Guess the secret number

Now the secret number is configurable via SECRET_NUMBER environment variable!

How to compile

kotlinc src/**/*.kt -d build

How to run

SECRET_NUMBER=11 kotlin -cp build project004.GuessKt 11

Noteworthy

• System.getenv() is a java function being consumed by kotlin code
• If environment variable is not set an exception is thrown.

See docs for further details.