Java Taskbook Level 7.6

Make a method that will take a date in the format year-month-day as a parameter, and determine whether such a date exists or not.

Create a method that will take seconds as a parameter and return the number of days corresponding to these seconds.

Create a method that will generate a string of a given length filled with random Latin letters.

Create a method that will receive a string of words as a parameter and return an uppercase string consisting of the first letters of the words.

Create a method that takes an array of numbers as a parameter and replaces each number with an array of its divisors.