1 package Day28ketangzuoye;
2
3 import java.util.ArrayList;
4 import java.util.HashMap;
5 import java.util.Map;
6
7 public class EmployeeTest {
8
9 public static void main(String[] args) {
10 Emp se1=new SE(0001,"蔡正",true,6000,80);
11 Emp se2=new SE(0002,"丁陆",true,7000,89);
12
13 Emp pm1=new PM(1001,"王拥江",true,9000,"一年",3000);
14 Emp pm2=new PM(1002,"贝杰明",true,13000,"七年",5000);
15
16 System.out.println("ArrayList");
17 ArrayList<Emp> list=new ArrayList<Emp>();
18 list.add(se1);
19 list.add(se2);
20 list.add(pm1);
21 list.add(pm2);
22 SE e;
23 PM m;
24 for(Emp p:list){
25 if(p instanceof SE){
26 e=(SE)p;
27 e.show();
28 }else if(p instanceof PM){
29 m=(PM)p;
30 m.show();
31 }else{
32 System.out.println("出错！");
33 }
34 }
35
36 System.out.println("\n\n HashMap");
37 Map<String,Emp> map=new HashMap<String,Emp>();
38 map.put("蔡正",se1);
39 map.put("丁陆",se2);
40 map.put("王拥江",pm1);
41 map.put("贝杰明",pm2);
42 String[] str={"蔡正","丁陆","王拥江","贝杰明"};
43 Emp p;
44 for(int i=0;i<map.size();i++){
45 p=map.get(str[i]);
46 if(p instanceof SE){
47 e=(SE)p;
48 e.show();
49 }else if(p instanceof PM){
50 m=(PM)p;
51 m.show();
52 }else{
53 System.out.println("出错！");
54 }
55 }
56
57 }
58 }
59
60 class Emp {
61 public int id;
62 public String name;
63 public boolean gender;
64 public double salary;
65
66
67 public Emp() {
68 super();
69 }
70
71 public Emp(int id, String name, boolean gender, double salary) {
72 super();
73 this.id = id;
74 this.name = name;
75 this.gender = gender;
76 this.salary = salary;
77 }
78
79 public void show(){};
80 }
81
82 class SE extends Emp {
83 int hot;
84
85 public SE(int id, String name, boolean gender, double salary,int hot) {
86 super(id,name,gender,salary);
87 this.hot = hot;
88 }
89
90 @Override
91 public void show() {
92 System.out.println("SE [id=" + id + ", name=" + name + ", gender="
93 + gender + ", salary=" + salary + ", hot=" + hot + "]");
94 }
95 }
96
97 class PM extends Emp{
98 String exp;
99 double bonus;
100
101
102 public PM(int id, String name, boolean gender, double salary,String exp, double bonus) {
103 super(id,name,gender,salary);
104 this.exp = exp;
105 this.bonus = bonus;
106 }
107
108
109 @Override
110 public void show() {
111 System.out.println("PM [id=" + id + ", name=" + name + ", gender="
112 + gender + ", salary=" + salary + ", exp=" + exp + ", bonus=" + bonus + "]");
113 }
114 }
1 ArrayList
2 SE [id=1, name=蔡正, gender=true, salary=6000.0, hot=80]
3 SE [id=2, name=丁陆, gender=true, salary=7000.0, hot=89]
4 PM [id=1001, name=王拥江, gender=true, salary=9000.0, exp=一年, bonus=3000.0]
5 PM [id=1002, name=贝杰明, gender=true, salary=13000.0, exp=七年, bonus=5000.0]
6
7
8 HashMap
9 SE [id=1, name=蔡正, gender=true, salary=6000.0, hot=80]
10 SE [id=2, name=丁陆, gender=true, salary=7000.0, hot=89]
11 PM [id=1001, name=王拥江, gender=true, salary=9000.0, exp=一年, bonus=3000.0]
12 PM [id=1002, name=贝杰明, gender=true, salary=13000.0, exp=七年, bonus=5000.0]
