文章标题

package homeworks.www;
/**
 * 
 * 汽车类 (父类)
 * 描述： 客户一次租赁多辆不同品牌的不同型号的汽车若干天，计算总租金
 *                 轿车
 *  别克商务仓GL8(日租费600)  宝马550i(日租费500)   别克林荫大道 (日租费300)
 *                 客车
 *   16座以下(日租费800)   16座以上(日租费1500)                          
 *
 */
public abstract class MotoVehicle {
    private String no;//车牌号
    private String brand;//品牌(别克   宝马    金杯   金龙)
    /**
     * 
     * getter ,setter方法
     */
    public String getNo() {
        return no;
    }
    public void setNo(String no) {
        this.no = no;
    }
    public String getBrand() {
        return brand;
    }
    public void setBrand(String brand) {
        this.brand = brand;
    }
    /**
     * 构造方法
     */
    public MotoVehicle(){

    }
    public MotoVehicle(String no,String brand){
             this.brand=brand;
             this.no=no;
    }
    /**
     * 
     * @param days 租赁的天数
     * @return  返回租赁的费用
     * 定义抽象方法，子类重写
     */ 
    public abstract int calRent(int days);

}
package homeworks.www;

/**
 * 
 * 轿车类继承汽车类
 * 
 */
public final class Car extends MotoVehicle {
    private String type;//型号属性有商务舱GL8,550i, 林荫大道

    public String getType() {
        return type;
    }

    public void setType(String type) {
        this.type = type;
    }

    public Car() {
        super();
    }

    public Car(String no, String brand, String type) {
        super(no, brand);
        this.type = type;

    }

    /**
     * 重写父类抽象方法(轿车类计算租金)
     */
    public int calRent(int days) {
        int money=0;
        if (super.getBrand().equals("宝马")) {
            money=days*500;
        }else if (super.getBrand().equals("别克")&&type.equals("商务舱GL8")) {
            money=days*600;
        }else {
            money=days*300;
        }
         return money;
    }


}

package homeworks.www;
/**
 * 
 * 客车类继承汽车类
 *
 */
public final  class Bus extends MotoVehicle {
    private int seataCount;//座位数

    public int getSeataCount() {
        return seataCount;
    }

    public void setSeataCount(int seataCount) {
        this.seataCount = seataCount;
    }
    public Bus(){


    }

    public Bus(String no, String brand, int seataCount) {
        super(no, brand);
        this.seataCount = seataCount;
    }

    /**
     * 重写父类抽象方法(汽车类计算租金)
     */
    public int calRent(int days) {
        int money=0;
        if (seataCount<=16) {
            money=days*800;
        }else {
            money=days*1500;
        }
        return money;
    }


}

package homeworks.www;
/**
 * 
 * 顾客类(计算总租金)
 *
 */
public class Customer {
    public int calTotalRent(MotoVehicle motos[],int days){
        int sum=0;
        for (int i = 0; i < motos.length; i++) {
            sum+=motos[i].calRent(days);

        }
        System.out.println("总租金为："+sum);
        return sum;

    }
}

package homeworks.www;
public class TestM {
    public static void main(String[] args) {
        int days=5;
        MotoVehicle[] motos=new MotoVehicle[4];
        Customer customer=new Customer();
        motos[0]=new Car("京NY28588", "宝马", "550i");
        motos[1]=new Car("京NNN3284", "宝马", "550i");
        motos[2]=new Car("京NT4375", "别克", "林荫大道");
        motos[3]=new Bus("京5643765", "金龙", 34);
        customer.calTotalRent(motos, days);


    }
}