Operations16 constructor Null safety

1. jrpn
2. jrpn16.main
3. Operations16
4. Operations16 constructor

Operations16 class

1. Constructors
2. Operations16
3. Properties
4. hashCode
5. runtimeType
6. Methods
7. noSuchMethod
8. toString
9. Operators
10. operator ==
11. Static properties
12. and
13. asr
14. bin
15. bQuestion
16. cb
17. cf
18. dblDiv
19. dblr
20. dblx
21. dec
22. div
23. dsz
24. floatKey
25. fQuestion
26. gsb
27. gto
28. hex
29. I
30. isz
31. lbl
32. letterA
33. letterB
34. letterC
35. letterD
36. letterE
37. letterF
38. lj
39. maskl
40. maskr
41. minus
42. mult
43. not
44. oct
45. onesCompl
46. or
47. parenI
48. plus
49. poundB
50. rcl
51. reciprocal
52. rl
53. rlc
54. rlcn
55. rln
56. rmd
57. rr
58. rrc
59. rrcn
60. rrn
61. sb
62. sf
63. showBin
64. showDec
65. showHex
66. showOct
67. sl
68. sr
69. sto
70. twosCompl
71. unsign
72. window
73. windowLeft
74. windowRight
75. wSize
76. xor
77. xSwapI