java第二季项目设计,有爱自取哈哈，可以交流。

//Application类
package com.imooc.java3;
import java.util.*;

public class Application {
public static Car[] cars ={new Track(“东风”,800.0f,30.0f),new Audi(“奥迪Q7”,400.0f,5)
,new Piup(“皮卡”,500.0f,2,10.0f)};
public static int len=cars.length;

private static boolean isNeeded(){
    System.out.println("您是否要租车：1.是 0.否 ");
    @SuppressWarnings("resource")
    Scanner in =new Scanner(System.in);
    int x= in.nextInt();
    if(x==1) return true;
    else return false;
}

public static void main(String[] args) {
    System.out.println("欢迎使用答答租车：");
    boolean flag =isNeeded();
    if(flag){
        showCar();
        chooseCar();
    }
    else{
        System.exit(0);
    }
}
private static void showCar() {
    System.out.println("您可租车的类型及项目表：\n序号\t汽车名称 \t租金\t\t容量");
    for(int i=0;i<len;i++){ 
        if(cars[i].getName()=="皮卡"){
            System.out.println(i+1+".\t"+cars[i].getName()+"\t"+cars[i].getPrice()+"元/天\t载人:"+cars[i].getCpeople()+"人  载重："+cars[i].getCthing()+"吨");
        }else if(cars[i].getName()=="东风"){
            System.out.println(i+1+".\t"+cars[i].getName()+"\t"+cars[i].getPrice()+"元/天\t载重:"+cars[i].getCthing()+"吨");
        }
        else{
            System.out.println(i+1+".\t"+cars[i].getName()+"\t"+cars[i].getPrice()+"元/天\t载人:"+cars[i].getCpeople()+"人");
        }
    }
}

private static void chooseCar(){
    int count[] = {1,2,3};
    @SuppressWarnings("unused")
    int sum=0;;
    for(int i=0;i<len;i++){
        count[i]=0;;
    }
    System.out.println("请输入租车的数量：");
    @SuppressWarnings("resource")
    Scanner in1 =new Scanner(System.in);
    int n = in1.nextInt();
    while(n!=0){
        System.out.println("请输入租车的序号：");
        @SuppressWarnings("resource")
        Scanner in2 =new Scanner(System.in);
        int x= in2.nextInt();
        if(x==1){
            count[0]++;
        }else if(x==2){
            count[1]++;
        }
        else{
            count[2]++;
        }
        n--;
    }
    System.out.println("请输入租车的天数:");
    @SuppressWarnings("resource")
    Scanner in2 =new Scanner(System.in);
    int day = in2.nextInt();
    System.out.println("车型\t数量\t租车天数\t单价\t租金");
    for(int i=0;i<len;i++){
        if(count[i]!=0){
            System.out.println(cars[i].getName()+" \t"+count[i]+" \t"+day+" \t"+cars[i].getPrice()+"元\t"+calMoney(count[i],day)*cars[i].getPrice()+"元");
            sum+=calMoney(count[i],day)*cars[i].getPrice();
        }
        else continue;
    }
    System.out.println("总金额为："+sum+"元");
}
public static int calMoney(int count,int day){
    return count*day;
}

}
//Car类
package com.imooc.java3;

public class Car{
private String name;
private float price;
private int cpeople;
private float cthing;

public int getCpeople() {
    return cpeople;
}
public void setCpeople(int cpeople) {
    this.cpeople = cpeople;
}
public String getName() {
    return name;
}
public void setName(String name) {
    this.name = name;
}
public float getPrice() {
    return price;
}
public void setPrice(float price) {
    this.price = price;
}
public float getCthing() {
    return cthing;
}
public void setCthing(float cthing) {
    this.cthing = cthing;
}

}
//卡车类Track
package com.imooc.java3;

public class Track extends Car {
private String name;
private float price;
private float cthing;
public Track(String name, float price, float cthing) {
this.name=name;
this.price=price;
this.cthing=cthing;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public float getPrice() {
return price;
}
public void setPrice(float price) {
this.price = price;
}
public float getCthing() {
return cthing;
}
public void setCthing(float cthing) {
this.cthing = cthing;
}
}
//奥迪类Audi
package com.imooc.java3;

public class Audi extends Car {
private String name;
private float price;
private int cpeople;
public Audi(String name, float price, int cpeople) {
this.name=name;
this.price=price;
this.cpeople=cpeople;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public float getPrice() {
return price;
}
public void setPrice(float price) {
this.price = price;
}
public int getCpeople() {
return cpeople;
}
public void setCpeople(int cpeople) {
this.cpeople = cpeople;
}
}
//皮卡类Piup
package com.imooc.java3;

public class Piup extends Car {
private String name;
private float price;
private int cpeople;
private float cthing;
public Piup(String name, float price, int cpeople,float cthing){
this.name=name;
this.price=price;
this.cpeople=cpeople;
this.cthing=cthing;
}
public int getCpeople() {
return cpeople;
}
public void setCpeople(int cpeople) {
this.cpeople = cpeople;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public float getPrice() {
return price;
}
public void setPrice(float price) {
this.price = price;
}
public float getCthing() {
return cthing;
}
public void setCthing(float cthing) {
this.cthing = cthing;
}
}