Java实现一个达达租车系统的步骤详解

package com.jinger;
public abstract class car {
 public int rent;//日租金
 public int people;//载客人数
 public int loads;//载货量
 public string name;//车名
public int getrent(){
 return rent;
}
public void setrent(int rent){
 this.rent=rent;
}
public int getpeople(){
 return people;
}
public void setpeople(int people){
 this.people=people;
}
public int getloads(){
 return loads;
}
public void setloads(int loads){
 this.loads=loads;
}
public string getname(){
 return name;
}
public void setname(string name){
 this.name=name;
}
}

package com.jinger;
public class passagecar extends car{
 public passagecar(string name,int people,int rent){
 this.setname(name);
 this.setpeople(people);
 this.setrent(rent);
 
 
 }
 
 public string tostring(){
 return this.getname()+"	"+this.getpeople()+"				"+this.getrent();
 }
 }

package com.jinger;
public class truck extends car {
 public truck(string name,int loads,int rent){
 this.setname(name);
 this.setloads(loads);
 this.setrent(rent);
 }
 
 public string tostring(){
 return this.getname()+"			"+this.getloads()+"		"+this.getrent();
 }
 }

package com.jinger;
public class pickup extends car {
 public pickup(string name,int people,int loads,int rent){
 this.setname(name);
 this.setpeople(people);
 this.setloads(loads);
 this.setrent(rent);
 }
 
 public string tostring(){
 return this.getname()+"	"+this.getpeople()+"		"+this.getloads()+"		"+this.getrent();
 }
 }

package com.jinger;
import java.util.*;
public class initial {
 public static void main(string[] args) {
 //对各类车实例化并保存到cars数组
 car[] cars={
 new passagecar("奥迪a4",4,500),
 new passagecar("马自达6",4,400),
 new pickup("皮卡雪6",4,2,450),
 new passagecar("金龙",20,800),
 new truck("松花江",4,400),
 new truck("依维柯",20,1000)};
 system.out.println("****欢迎使用达达租车系统！****");
 system.out.println("****您确认租车吗？****"+"
"+"是（请输入1） 	 否（请输入2）");
 
 scanner in1=new scanner(system.in);
 int is=in1.nextint();
 if(is!=1){
 system.out.println("****欢迎下次光临！****");
 system.exit(0);
 }
 if(is==1){
 system.out.println("****您可租车的类型及价目表****");
 system.out.println("序号"+"	车名"+"	载客数（人）"+"	载货量（吨）"+"	日租金（元/天）");
 
 //使用循环方式将各类车输出
 for(int i=0;i<cars.length;i++){
 system.out.println((i+1)+"	"+cars[i]);
 }
 
 
 
 system.out.println("****请输入您的租车数量：****");
 int num1=in1.nextint();
 car[] rentcar=new car[num1];
 int price=0;//总价格
 int totalpeople=0;//总人数
 int totalloads=0;//总载货量
 
 for(int i=0;i<num1;i++){
 system.out.println("****请输入第"+(i+1)+"辆车的序号：****");
 int numx=in1.nextint();
 rentcar[i]=cars[numx-1];
 
 }
 system.out.println("****请输入天数：****");
 int day=in1.nextint();
 for(int i=0;i<num1;i++){
 price=price+rentcar[i].rent *day;
 }
 system.out.println("****您的账单：****");
 system.out.println("已选载人车：");
 for(int i=0;i<num1;i++){
 if(rentcar[i].people!=0){
  system.out.println(rentcar[i].name+"	");
 }
 
 totalpeople=totalpeople+rentcar[i].people;
 }
 
 system.out.println('
');
 system.out.println("已选载货车：");
 for(int i=0;i<num1;i++){
 if(rentcar[i].loads!=0){
  system.out.println(rentcar[i].name+"	");
 }
  
 totalloads=totalloads+rentcar[i].loads;
 }
 
 
  system.out.println('
');
  system.out.println("共载客："+totalpeople+"人");
  system.out.println("共载货："+totalloads+"吨");
  system.out.println("租车总价格："+price+"元");
  system.out.println('
');
  system.out.println("****感谢您的惠顾，欢迎再次光临！****");
 
 }
 }
 }