本文实例为大家分享了java编写汽车租赁系统的具体代码，供大家参考，具体内容如下
题目要求：
1，汽车租赁信息表如下：
2，类和属性：
3，运行效果：
效果实现：
代码实现：
1，车类：
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package homework.exam;
public abstract class Vehicle { private String num; private String brand; private double rent;
public String getNum() { return num; }
public void setNum(String num) { this .num = num; }
public String getBrand() { return brand; }
public void setBrand(String brand) { this .brand = brand; }
public double getRent() { return rent; }
public void setRent( double rent) { this .rent = rent; }
public Vehicle() { } //含参构造 public Vehicle(String num, String brand, double rent) { this .num = num; this .brand = brand; this .rent = rent; }
@Override public String toString() { return "汽车{" + "车牌号='" + num + '\ '' + ", 品牌='" + brand + '\ '' + ", 日租金=" + rent + '}' ; } public abstract double totalmoney( int days , double rent); public abstract boolean equals(Vehicle o); } |
2，汽车类：
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package homework.exam;
public class Cars extends Vehicle{ private String type;
public String getType() { return type; }
public void setType(String type) { this .type = type; }
public Cars(String brand,String type) { this .type = type;
}
public Cars(String num, String brand, double rent, String type) { super (num, brand, rent); this .type = type; }
@Override public String toString() { return "Cars{" + "type='" + type + '\ '' + '}' ; }
//计算小汽车的总租金 @Override public double totalmoney( int days, double rent) { if (days> 7 ){ return days*rent* 0.9 ; } else if (days> 30 ){ return days*rent* 0.8 ; } else if (days> 150 ){ return days*rent* 0.7 ; } return days*rent; } //重写equals方法 @Override public boolean equals(Vehicle o) { if (o instanceof Cars){ Cars cars= (Cars) o; return this .getType().equals(cars.getType())&& this .getBrand().equals(o.getBrand()); } return false ; } } |
3，客车类：
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package homework.exam;
public class Bus extends Vehicle { private String seat;
public String getSeat() { return seat; }
public void setSeat(String seat) { this .seat = seat; }
public Bus(String num, String brand, double rent, String seat) { super (num, brand, rent); this .seat = seat; }
//计算客车的租金 @Override public double totalmoney( int days, double rent) { if (days>= 3 ){ return days*rent* 0.9 ; } else if (days>= 7 ){ return days*rent* 0.8 ; } else if (days>= 30 ){ return days*rent* 0.7 ; } else if (days>= 150 ){ return days*rent* 0.6 ; } return days*rent; } //重写equals方法 @Override public boolean equals(Vehicle o) { return false ; } } |
4，车辆管理类：
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package homework.exam;
public class CarRent { //创建汽车数组，将汽车的信息放在数组中 public Cars[] carMake(){ Cars c1 = new Cars( "京NY28588" , "宝马" , 800 , "x6" ); Cars c2 = new Cars( "京CNY3284" , "宝马" , 600 , "550i" ); Cars c3 = new Cars( "京NT37465" , "别克" , 300 , "林荫大道" ); Cars c4 = new Cars( "京NT96928" , "别克" , 600 , "GL8" ); Cars[] arr1 ={c1,c2,c3,c4}; return arr1; } //创建客车数组，将汽车的信息放在数组中 public Bus[] busMake(){ Bus b1 = new Bus( "京6566754" , "金杯" , 800 , "16座" ); Bus b2 = new Bus( "京8696667" , "金龙" , 800 , "16座" ); Bus b3 = new Bus( "京9696996" , "金杯" , 1500 , "34座" ); Bus b4 = new Bus( "京8696998" , "金龙" , 1500 , "34座" ); Bus[] arr2={b1,b2,b3,b4}; return arr2; } } |
5，业务服务类：
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package homework.exam;
import java.util.Scanner;
public class CarService { public void rentcar(){ System.out.println( "**********欢迎光临秋名山守望者汽车租赁公司**********" ); Scanner sc = new Scanner(System.in); System.out.println( "1，轿车 2，客车" ); System.out.print( "请输入您要租赁的汽车类型：" ); int i = sc.nextInt(); CarRent carRent = new CarRent(); //创建车库对象 Cars[] cars = carRent.carMake(); //拿到轿车数组对象 Cars car= null ; Bus[] buses = carRent.busMake(); //拿到客车数组对象 Bus bus= null ; //判断用户选择的车型 if (i== 1 ){ System.out.print( "请选择你要租赁的汽车品牌：（1，别克 2，宝马）" ); int i1 = sc.nextInt(); if (i1== 1 ){ System.out.print( "请输入你要租赁的汽车类型：（1，林荫大道 2,GL8 ）" ); } else { System.out.print( "请输入你要租赁的汽车类型：（1，x6 2,550i ）" ); } String i2 = sc.next(); //遍历汽车数组，拿到用户选择的汽车 for ( int j = 0 ; j < cars.length; j++) { if (cars[j].getType().equals(i2)){ //当选择的车的类型与数组中的匹配时 car=cars[j]; //将车赋值给car break ; } } System.out.print( "请输入你要租赁的天数：" ); int days = sc.nextInt(); System.out.print( "分配给你的汽车牌号是：" ); System.out.println(car.getNum()); //获取汽车的车牌 double totalmoney = 0 ; //调用total totalmoney = car.totalmoney(days, car.getRent()); //计算用户的租金 System.out.print( "你需要支付的租赁分费用是：" ); System.out.print(totalmoney);
} else if (i== 2 ){ System.out.print( "请选择你要租赁的汽车品牌：（1，金龙 2，金杯）" ); String i2 = sc.next(); System.out.print( "请输入你要租赁的汽车座位数：（1,16座 2,34座）" ); String i3 = sc.next(); //遍历客车数组，拿到用户选择的客车 for ( int j = 0 ; j < buses.length; j++) { //当输入的客车的车牌和座位与数组中的相等，就选出用户选择的车 if (buses[j].getBrand().equals(i2)&&buses[j].getSeat().equals(i3)){ bus=buses[j]; //将选择的车辆赋值给bus break ; } } System.out.print( "请输入你要租赁的天数：" ); int days = sc.nextInt(); System.out.print( "分配给你的汽车牌号是：" ); System.out.println(); System.out.println(bus.getNum()); //拿到用户选择的车牌号 double totalmoney = 0 ; //调用totalmoney方法 totalmoney=bus.totalmoney(days, bus.getRent()); //用用户输入的天数。来计算租金 System.out.print( "你需要支付的租赁分费用是：" ); System.out.print(totalmoney); } } } |
6，测试类：
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package homework.exam;
public class Test { public static void main(String[] args) { CarService cs = new CarService(); cs.rentcar(); } } |
控制台输入的内容，我选择的是输入字符串类型，没有按照效果图上，如果你做的话，你可以用三元运算符来实现哦！
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。
原文链接：https://blog.csdn.net/weixin_44889894/article/details/111331088