1 class Province {
2 private int pid;
3 private String name;
4 private Stata stata;
5 private City citys [] ;
6 public void setStata(Stata stata){
7 this.stata=stata;
8 }
9 public Stata getStata(){
10 return this.stata;
11 }
12 public void setCitys(City citys[]){
13 this.citys=citys;
14 }
15 public City [] getCity(){
16 return this.citys;
17 }
18 public Province (int pid,String name){
19 this.pid=pid;
20 this.name=name;
21 }
22 public String getInfo(){
23 return "省份ID："+pid+" , 名称："+name;
24 }
25 }
26 class City{
27 private int cid;
28 private String cname;
29 private Province province;
30 private Stata stata;
31 public void setStata(Stata stata){
32 this.stata=stata;
33 }
34 public Stata getStata(){
35 return this.stata;
36 }
37 public void setProvince(Province province){
38 this.province=province;
39 }
40 public Province getProvince(){
41 return this.province;
42 }
43 public City(int cid,String cname){
44 this.cid=cid;
45 this.cname=cname;
46 }
47 public String getInfo(){
48 return "城市ID："+cid+",城市名称："+cname;
49 }
50 }
51 class Stata {
52 private int id;
53 private String sname;
54 private Province prs [] ;
55 private City citys [];
56 public void setCitys(City citys [] ){
57 this.citys=citys;
58 }
59 public City [] getCitys(){
60 return this.citys;
61 }
62 public void setPrs(Province prs [] ){
63 this.prs=prs;
64 }
65 public Province [] getPrs(){
66 return this.prs;
67 }
68 public Stata(int id,String sname){
69 this.id=id;
70 this.sname=sname;
71 }
72 public String getInfo(){
73 return "国家ID："+id+"，国家名称："+sname;
74 }
75 }
76 public class dare
77 {public static void main(String args[]){
78 City cd = new City(7,"南昌");
79 City cc = new City(6,"宜春");
80 City cb = new City(5,"广州");
81 City ca = new City(4,"深圳");
82 Province pb = new Province(3,"江西");
83 Province pa = new Province(2,"广东");
84 Stata st = new Stata(1,"中国");
85 pa.setStata(st);
86 pb.setStata(st);
87 st.setPrs(new Province [] {pa,pb});
88 cd.setProvince(pb);
89 cc.setProvince(pb);
90 cb.setProvince(pa);
91 ca.setProvince(pa);
92 pb.setCitys(new City[] {cd,cc});
93 pa.setCitys(new City[] {cb,ca});
94 cd.setStata(st);
95 cc.setStata(st);
96 cb.setStata(st);
97 ca.setStata(st);
98 st.setCitys(new City[] {cd,cc,cb,ca});
99 System.out.println(ca.getStata().getInfo());
100 System.out.println("***************开始取出数据****************");//通过国家查找全部对应省份信息
101 for (int a =0;a<st.getPrs().length ;a++ ){
102 System.out.println(st.getPrs()[a].getInfo());
103 }
104 System.out.println("***************开始取出数据****************");//通过国家查找全部城市信息 以及全部对应省份信息
105 for (int b =0;b<st.getCitys().length ;b++ ){
106 System.out.println(st.getCitys()[b].getInfo());
107 System.out.println("\t|-"+st.getCitys()[b].getProvince().getInfo());
108 }
109 System.out.println("***************开始取出数据****************");//通过省份查找对应城市信息
110 System.out.println(pa.getInfo());
111 for (int x =0;x<pa.getCity().length ;x++ )
112 {System.out.println(pa.getCity() [x].getInfo());
113 }
114 }
115 }
