The following code sets a cookie with the UserName set as Paul and an expiration date of 28 December, 2020:
<!DOCTYPE html> <html lang="en"> <head> <script> document.cookie = "UserName=Paul;expires=Tue, 28 Dec 2020 00:00:00;"; </script> </head> //from w ww . j a v a 2s . c om <body> <p>This page just created a cookie</p> </body> </html>