A library (package OldFashionPound) implementing the 4 arithmetic operations (sum, subtraction, multiplication and division) for pre-1970 UK prices.
Under the old money system of UK, before 1970, there were 12 pence in a shilling and 20 shillings, or 240 pence, in a pound. Thus, a price in th OldUK Money system was expressed in Pounds, Shillings and Pence.
For example "12p 6s 10d" is 12 Pounds, 6 Shillings and 10 Pence.
Sum and Subtraction should add or subtract two prices respectively.
Example SUM:
- 5p 17s 8d + 3p 4s 10d = 9p 2s 6d
Example SUBTRACTION:
- 5p 17s 8d - 3p 4s 10d = 2p 12s 10d
Subtractions giving negative results are managed:
- 5p 17s 8d - 5p 18s 8d = 0d (-1s 0d)
Multiplication and division will multiply or divide a price by an integer
Example MULTIPLICATION:
- 5p 17s 8d * 2 = 11p 15s 4d
Example DIVISION:
- 5p 17s 8d / 3 = 1p 19s 2d (2d)
Another Example DIVISION
- 18p 16s 1d / 15 = 1p 5s 0d (1s 1d)
$ java -jar path/to/OldFashionPound-X.X.X.jar [expression]Expression must follow one of this rule:
- Xp Ys Zd [+|-] Ap Bs Cd
- Xp Ys Zd [*|/] K
Edit configurations -> set Program arguments
"5p 17s 8d [+] 3p 4s 10d"
"5p 17s 8d [-] 3p 4s 10d"
"5p 17s 8d [-] 5p 18s 8d"
"5p 17s 8d [*] 2"
"5p 17s 8d [/] 3"
"18p 16s 1d [/] 15"