Does this also check for special chars,numbers and spaces?

Still Exception in thread "main" java.lang.ArithmeticException: integer overflow for -2147483648

Now this is the actual code, I forgot about Math function.

did not know about this function.thanks a lot.

love you

ups

no me gusta, es muy simple

You are right! Thx.

I just re-read that, You're right!

I thought it was case-sensitive

Instead of puting to map and checking every time if character is already in that map you can just put it to set (set does not have duplicates)

Hi, in description author wrote: "case-insensitive alphabetic characters" so probably toLowerCase() would fix your problem :)

Im also waiting for random test fix :)