毒打妻儿田教授
2019-01-16 13:48
Car.java
package com.dada.test;
public class Car {
private int id;
private String name;
private int price;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getPrice() {
return price;
}
public void setPrice(int price) {
this.price = price;
}
public Car(int id, String name, int price) {
super();
this.id = id;
this.name = name;
this.price = price;
}
}
GoodCar.java
package com.dada.test;
public class GoodCar extends Car {
private int goodcapacity;
public GoodCar(int id, String name, int price, int goodcapacity) {
super(id, name, price);
this.goodcapacity = goodcapacity;
}
public int getGoodcapacity() {
return goodcapacity;
}
public void setGoodcapacity(int goodcapacity) {
this.goodcapacity = goodcapacity;
}
}
GPCar.java
package com.dada.test;
public class GPCar extends Car {
private int goodcapacity;
private int peoplecapacity;
public GPCar(int id, String name, int price, int goodcapacity, int peoplecapacity) {
super(id, name, price);
this.goodcapacity = goodcapacity;
this.peoplecapacity = peoplecapacity;
}
public int getGoodcapacity() {
return goodcapacity;
}
public void setGoodcapacity(int goodcapacity) {
this.goodcapacity = goodcapacity;
}
public int getPeoplecapacity() {
return peoplecapacity;
}
public void setPeoplecapacity(int peoplecapacity) {
this.peoplecapacity = peoplecapacity;
}
}
PeopleCar.java
package com.dada.test;
public class PeopleCar extends Car {
private int peoplecapacity;
public PeopleCar(int id, String name, int price, int peoplecapacity) {
super(id, name, price);
this.peoplecapacity = peoplecapacity;
}
public int getPeoplecapacity() {
return peoplecapacity;
}
public void setPeoplecapacity(int peoplecapacity) {
this.peoplecapacity = peoplecapacity;
}
}
Test.java
package com.dada.test;
import java.util.Scanner;
import com.dada.test.*;
public class Test {
public static void main(String[] args) {
PeopleCar pc1 = new PeopleCar(1,"奥迪A4",500,4);
PeopleCar pc2 = new PeopleCar(2,"马自达6",400,4);
GPCar gpc = new GPCar(3,"皮卡雪6",450,2,4);
PeopleCar pc3 = new PeopleCar(4,"金龙",800,20);
GoodCar gc1 = new GoodCar(5,"松花江",400,4);
GoodCar gc2 = new GoodCar(6,"依维柯",1000,20);
Scanner sc = new Scanner(System.in);
boolean keep = true;
System.out.println("*********嗒嗒租车系统*********");
while(keep){
System.out.print("是否租用汽车1/0:");
if("0".equals(sc.next())){
System.out.println("*********系统已退出*********");
break;
}
System.out.println("您可租车的类型及价目表:");
System.out.println("1. 奥迪A4 500元/天 载人:4人\n" +"2. 马自达6 400元/天 载人:4人\n" +"3. 皮卡雪6 450元/天 载人:4人载货:2吨\n"+"4. 金龙 800元/天 载人:20人\n"+"5. 松花江 400元/天 载货:4吨\n"+"6. 依维柯 1000元/天 载货:20吨\n");
int peoplesum=0;
int goodsum=0;
int pricesum=0;
String carname="";
System.out.print("输入你租用车的数量:");
int carnum = sc.nextInt();
System.out.print("请输入你租用车的天数:");
int day =sc.nextInt();
for(int i=0;i<carnum;i++){
System.out.print("输入你租用第" + (i+1) + "俩车的id:");
int id = sc.nextInt();
if(id==1){
carname +=pc1.getName()+" ";
peoplesum += pc1.getPeoplecapacity();
pricesum += pc1.getPrice()*day;
}else if(id==2){
carname +=pc2.getName()+" ";
peoplesum += pc2.getPeoplecapacity();
pricesum += pc2.getPrice()*day;
}else if(id==3){
carname +=gpc.getName()+" ";
peoplesum += gpc.getPeoplecapacity();
goodsum += gpc.getGoodcapacity();
pricesum += gpc.getPrice()*day;
}else if(id==4){
carname +=pc3.getName()+" ";
peoplesum += pc3.getPeoplecapacity();
pricesum += pc3.getPrice()*day;
}else if(id==5){
carname +=gc1.getName()+" ";
goodsum += gc1.getGoodcapacity();
pricesum += gc1.getPrice()*day;
}else if(id==6){
carname +=gc2.getName()+" ";
goodsum += gc2.getGoodcapacity();
pricesum += gc2.getPrice()*day;
}else{
System.out.println("您输入的id有误!");
}
}
System.out.println("选择的车有:"+carname );
System.out.println("租金:"+pricesum);
System.out.println("载人量:"+peoplesum+"人");
System.out.println("载货量:"+goodsum+"吨");
}
}
}
你这个代码有一些问题
当你在选择是否租车的时候 没有考虑0/1之外的其他情况 比如输入3的话也会进入选车界面
当你输入要租的车辆序号时,如果输入一个错误的车辆序号,比如11,这时会提示输入错入,重新输入
就像这样,用户会少选择一辆车
请问一下,如果需要租用两种汽车,该肿么办?
