本文实例为大家分享了java实现答答租车系统的具体代码，供大家参考，具体内容如下
项目需求：
基本界面需求：
and:
最后是把账单打印出来：
个人代码实现
基本思路：考虑到车辆之间的共性，设置一个父类car, 子类mannedcar(载人), truck(载货)，bothcary(既载人又载货)，三者继承父类car的price, name属性, getname()方法, 同时重写getpersonnum, getgoodsnum方法。
car.java:
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 |
package car;
public abstract class car { protected int price; protected string name; protected int getprice() { return price; } protected string getname() { return name; } public int getpersonnum() { // todo auto-generated method stub return 0 ; } public int getgoodsnum() { // todo auto-generated method stub return 0 ; }
} |
mannedcar.java:
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 |
package car;
public class mannedcar extends car { private int personnum;
public mannedcar() { this .personnum = 0 ; this .price = 0 ; this .name = "" ; }
public mannedcar( int personnum, int price, string name) { this .personnum = personnum; this .price = price; this .name = name; }
@override public int getpersonnum() { return personnum; } } |
truck.java:
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 |
package car;
public class truck extends car{ private int goodsnum;
public truck() { this .price = 0 ; this .goodsnum = 0 ; this .name = "" ; }
public truck( int price, int goodsnum, string name) { this .price = price; this .goodsnum = goodsnum; this .name = name; }
@override public int getgoodsnum() { return goodsnum; } } |
bothcarry.java:
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 |
package car;
public class bothcarry extends car { private int personnum; private int goodsnum;
public bothcarry() { this .personnum = 0 ; this .goodsnum = 0 ; this .name = "" ; this .price = 0 ; }
public bothcarry( int price, int personnum, int goodsnum, string name) { this .personnum = personnum; this .goodsnum = goodsnum; this .price = price; this .name = name; }
public int getpersonnum() { return personnum; }
public int getgoodsnum() { return goodsnum; } } |
系统：
carsystem.java:
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 |
package car;
import java.util.scanner; import java.util.arraylist;
public class carsystem {
private static string goodbyeinfo = "欢迎再次使用本系统，再见！" ; private static int dayborrow;
public static void beginsystem() { carsystem.systemwelcome(); scanner scanner = new scanner(system.in); string usercommand = scanner.next();
switch (usercommand){ case "1" : carsystem.getuserinput(); break ; case "0" : system.out.println(goodbyeinfo); break ; default : system.out.println( "输入错误..end running.." ); system.exit( 0 ); break ; } }
public static void systemwelcome() { 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" ); }
public static void getuserinput() { int numcarborrow = 0 ; arraylist<car> carlist = new arraylist<car>( 6 ); carlist.add( new mannedcar( 4 , 500 , "奥迪a4" )); carlist.add( new mannedcar( 4 , 400 , "马自达6" )); carlist.add( new bothcarry( 450 , 4 , 2 , "皮卡雪6" )); carlist.add( new mannedcar( 20 , 800 , "金龙" )); carlist.add( new truck( 400 , 4 , "松花江" )); carlist.add( new truck( 1000 , 20 , "依维河" ));
system.out.println( "请输入您要租汽车的数量:" ); scanner sr = new scanner(system.in);
numcarborrow = sr.nextint();
int [] carnumlist = new int [numcarborrow]; for ( int i= 0 ;i<numcarborrow;i++) { system.out.println( "请输入第" + (i+ 1 ) + "辆车的序号:" ); if (sr.hasnext()) { carnumlist[i] = sr.nextint(); } } system.out.println( "请输入租车天数:" ); if (sr.hasnext()) { dayborrow = sr.nextint(); } sr.close();
stringbuilder manned = new stringbuilder(); int numofmanned = 0 ; stringbuilder goods = new stringbuilder(); int numofgoods = 0 ; int totalcost = 0 ;
for ( int i = 0 ;i < carnumlist.length;i++) { if (carnumlist[i]> 0 && carnumlist[i] < 3 || carnumlist[i]== 4 ) { manned.append( " " ); manned.append(carlist.get(carnumlist[i]- 1 ).getname()); numofmanned += carlist.get(carnumlist[i]- 1 ).getpersonnum(); } else if (carnumlist[i]== 3 ) { manned.append( " " ); manned.append(carlist.get(carnumlist[i]- 1 ).getname()); goods.append( " " ); goods.append(carlist.get(carnumlist[i]- 1 ).getname()); numofmanned += carlist.get(carnumlist[i]- 1 ).getpersonnum(); numofgoods += carlist.get(carnumlist[i]- 1 ).getgoodsnum(); } else { goods.append( " " ); goods.append(carlist.get(carnumlist[i]- 1 ).getname()); numofgoods += carlist.get(carnumlist[i]- 1 ).getgoodsnum(); } totalcost += carlist.get(carnumlist[i]- 1 ).getprice(); } //output system.out.println( "您的账单:\n***可载人的车有:" ); system.out.println(manned + " 共载人: " + numofmanned); system.out.println( "***载货的车有:\n" + goods + " 共载货 : " + numofgoods + "吨" ); system.out.println( "***租车总价格: " + totalcost * dayborrow + "元" );
}
} |
主程序:
|
1 2 3 4 5 6 7 8 9 10 |
package car;
public class carsystemtest {
public static void main(string[] args) { // todo auto-generated method stub carsystem.beginsystem(); }
} |
运行结果：
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/Joseph_Cherry/article/details/60530978