houseView
|
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
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
|
package house.view;import house.model.House;import house.sevice.house_Sevice;import house.tool.Utility;import java.util.Scanner;/** * 1 显示界面 * 2 接收用户的输入 * 3 调用houseService完成对房屋信息的各种输人 */public class houseView { private boolean loop=true; private char key=' '; //编写addhouse()，接收输入，创建addhouse对象，调用add方法 public void addhouse(){ System.out.println("---------添加房屋-------"); System.out.print("姓名:"); String name=Utility.readString(6); System.out.print("电话:"); int phone=Utility.readInt(12); System.out.print("地址:"); String address=Utility.readString(14); System.out.print("月租:"); int rent=Utility.readInt(); System.out.print("状态:"); String state=Utility.readString(3); //注意id是系统分配的 House newhouse=new House(0,name,phone,address,rent,state); if(house_sevice.add(newhouse)){ System.out.println("添加房屋成功"); }else { System.out.println("添加房屋失败"); } } //查找房屋 public void find(){ System.out.println("---------查找房屋-------"); System.out.print("请输入要查找的房屋编号:"); int f=Utility.readInt(); if(house_sevice.Find(f)==null){ System.out.println("没有找到该房屋的信息"); }else { System.out.println("编号 房主 \t电话 \t地址 \t月租 \t状态(出租/未出租)\n"+house_sevice.Find(f)); } } //编写delhosue方法，接收输入的id，调用service的del方法 public void delhouse(){ System.out.println("---------删除房屋-------"); System.out.print("请输入要删除的房屋编号(-1退出):"); int delid=Utility.readInt(); if(delid==-1){ System.out.println("---------退出删除-------"); return; } char c=Utility.readConfirmSelection();//调用该方法，一直循环直到用户输入y或n if(c=='Y'){ if(house_sevice.del(delid)){ System.out.println("---------删除成功-------"); }else { System.out.println("---------删除失败-------"); } }else { System.out.println("---------退出删除-------"); return; } } //修改房屋信息 public void update(){ System.out.println("---------修改房屋信息-------"); System.out.print("请输入要修改的房屋编号(-1退出):"); int up=Utility.readInt(); if(up==-1){ System.out.println("---------退出修改-------"); return; } house_sevice.updata(up); System.out.println("---------修改成功-------"); } //显示房屋列表 private house_Sevice house_sevice=new house_Sevice(10);//设置数组大小为10 public void listHouse(){ System.out.println("---------房屋出租列表-------"); System.out.println("编号 房主 \t电话 \t地址 \t月租 \t状态(出租/未出租)"); House[] houses=house_sevice.list();//得到所有房屋的信息 for (int i = 0; i < houses.length; i++) { if(houses[i]==null){ break; } System.out.println(houses[i]); } } //主菜单 public void main_menu(){ do{ System.out.println("---------房屋出租系统-------"); System.out.println("\t\t1 新 增 房 源"); System.out.println("\t\t2 查 找 房 屋"); System.out.println("\t\t3 删 除 房 屋"); System.out.println("\t\t4 修 改 房 屋 信 息"); System.out.println("\t\t5 房 屋 列 表"); System.out.println("\t\t6 退 出"); System.out.print("请输入你的选择:"); key= Utility.readChar(); switch (key){ case '1': addhouse(); break; case '2': find(); break; case '3': delhouse(); break; case '4': update(); break; case '5': listHouse(); break; case '6': char n=Utility.readConfirmSelection(); if(n=='Y'){ loop=false; } break; default: System.out.println("输入错误!"); } }while (loop); }} |
house_Sevice
|
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
|
