Java Taskbook Level 6.6

Determine how many days are left until the end of the month.

Ask the user to enter their email. Check if they entered the correct value.

Ask the user to enter a date in the format year-month-day. Determine if the date was already in the current year.

Ask the user for their birthday. Find out how many days are left until their next birthday.

Given some array, for example, like this:

int[] {123, 456, 789}

Merge all the elements of this array into one array, splitting them character by character:

byte {1, 2, 3, 4, 5, 6, 7, 8, 9}