zhengchangtx
2015-03-06 11:45
package com.dada; public abstract class Auto { public String name; public int price; public abstract void showInfo(); }
package com.dada; public class Car extends Auto{ public int capacity; public Car(String name,int price,int capacity) { this.name = name; this.price = price; this.capacity = capacity; } @Override public void showInfo() { // TODO Auto-generated method stub System.out.println(" "+name+" "+price+"元/天 "+"载人:"+capacity+"人"); } }
package com.dada; public class Truck extends Auto{ public int loaded; public Truck(String name,int price,int loaded) { // TODO Auto-generated constructor stub this.name = name; this.price = price; this.loaded = loaded; } @Override public void showInfo() { // TODO Auto-generated method stub System.out.println(" "+name+" "+price+"元/天 "+"载货:"+loaded+"吨"); } }
package com.dada; public class Pickup extends Auto { public int capacity; public int loaded; public Pickup(String name, int price, int capacity, int loaded) { // TODO Auto-generated constructor stub this.name = name; this.price = price; this.capacity = capacity; this.loaded = loaded; } @Override public void showInfo() { // TODO Auto-generated method stub System.out.println(" "+name+" "+price+"元/天 "+"载人:"+capacity+"人 载货:"+loaded+"吨"); } }
package com.dada; import java.util.Scanner; public class main { public static void main(String[] args) { Auto[] auto = new Auto[6]; auto[0] = new Car("奥迪A4", 500, 4); auto[1] = new Car("马自达6", 400, 4); auto[2] = new Pickup("皮卡雪6", 450, 4, 2); auto[3] = new Car("金龙 ",800,20); auto[4] = new Truck("松花江", 400, 4); auto[5] = new Truck("依维柯", 1000, 20); 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"); Scanner input = new Scanner(System.in); int choice = input.nextInt(); if(choice == 0) { System.out.println("感谢使用答答租车系统!"); } else { System.out.println("您可租车的类型及其价目表:"); System.out.println("序号 汽车名称 租金 容量"); for(int i=0; i<6; i++) { System.out.print(i+". "); auto[i].showInfo(); } System.out.println("请输入您要租汽车的数量:"); int num = input.nextInt(); Auto[] choiceAuto = new Auto[num]; for(int i=0; i<num; i++) { System.out.println("请输入第"+i+"辆车的序号:"); int id = input.nextInt(); choiceAuto[i] = auto[id]; } System.out.println("请输入租车天数"); int days = input.nextInt(); System.out.println("您的账单:"); System.out.println("***可载人的车有:"); for(int i=0; i<num; i++) { if(choiceAuto[i] instanceof Car || choiceAuto[i] instanceof Pickup) { System.out.print(choiceAuto[i].name + " "); } } System.out.println("共载人:"+totalCapacity(choiceAuto, choiceAuto.length)+"人"); System.out.println('\n'+"***可载货的车有:"); for(int i=0; i<num; i++) { if(choiceAuto[i] instanceof Truck || choiceAuto[i] instanceof Pickup) { System.out.print(choiceAuto[i].name + " "); } } System.out.println("共载货:"+totalLoaded(choiceAuto, choiceAuto.length)+"吨"); System.out.println("租车的总价格:"+totalPrice(choiceAuto, choiceAuto.length,days)); } } private static int totalLoaded(Auto[] auto,int num) { int sum = 0; for(int i=0; i<num; i++) { if(auto[i] instanceof Truck) { sum = sum + ((Truck)auto[i]).loaded; } else if(auto[i] instanceof Pickup) { sum = sum + ((Pickup)auto[i]).loaded; } else { continue; } } return sum; } private static int totalCapacity(Auto[] auto,int num) { int sum = 0; for(int i=0; i<num; i++) { if(auto[i] instanceof Car) { sum = sum + ((Car)auto[i]).capacity; } else if(auto[i] instanceof Pickup) { sum = sum + ((Pickup)auto[i]).capacity; } else { continue; } } return sum; } private static int totalPrice(Auto[] auto,int num, int days) { int sum = 0; for(int i=0; i<num; i++) { sum = sum + auto[i].price; } return sum*days; } }
package com.dada; public class Truck extends Auto{ public int loaded; public Truck(String name,int price,int loaded) { // TODO Auto-generated constructor stub this.name = name; this.price = price; this.loaded = loaded; } @Override public void showInfo() { // TODO Auto-generated method stub System.out.println("姓名:"+name+"价格:"+price+"元/天"+"载货:"+loaded+"吨"); } }
package com.dada; public class Car extends Auto{ public int capacity; public Car(String name,int price,int capacity) { this.name = name; this.price = price; this.capacity = capacity; } @Override public void showInfo() { // TODO Auto-generated method stub System.out.println("姓名:"+name+"价格:"+price+"元/天"+"载人:"+capacity+"人"); } }
Java入门第二季 升级版
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