1 ( Number of days in a year ) Write a method that returns the number of days in a year using the following header: public static int numberOfDaysInAYear(int year) Write a test program that displays...

1 (Number of days in a year) Write a method that returns the number of days in a year using the following header: public static int numberOfDaysInAYear(int year) Write a test program that displays the number of days in year from 2000 to 2020.

2 (Display matrix of 0s and 1s) Write a method that displays an
n-by-n
matrix using the following header: Each element is 0 or 1, which is generated randomly. Write a test program that prompts the user to enter n and displays an
n-by-n
matrix. Here is a sample run: