Calculation training shell application written on java 17

Build and install distribution

gradle installDist

Run distribution

interactive mode

on Linux:

 ./bin/calc-trainer
 calc-trainer:>train

on Windows:

 \bin\calc-trainer.bat
 calc-trainer:>train

non-interactive mode

on Linux:

./bin/calc-trainer train

on Windows:

\bin\calc-trainer.bat train

running options

--digits int
  Sets the max count of digits in number
  [Optional, default = 2]

-a Boolean
   Includes operation of addition to training
   [Optional]

-s Boolean
   Includes operation of subtraction to training
   [Optional]

-m Boolean
   Includes operation of multiplication to training
   [Optional]

Examples:

run training with 1-digit numbers and multiplication operation:

./bin/calc-trainer train --digits 1 -m

run training with 3-digit numbers and addition, subtraction operations:

./bin/calc-trainer train --digits 1 -as

running training with 2-digit numbers and addition, subtraction, multiplication operations:

./bin/calc-trainer train
85 - 45 =  40
Correct!!!
93 + 53 =  146
Correct!!!
89 + 26 =  115
Correct!!!
28 * 87 =  456
Not correct!!! Correct answer: 2436
15 - 15 =  [Enter answer or 'stop' to exit]