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改程序，从键盘可输入多个（如3个）员工的信息（类型可以是两种中的任意一种），然后输出全部员工的信息。
可能的输入输出形式：
显示：1.Add a Staff Member
2.Display all Staff
3.Exit Programe
选择1后，显示 1. Add an Employee
2. Add a Manager
3. return

1. import java.util.*;
   
2. 
   
3. 
   
4. public class ManagerTest
   
5. {
   
6. public static void main(String[] args)
   
7. {
   
8. // construct a Manager object
   
9. Manager boss = new Manager("Carl Cracker", 80000, 1987, 12, 15);
   
10. boss.setBonus(5000);
    
11. 
    
12. Employee[] staff = new Employee[3];
    
13. 
    
14. // fill the staff array with Manager and Employee objects
    
15. 
    
16. staff[0] = boss;
    
17. staff[1] = new Employee("Harry Hacker", 50000, 1989, 10, 1);
    
18. staff[2] = new Employee("Tommy Tester", 40000, 1990, 3, 15);
    
19. 
    
20. // print out information about all Employee objects
    
21. for (Employee e : staff)
    
22. System.out.println("name=" + e.getName() + ",salary=" + e.getSalary());
    
23. }
    
24. }
    
25. 
    
26. class Employee
    
27. {
    
28. public Employee(String n, double s, int year, int month, int day)
    
29. {
    
30. name = n;
    
31. salary = s;
    
32. GregorianCalendar calendar = new GregorianCalendar(year, month - 1, day);
    
33. hireDay = calendar.getTime();
    
34. }
    
35. 
    
36. public String getName()
    
37. {
    
38. return name;
    
39. }
    
40. 
    
41. public double getSalary()
    
42. {
    
43. return salary;
    
44. }
    
45. 
    
46. public Date getHireDay()
    
47. {
    
48. return hireDay;
    
49. }
    
50. 
    
51. public void raiseSalary(double byPercent)
    
52. {
    
53. double raise = salary * byPercent / 100;
    
54. salary += raise;
    
55. }
    
56. 
    
57. private String name;
    
58. private double salary;
    
59. private Date hireDay;
    
60. }
    
61. 
    
62. class Manager extends Employee
    
63. {
    
64. /**
    
65. * @param n the employee's name
    
66. * @param s the salary
    
67. * @param year the hire year
    
68. * @param month the hire month
    
69. * @param day the hire day
    
70. */
    
71. public Manager(String n, double s, int year, int month, int day)
    
72. {
    
73. super(n, s, year, month, day);
    
74. bonus = 0;
    
75. }
    
76. 
    
77. public double getSalary()
    
78. {
    
79. double baseSalary = super.getSalary();
    
80. return baseSalary + bonus;
    
81. }
    
82. 
    
83. public void setBonus(double b)
    
84. {
    
85. bonus = b;
    
86. }
    
87. 
    
88. private double bonus;
    
89. }
    
90. 
    

复制代码

复制代码

改程序，从键盘可输入多个（如3个）员工的信息（类型可以是两种中的任意一种），然后输出全部员工的信息。
可能的输入输出形式：
显示：1.Add a Staff Member
2.Display all Staff
3.Exit Programe
选择1后，显示 1. Add an Employee
2. Add a Manager
3. return

1. import java.util.*;
   
2. 
   
3. 
   
4. public class ManagerTest
   
5. {
   
6. public static void main(String[] args)
   
7. {
   
8. // construct a Manager object
   
9. Manager boss = new Manager("Carl Cracker", 80000, 1987, 12, 15);
   
10. boss.setBonus(5000);
    
11. 
    
12. Employee[] staff = new Employee[3];
    
13. 
    
14. // fill the staff array with Manager and Employee objects
    
15. 
    
16. staff[0] = boss;
    
17. staff[1] = new Employee("Harry Hacker", 50000, 1989, 10, 1);
    
18. staff[2] = new Employee("Tommy Tester", 40000, 1990, 3, 15);
    
19. 
    
20. // print out information about all Employee objects
    
21. for (Employee e : staff)
    
22. System.out.println("name=" + e.getName() + ",salary=" + e.getSalary());
    
23. }
    
24. }
    
25. 
    
26. class Employee
    
27. {
    
28. public Employee(String n, double s, int year, int month, int day)
    
29. {
    
30. name = n;
    
31. salary = s;
    
32. GregorianCalendar calendar = new GregorianCalendar(year, month - 1, day);
    
33. hireDay = calendar.getTime();
    
34. }
    
35. 
    
36. public String getName()
    
37. {
    
38. return name;
    
39. }
    
40. 
    
41. public double getSalary()
    
42. {
    
43. return salary;
    
44. }
    
45. 
    
46. public Date getHireDay()
    
47. {
    
48. return hireDay;
    
49. }
    
50. 
    
51. public void raiseSalary(double byPercent)
    
52. {
    
53. double raise = salary * byPercent / 100;
    
54. salary += raise;
    
55. }
    
56. 
    
57. private String name;
    
58. private double salary;
    
59. private Date hireDay;
    
60. }
    
61. 
    
62. class Manager extends Employee
    
63. {
    
64. /**
    
65. * @param n the employee's name
    
66. * @param s the salary
    
67. * @param year the hire year
    
68. * @param month the hire month
    
69. * @param day the hire day
    
70. */
    
71. public Manager(String n, double s, int year, int month, int day)
    
72. {
    
73. super(n, s, year, month, day);
    
74. bonus = 0;
    
75. }
    
76. 
    
77. public double getSalary()
    
78. {
    
79. double baseSalary = super.getSalary();
    
80. return baseSalary + bonus;
    
81. }
    
82. 
    
83. public void setBonus(double b)
    
84. {
    
85. bonus = b;
    
86. }
    
87. 
    
88. private double bonus;
    
89. }
    
90. 
    

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