salary_info.h
1 #ifndef SALARY_INFO_H
2 #define SALARY_INFO_H
3
4 #include <iostream>
5
6 class SalaryInfo {
7 friend std::ostream &operator <<(std::ostream &os, const SalaryInfo &salaryInfo) {
8 os << salaryInfo.rate << "\t" << salaryInfo.ytdPay << "\t" << salaryInfo.ytdOvertime;
9 return os;
10 }
11 public:
12 SalaryInfo(int rate, int ytdPay, int ytdOvertime) : rate(rate), ytdPay(ytdPay), ytdOvertime(ytdOvertime) {}
13
14 int calcPay(int hours) {
15 int pay;
16 if (hours <= REGULAR_HOURS)
17 pay = rate * hours;
18 else {
19 int overtime = hours - REGULAR_HOURS;
20 pay = rate * hours + rate / 2 * overtime;
21 ytdOvertime += overtime;
22 }
23 ytdPay += pay;
24 return pay;
25 }
26
27 int getRate() {return rate;}
28
29 private:
30 int ytdOvertime;
31 int rate;
32 int ytdPay;
33 const static int REGULAR_HOURS = 40;
34 };
35
36 #endif
| Lines | Terms | Notes | In Java |
|---|---|---|---|
| 33 | static constant initialization | Data members must be initialized within the constructor (typically in the member initialization list). Static members
(of which there is only one instance/copy) cannot be initialized within the constructor (they are associated with the class
as a whole, and not any particular object/instance of the class, and thus need to be initialized independent of the
constructor being called), and are therefore usually initialized within the .cpp file. An exception to this
is a static constant of integral type which may be initializaed at its point of declaration within the class declaration.
| Java allows all variables const, static or otherwise to be initialized at the point of declaration |