本文实例为大家分享了java实现汽车租赁系统的具体代码，供大家参考，具体内容如下
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//车类 public abstract class vehicle { //车牌号 品牌 日租金 private string id; private string brand; private int perrent;
public vehicle(){} //vehicle的带参构造方法 public vehicle(string id, string brand, int perrent) { this .id = id; this .brand = brand; this .perrent = perrent; }
public void setid(string id){ this .id=id ; } public string getid(){ return id; }
public void setbrand(string brand){ this .brand=brand; } public string getbrand(){ return brand; }
public void setperrent( int perrent){ this .perrent=perrent; } public int getperrent(){ return perrent; } //抽象方法计算租金 public abstract double calcrent( int days);
}
//轿车类 public class car extends vehicle{ //型号 private string type; public void settype(string type){ this .type=type; } public string gettype(){ return type; }
public car(){} //car的带参构造方法 public car(string id, string brand, int perrent,string type) { super (id,brand,perrent); this .type = type; } //重写父类的计算租金方法：根据自己的计算租金规则 public double calcrent( int days) { double price = this .getperrent()*days; if (days> 7 && days<= 30 ){ price *= 0.9 ; } else if (days> 30 && days<= 150 ){ price *= 0.8 ; } else if (days> 150 ){ price *= 0.7 ; } return price; } }
//客车类 public class bus extends vehicle{ //座位数 private int seatcount; public void setseatcount( int seatcount){ this .seatcount=seatcount; } public int getseatcount(){ return seatcount; }
public bus(){} //bus的带参构造方法 public bus(string id,string brand, int perrent, int seatcount){ super (id,brand,perrent); this .seatcount = seatcount; } //重写父类的计算租金方法：根据自己的计算租金规则 public double calcrent( int days) { double price = this .getperrent()*days; if (days>= 3 && days< 7 ){ price *= 0.9 ; } else if (days>= 7 && days< 30 ){ price *= 0.8 ; } else if (days>= 30 && days< 150 ){ price *= 0.7 ; } else if (days> 150 ){ price *= 0.6 ; } return price;
} }
//汽车业务类 public class operation { public vehicle[] vehicle = new vehicle[ 8 ]; //初始化汽车信息 public void init(){ vehicle[ 0 ] = new car( "京ny28588" , "宝马" , 800 , "x6" ); //vehicle v = new car(); vehicle[ 1 ] = new car( "京cny32584" , "宝马" , 600 , "550i" ); //vehicle v = new car(); vehicle[ 2 ] = new car( "京nt37465" , "别克" , 300 , "林荫大道" ); //vehicle v = new car(); vehicle[ 3 ] = new car( "京nt96968" , "别克" , 600 , "gl8" ); //vehicle v = new car(); vehicle[ 4 ] = new bus( "京6566754" , "金杯" , 800 , 16 ); //vehicle v = new bus(); vehicle[ 5 ] = new bus( "京8696997" , "金龙" , 800 , 16 ); //vehicle v = new bus(); vehicle[ 6 ] = new bus( "京9696996" , "金杯" , 1500 , 34 ); //vehicle v = new bus(); vehicle[ 7 ] = new bus( "京8696998" , "金龙" , 1500 , 34 ); //vehicle v = new bus(); } //租车：根据用户提供的条件去汽车数组中查找相应车辆并返回 //如果租赁的是轿车 需要条件：品牌 型号 //如果租赁的是客车 需要条件：品牌 座位数 //简单工厂模式 public vehicle zuche(string brand,string type, int seatcount){ vehicle che = null ; //for循环遍历数组vehicle for (vehicle myche : vehicle){ //判断vehicle类的myche的类型是否和car一样 if (myche instanceof car){ //vehicle类的myche向下转型变成子类car car car = (car)myche; if (car.getbrand().equals(brand) && car.gettype().equals(type)){ che=car; break ; } } else { //vehicle类的myche向下转型变成子类bus bus bus = (bus)myche; if (bus.getbrand().equals(brand) && bus.getseatcount() == seatcount){ che=bus; break ; } } } return che;
} }
//汽车租赁 public class rent { public static void main(string[] args) { scanner input = new scanner(system.in); operation operation = new operation(); //租赁公司界面 operation.init(); system.out.println( "**********欢迎光临租赁公司**********" ); system.out.println( "1.轿车\t\t2.客车" ); system.out.println( "请选择您要租赁的汽车类型：（1.轿车 2.客车）" ); int chetype = input.nextint(); string brand = "" ; //品牌 string type = "" ; //型号 int seatcount = 0 ; //座位数 //收集用户条件 if (chetype == 1 ){ //租赁轿车 system.out.println( "请选择您要租赁的轿车品牌：（1.别克 2.宝马）" ); int choose = input.nextint(); if (choose == 1 ){ brand= "别克" ; system.out.println( "请选择您要租赁的汽车型号：（1.林荫大道 2.gl8）" ); type=(input.nextint() == 1 )? "林荫大道" : "gl8" ; } else if (choose == 2 ){ brand= "宝马" ; system.out.println( "请选择您要租赁的汽车型号：（1.x6 2.550i）" ); type=(input.nextint() == 1 )? "x6" : "550i" ; }
} else if (chetype == 2 ){ //租赁客车 type= "" ; system.out.println( "请选择您要租赁的客车品牌：（1.金杯 2.金龙）" ); brand=(input.nextint()== 1 )? "金杯" : "金龙" ; system.out.println( "请选择您要租赁的客车座位数：（1.16座 2.32座）" ); seatcount=(input.nextint() == 1 )? 16 : 34 ; } //租车 vehicle che = operation.zuche(brand, type, seatcount); system.out.println( "请输入您的租赁天数：" ); int days = input.nextint(); double money = che.calcrent(days); system.out.println( "租车成功，请按照如下车牌号提车：" +che.getid()); system.out.println( "您需要支付：" +money+ "元" ); }
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原文链接：https://blog.csdn.net/baidu_29343517/article/details/81153722