java: escribe un sistema de alquiler de coches
Requisitos del tema:
1. La tabla de información de alquiler de automóviles es la siguiente:
2. Tipos y atributos:
3. Efecto de la operación:
Realización de efectos:
realización de código:
1. Categoría de automóvil:
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. Categoría de automóvil:
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. Automóviles de pasajeros:
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. Gestión de vehículos:
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. Categoría de servicio comercial:
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. Categoría de prueba:
package homework.exam;
public class Test {
public static void main(String[] args) {
CarService cs = new CarService();
cs.rentcar();
}
}
El contenido de la entrada de la consola, elegí el tipo de cadena de entrada, no de acuerdo con las representaciones, si lo hace, ¡puede usar el operador ternario para lograrlo!
Cuando recibí este proyecto por primera vez, siempre sentí que no podía hacerlo, pero no quería admitir la derrota, así que intenté un poco y finalmente lo escribí. Todavía me siento como un pequeño logro, ¡ja ja! ¡Tu también deberías intentarlo!