就算先这样吧，路过的大佬帮忙看看有没有优化的地方_(:з」∠)_
Car.clas //父类、抽象类
package cars;
public abstract class Car {
protected double price; //定义价格
protected String carname; //定义名称
public abstract String work();
}
MannedCar.class //载人车子类
package cars;
public class MannedCar extends Car {
private int people; //定义乘坐人数
public int getPeople() {
return people;
}
public void setPeople(int people) {
this.people = people;
}
public MannedCar(String carname, double price, int people) {
this.people = people;
this.price = price;
this.carname = carname;
}
@Override
public String work() {
// TODO 自动生成的方法存根
return carname + "\t\t" + price + "/天" + "\t\t" + "载人:" + people + "人";
}
}
CarryCar.class //货车子类
package cars;
public class CarryCar extends Car {
private double weight; //定义载重量
public double getWeight() {
return weight;
}
public void setWeight(double weight) {
this.weight = weight;
}
public CarryCar( String carname, double price, double weight) {
this.weight = weight;
this.price = price;
this.carname = carname;
}
@Override
public String work() {
// TODO 自动生成的方法存根
return carname + "\t\t" + price + "/天" + "\t\t" + "载货:" + weight + "吨";
}
}
DualCar.class //载人/货车 子类
package cars;
public class DualCar extends Car {
private int people; //定义乘坐人数
private double weight; //定义载重量
public int getPeople() {
return people;
}
public void setPeople(int people) {
this.people = people;
}
public double getWeight() {
return weight;
}
public void setWeight(double wewight) {
this.weight = wewight;
}
public DualCar( String carname, double price, int people, double weight) {
this.people = people;
this.weight = weight;
this.price = price;
this.carname = carname;
}
@Override
public String work() {
// TODO 自动生成的方法存根
return carname + "\t\t" + price + "/天" + "\t\t" + "载货:" + weight + "吨" + "\t\t" + "载人:" + people + "人";
}
}
BuyCar.class //调试
package cars;
import java.util.Scanner;
public class BuyCar {
public static void main(String[] args) {
Car[] cars = {
new MannedCar("奥德A4", 500, 6),
new MannedCar("大黄蜂", 950, 4),
new CarryCar("马自达", 400, 1.2),
new CarryCar("金龙", 450, 1.6),
new DualCar("松花江", 400, 2, 1.6),
new DualCar("伊维特", 510, 4, 2.4),
};
Scanner scan = new Scanner(System.in);
System.out.println("请选择你的服务： 0（退出）, 1 （租车服务）");
int choice = scan.nextInt();
if (choice == 1) {
System.out.println("**************可租用汽车表**************");
for (int i = 0; i < cars.length; i++) {
System.out.println("序号： " + i + "\t" + cars[i].work());
}
System.out.print("请输入你要购买的数量: ");
int num = scan.nextInt();
// 判断购买数量是否非法
if (num <= 0) {
System.out.println("错误!");
System.exit(0);
}else{
int[] chose_cars = new int[num]; //存储选择的车辆序号数组
double allprice = 0; //存储总价钱
for (int i = 0; i < num; i++) {
System.out.print("请输入你要购买车辆的序号： ");
int chose_car = scan.nextInt();
if (chose_car < 0 || chose_car >= cars.length) {
i--;
System.out.println("不存在此车辆");
continue;
}else{
chose_cars[i] = chose_car;
}
}
System.out.print("请输入租借天数: ");
int day = scan.nextInt();
System.out.println("**************您选择的车辆列表**************");
for(int chose_car: chose_cars){
allprice += cars[chose_car].price * day; //计算总价钱
System.out.println("序号： " + chose_car + "\t" +cars[chose_car].work());
}
System.out.println("您总共需要支付: " + allprice);
}
}else {
System.out.println("您已退出服务！");
System.exit(0);
}
scan.close();
}
}
附运行结果