package house.sevice;import house.model.House;import house.tool.Utility;/** * house_Sevice.java<=> 类 [业务层] * //定义house[],保存house对象 * 1 响应houseView的调用 * 2 完成对房屋信息的各种操作(增删改查) */public class house_Sevice { private House[] houses;//保存house对象 private int nums=3;//记录数组内的房屋个数 private int count=3;//id //初始化房屋列表 public house_Sevice(int size){//传入数组大小 houses=new House[size]; houses[0]=new House(1,"Morty",1020,"纽约",111,"未出租"); houses[1]=new House(2,"莱月昴",1021,"东京",222,"未出租"); houses[2]=new House(3,"李星云",1022,"洛阳",333,"未出租"); } public House[] list(){ return houses;//因为重写了tostring } //添加房屋信息 public boolean add(House newhouse){ if(nums==houses.length){ return false; }else { houses[nums++]=newhouse; newhouse.setId(++count);//id自增长机制，更新newhouse的id return true; } } //删除房屋 public boolean del(int Id){ //找到要删除房屋信息元素对应的下标 int index=-1; for (int i = 0; i < nums; i++) { if(Id==houses[i].getId()){ index=i; } } if(index==-1){ return false; } for (int i = index; i < houses.length-1; i++) { houses[i]=houses[i+1];//将该位置之后的元素前移覆盖 } houses[--nums]=null;//将数组长度减一并将最后一个元素置空 return true; } //查找房屋 public House Find(int id){ //找到要查找房屋信息元素对应的下标 for (int i = 0; i < nums; i++) { if(id==houses[i].getId()){ return houses[i]; } } return null; } //修改房屋信息 public void updata(int up){ House house=Find(up); if(house==null){ System.out.println("该房屋不存在"); }else { System.out.print("姓名:("+house.getName()+"):"); String name= Utility.readString(8,"");//用户如果直接回车代表不修改，默认值为"" if(!name.equals("")){ house.setName(name);//将用户输入的name覆盖原来的name } System.out.print("手机号:("+house.getPhone()+"):"); int phone=Utility.readInt(0);//用户如果直接回车代表不修改,默认值为0 if(!(phone==0)){ house.setPhone(phone);//将用户输入的name覆盖原来的name } System.out.print("地址:("+house.getAddress()+"):"); String address=Utility.readString(8,""); if(!address.equals("")){ house.setAddress(address); } System.out.print("月租:("+house.getRent()+"):"); int rent=Utility.readInt(0); if(!(rent==0)){ house.setRent(rent); } System.out.print("状态:("+house.getState()+"):"); String state=Utility.readString(8,""); if(!state.equals("")){ house.setState(state);// } } }} |
House
|
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
|
package house.model;/** * house类的对象表示一个房屋的信息 */public class House { //编号 房主 电话 地址 月租 状态(出租/未出租) private int id; private String name; private int phone; private String address; private int rent; private String state; public House(int id, String name, int phone, String address, int rent, String state) { this.id = id; this.name = name; this.phone = phone; this.address = address; this.rent = rent; this.state = state; } public int getId() { return id; } public void setId(int id) { this.id = id; } public String getName() { return name; } public void setName(String name) { this.name = name; } public int getPhone() { return phone; } public void setPhone(int phone) { this.phone = phone; } public String getAddress() { return address; } public void setAddress(String address) { this.address = address; } public int getRent() { return rent; } public void setRent(int rent) { this.rent = rent; } public String getState() { return state; } public void setState(String state) { this.state = state; } @Override public String toString() { return id +"\t" +name +"\t" +phone +"\t" +address +"\t\t"+rent +"\t\t"+state; }} |
App
|
1
2
3
4
5
6
7
8
9
|
package house.view;import house.model.House;public class App { public static void main(String[] args) { //创建View对象，并显示主菜单，是整个程序的入口 new houseView().main_menu();//创建一个虚拟对象调用显示主菜单的方法 System.out.println("程序已退出"); }} |
总结
本篇文章就到这里了，希望能够给你带来帮助，也希望您能够多多关注服务器之家的更多内容！
原文链接：https://blog.csdn.net/m0_55997161/article/details/120588003