//Car.java
public abstract class Car { public abstract String name(); public abstract int price(); public abstract int space(); }
//MannedCar.java
public class MannedCar extends Car { private String name; private int price; private int space; public MannedCar() { } MannedCar(String name, int price, int space) { this.name = name; this.price = price; this.space = space; } @Override public String name() { return name; } @Override public int price() { return price; } @Override public int space() { return space; } }
//PikaCar.java
public class PikaCar extends Car { private String name; private int price; private int space; public PikaCar(String name, double price, int space) { this.name = name; this.price = (int) price; this.space = space; } @Override public String name() { return name; } @Override public int price() { return price; } @Override public int space() { return space; } }
//CarryCargoCar.java
public class CarryCargoCar extends Car{ private String name; private int price; private int space; public CarryCargoCar(String name, double price, int space) { this.name = name; this.price = (int) price; this.space = space; } @Override public String name() { return name; } @Override public int price() { return price; } @Override public int space() { return space; } }
//Text.java
import java.util.Scanner;
public class Test { private static Scanner scannerInt = new Scanner(System.in); public static void main(String[] args) { System.out.println("欢迎使用答答租车系统:"); System.out.println("您是否要租车:1是 0否"); int choose = scannerInt.nextInt(); Car[] car = {new MannedCar("奥迪A4", 500, 4), new MannedCar("马自达6", 400, 4), new PikaCar("皮卡雪6", 450, 4), new MannedCar("金龙", 800, 20), new CarryCargoCar("松花江", 400, 4), new CarryCargoCar("依维柯", 1000, 20)}; switch (choose) { case 1: System.out.println("您可租车的类型及其价格目录表:"); System.out.println("序号\t汽车名称\t租金\t 容量"); for (int i = 1; i < 7; i++) { System.out.print(i + ".\t " + car[i - 1].name() + "\t " + car[i - 1].price() + "元/天" + "\t "); if (car[i - 1].name().equals("皮卡雪6")) { System.out.println("载人:" + 4 + " 载货:" + 2 + "吨"); } else if ((i - 1) == 0 || (i - 1) == 1 || (i - 1) == 3) { System.out.println("载人:" + car[i - 1].space() + "人"); } else if ((i - 1) == 4 || (i - 1) == 5) { System.out.println("载货:" + car[i - 1].space() + "吨"); } } System.out.println("请输入您要租汽车的数量:"); int number = scannerInt.nextInt(); Car[] num = new Car[number]; if (number != 0) { for (int i = 1; i <= number; i++) { System.out.println("请输入第" + i + "辆车的序号:"); int choice = scannerInt.nextInt(); if (choice < 1 || i > 6) { System.out.println("您输入的序号不存在,请重新输入!"); i--; } else { num[i - 1] = car[choice - 1]; } } double money = 0; System.out.println("请输入租车天数:"); int day = scannerInt.nextInt(); for (int i = 0; i < num.length; i++) { money = money + num[i].price(); } System.out.println("您的账单:"); System.out.println("***可载人的车有:"); int sum = 0; for (int i = 0; i < num.length; i++) { if (num[i].name().equals("奥迪A4") || num[i].name().equals("马自达6") || num[i].name().equals("金龙") || num[i].name().equals("皮卡雪6")) { System.out.print(num[i].name() + " "); if (num[i].name().equals("皮卡雪6")) { sum += 4; } else { sum = sum + num[i].space(); } } } for (int i = 0; i < num.length; i++ ) { if (num[i].name().equals("奥迪A4") || num[i].name().equals("马自达6") || num[i].name().equals("金龙") || num[i].name().equals("皮卡雪6")) { System.out.println("共载人:" + sum + "人"); break; } } System.out.println("***可载货的车有:"); for (int i = 0; i < num.length; i++) { if (num[i].name().equals("皮卡雪6") || num[i].name().equals("松花江") || num[i].name().equals("依维柯")) { System.out.print(num[i].name() + " "); if (num[i].name().equals("皮卡雪6")) { sum += 2; } else { sum = sum + num[i].space(); } } } for (int i = 0; i < num.length; i++) { if (num[i].name().equals("皮卡雪6") || num[i].name().equals("松花江") || num[i].name().equals("依维柯")) { System.out.println("共载货:" + sum + "吨"); break; } } double amount = money * day; System.out.println("***租车总价格:" + amount + "元"); } else { System.out.println("您没有选择任何车辆!"); } break; case 0: System.exit(0); break; default: System.out.println("您输入的选择不存在"); } } }
就只把输出语句里的代码,输出
Java入门第二季 升级版
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