Today worked on Calculator.
first time creating full calculator from zero.
I thought it was easier, but may be I have little bit complicated it for me. it doesnt just operate between 2 numbers, but actually parses full expression and has logic to iterate through multiplication and divisions as they have to be calculated first and only then it moves to other operators. But of course this was easier than music player. Though I am not happy that it took me 2 hours, I should have done it faster. hope next app will be last, I am tired already.
but next app is the most complex :(