rent*0.8; }else if (days>150){ return days*rent*0.7; } return days*rent; } //重写equals方法 @Override public boolean equals(Vehicle o) { if (o instanceof Cars){ Cars cars= (Cars) o; return this.getType().equals(cars.getType())&&this.getBrand().equals(o.getBrand()); } return false; }}

3、客车类:

package homework.exam;public class Bus extends Vehicle { private String seat; public String getSeat() { return seat; } public void setSeat(String seat) { this.seat = seat; } public Bus(String num, String brand, double rent, String seat) { super(num, brand, rent); this.seat = seat; } //计算客车的租金 @Override public double totalmoney(int days, double rent) { if (days>=3){ return days*rent*0.9; }else if (days>=7){ return days*rent*0.8; }else if (days>=30){ return days*rent*0.7; }else if (days>=150){ return days*rent*0.6; } return days*rent; } //重写equals方法 @Override public boolean equals(Vehicle o) { return false; }}

4、车辆管理类:

package homework.exam;public class CarRent { //创建汽车数组,将汽车的信息放在数组中 public Cars[] carMake(){ Cars c1 = new Cars("京NY28588", "宝马", 800, "x6"); Cars c2 = new Cars("京CNY3284", "宝马", 600, "550i"); Cars c3 = new Cars("京NT37465", "别克", 300, "林荫大道"); Cars c4 = new Cars("京NT96928", "别克", 600, "GL8"); Cars[] arr1 ={c1,c2,c3,c4}; return arr1; } //创建客车数组,将汽车的信息放在数组中 public Bus[] busMake(){ Bus b1 = new Bus("京6566754", "金杯", 800, "16座"); Bus b2 = new Bus("京8696667", "金龙", 800, "16座"); Bus b3 = new Bus("京9696996", "金杯", 1500, "34座"); Bus b4 = new Bus("京8696998", "金龙", 1500, "34座"); Bus[] arr2={b1,b2,b3,b4}; return arr2; }}

5、业务服务类:

package homework.exam;import java.util.Scanner;public class CarService { public void rentcar(){ System.out.println("**********欢迎光临秋名山守望者汽车租赁公司**********"); Scanner sc = new Scanner(System.in); System.out.println("1,轿车 2,客车"); System.out.print("请输入您要租赁的汽车类型:"); int i = sc.nextInt(); CarRent carRent = new CarRent(); //创建车库对象 Cars[] cars = carRent.carMake(); //拿到轿车数组对象 Cars car=null; Bus[] buses = carRent.busMake(); //拿到客车数组对象 Bus bus=null; //判断用户选择的车型 if (i==1){ System.out.print("请选择你要租赁的汽车品牌:(1,别克 2,宝马)"); int i1 = sc.nextInt(); if (i1==1){ System.out.print("请输入你要租赁的汽车类型:(1,林荫大道 2,GL8 )"); }else { System.out.print("请输入你要租赁的汽车类型:(1,x6 2,550i )"); } String i2 = sc.next(); //遍历汽车数组,拿到用户选择的汽车 for (int j = 0; j < cars.length; j++) { if (cars[j].getType().equals(i2)){ //当选择的车的类型与数组中的匹配时 car=cars[j]; //将车赋值给car break; } } System.out.print("请输入你要租赁的天数:"); int days = sc.nextInt(); System.out.print("分配给你的汽车牌号是:"); System.out.println(car.getNum()); //获取汽车的车牌 double totalmoney =0; //调用total totalmoney = car.totalmoney(days, car.getRent()); //计算用户的租金 System.out.print("你需要支付的租赁分费用是:"); System.out.print(totalmoney); }else if (i==2){ System.out.print("请选择你要租赁的汽车品牌:(1,金龙 2,金杯)"); String i2 = sc.next(); System.out.print("请输入你要租赁的汽车座位数:(1,16座 2,34座)"); String i3 = sc.next(); //遍历客车数组,拿到用户选择的客车 for (int j = 0; j < buses.length; j++) { //当输入的客车的车牌和座位与数组中的相等,就选出用户选择的车 if (buses[j].getBrand().equals(i2)&&buses[j].getSeat().equals(i3)){ bus=buses[j]; //将选择的车辆赋值给bus break; } } System.out.print("请输入你要租赁的天数:"); int days = sc.nextInt(); System.out.print("分配给你的汽车牌号是:"); System.out.println(); System.out.println(bus.getNum()); //拿到用户选择的车牌号 double totalmoney = 0; //调用totalmoney方法 totalmoney=bus.totalmoney(days, bus.getRent()); //用用户输入的天数。来计算租金 System.out.print("你需要支付的租赁分费用是:"); System.out.print(totalmoney); } }}

6、测试类:

package homework.exam;public class Test { public static void main(String[] args) { CarService cs = new CarService(); cs.rentcar(); }}

控制台输入的内容,我选择的是输入字符串类型,没有按照效果图上,如果你做的话,你可以用三元运算符来实现哦!

PS:如果觉得我的分享不错,欢迎大家随手点赞、在看。
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