请采用采用简单工厂设计模式,为某个汽车销售店设计汽车销售系统,接口car至少有方法print(),三个汽车类:宝马、奥迪、大众 (属性:品牌,价格),在测试类中根据客户要求购买的汽车品牌,通过接口car为客户提供相应的汽车对象。
package pro4; public class Car01 { public static void main(String[] args) { Car c1=null; c1=Factory.getInstance("Audi"); if(c1!=null){ c1.print(); } } } interface Car{ public void print(); } class Factory{ public static Car getInstance(String name){ Car c1=null; if("BMW".equals(name)){ c1=new BMW("BMW 740Li",1200000); } if("Audi".equals(name)){ c1=new Audi("Audi A8",1000000); } if("VW".equals(name)){ c1=new VW("Volkswagen Pharton",1888888); } return c1; } } class BMW implements Car{ private String name; private double money; public BMW(String name,double money){ this.setName(name); this.setMoney(money); } public String getName() { return name; } public void setName(String name) { this.name = name; } public double getMoney() { return money; } public void setMoney(double money) { this.money = money; } public void print() { System.out.println("BMW--"+name+"的价格为"+money+"¥"); } } class Audi implements Car{ private String name; private double money; public Audi(String name,double money){ this.setName(name); this.setMoney(money); } public String getName() { return name; } public void setName(String name) { this.name = name; } public double getMoney() { return money; } public void setMoney(double money) { this.money = money; } public void print() { System.out.println("Audi--"+name+"的价格为"+money+"¥"); } } class VW implements Car{ private String name; public VW(String name,double money){ this.setName(name); this.setMoney(money); } public String getName() { return name; } public void setName(String name) { this.name = name; } public double getMoney() { return money; } public void setMoney(double money) { this.money = money; } private double money; public void print() { System.out.println("VW--"+name+"的价格为"+money+"¥"); } }