java第二季综合练习(6-1)代码手记

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测试: 0.main 函数入口

package java2.chapter61;

import java.util.Scanner;

public class Test {
static boolean step1 = true;
static boolean step2 = true;
static boolean yesOrNo = false;
static int number = 0;
static Auto au = new Auto();
static CarAudi cA = new CarAudi("奥迪A4","小轿车",500,4);
static Auto cB = new CarBWM("宝马X1","小轿车",600,4);
static Truck gt = new Truck("依维柯01","货车",1000,2,10);
static Auto gp = new Pick_up("皮卡雪6","货车",450,4,1);
static Scanner sc = 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");
    input1Method();//调用方法1
    if(yesOrNo){
        System.out.println("\n您可租车的类型及价目表:");
        System.out.println("序号  汽车名称    租金        容量");
        System.out.println("1.  奥迪A4    500元/天    载人:4人");
        System.out.println("2.  宝马X1    550元/天    载人:4人");
        System.out.println("3.  依维柯01   1000元/天  载货:20吨");
        System.out.println("4.  皮卡雪6    450元/天    载人:4人 载货:2吨");
        System.out.println("\n请输入您要租车的序号:");
        Test.input2Method();//调用方法2,可以用本类名.方法 调用
        System.out.println("\n请输入您要租该车多少天");
        input3Method(); 
    }
}

static public void input1Method() { //是否租车
    while (step1) {
        String input1 = sc.next();
        switch (input1) {
        case "1":
            System.out.println("租车");
            step1 = false;
            yesOrNo = true;
            break;
        case "0":
            System.out.println("不租车");
            step1 = false;
            yesOrNo = false;
            break;
        default:
            System.out.println("输入无效,请重新输入");
            step1 = true;
            yesOrNo = false;
            break;
        }
    } 
}

static public void input2Method() { //选择车型
    while (step2) {
        String input2 = sc.next();
        switch (input2) {
        case "1": 
            cA.printPrice();
            number = cA.getPrice();
            step2 = false;
            break;
        case "2": 
            cB.printPrice();
            number = cB.getPrice();
            step2 = false;
            break;
        case "3": 
            gt.printPrice();
            number = gt.getPrice();
            step2 = false;
            break;
        case "4":
            gp.printPrice();
            number = gp.getPrice();
            step2 = false;
            break;
        default:
            System.out.println("输入有误,请重新输入");
            step2 = true;
            break;
        }
    }
}
static public void input3Method(){ 
    int input3 = sc.nextInt(); 
    number = input3*number;
    System.out.println("总价钱是:"+number+"元人民币");
}

}

父类:1.汽车

package java2.chapter61;
/*

汽车父类
*/
public class Auto {
private String type = "";//型号
private String name = "汽车";//类型
private int price = 10; //价格
private int num = 0;//载客人数
private int much = 0;//多少天

public String getTypt(){
return type;
}
public void setType(String type){
this.type = type;
}
public int getMuch(){
return much;
}
public void setMuch(int much){
this.much = much;
}
public int getNum(){
return num;
}
public void setNum(int num){
this.num = num;
}
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 void printPrice(){
System.out.println("型号:"+type);
System.out.println("类型:"+name);
System.out.println("租金:"+price+"元/天");
System.out.println("载客:"+num+"人");
}
}

接口: 2.货车接口

package java2.chapter61;
/*

货车接口
具有载货量的汽车
*/
public interface Goods_van {
void goodsVan();
}

子类: 3.奥迪小轿车

package java2.chapter61;
/*

奥迪小轿车,载客5人座
*/
public class CarAudi extends Auto {
public CarAudi(String type,String name,int price,int num) { //创建有参构造函数
super.setType(type);
super.setName(name);
super.setPrice(price);
super.setNum(num);
}
public void printPrice(){
super.printPrice();
}
}

子类:4.宝马小轿车

package java2.chapter61;
/*

宝马小轿车,载客5人座
*/
public class CarBWM extends Auto {
public CarBWM(String type,String name,int price,int num) {
super.setType(type);
super.setName(name);
super.setPrice(price);
super.setNum(num);
}
public void printPrice(){
super.printPrice();
}
}

子类:5.大卡车

package java2.chapter61;
/*

大卡车,载货10吨
*/
public class Truck extends Auto implements Goods_van{
int weight;
public Truck(String type,String name,int price,int num,int weight) {
super.setType(type);
super.setName(name);
super.setPrice(price);
super.setNum(num);
this.weight = weight;
}
@Override
public void goodsVan() {
System.out.println("载货:"+weight+"吨");
}
public void printPrice(){
super.printPrice();
this.goodsVan();
}
}

子类:6.皮卡车

package java2.chapter61;
/*

皮卡车,具有载客和载货功能
载客4人,载货1吨
*/
public class Pick_up extends Auto implements Goods_van{
int weight;
public Pick_up(String type,String name,int price,int num,int weight) {
super.setType(type);
super.setName(name);
super.setPrice(price);
super.setNum(num);
this.weight = weight;
}
@Override
public void goodsVan() {
System.out.println("载货:"+weight+"吨");
}
public void printPrice(){
super.printPrice();
this.goodsVan();
}
}