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服务器之家。
原文链接：https://blog.csdn.net/Joseph_Cherry/article/details/60530978
