Java homework, validate inputed date and determine day of the week

Superb youtube tutorial link: www.youtube.com PG 126, 3.15, Create a class called Date that includes three pieces of information as instance variables–a month (type int), a day (type int) and a year (type int). Your class should have a constructor that initializes the three instance variables and assumes that the values provided are correct. Provide a set and a get method for each instance variable. Provide a method displayDate that displays the month, day and year seperated by forward slashes (/). Write a test application named DateTest that demonstrates class Date’s capabilities. -Requirements for Extra Credit: — 1. validate date, should recognize years from at least 1900 up to 3000. — 2. provide a method to return the day of the week.