This is one of the common and EASY questions. Of course, you know the difference between HTTP and HTTPS right? well, HTTP is insecure but HTTPS is secure, the extra "s" is for SECURITY, which means it not only encode and ENCRYPT the message before sending but also verify the identity of the server by using SSL CERTIFICATES provided by global certificate authorities e.g. GoDaddy, Thawte, VeriSign, Digicert, GeoTrust, and Comodo. See here to learn more how SSL and CERTIFICATIONS work in Java web application.

This is one of the common and easy questions. Of course, you know the difference between HTTP and HTTPS right? well, HTTP is insecure but HTTPS is secure, the extra "s" is for security, which means it not only encode and encrypt the message before sending but also verify the identity of the server by using SSL certificates provided by global certificate authorities e.g. GoDaddy, Thawte, VeriSign, Digicert, GeoTrust, and Comodo. See here to learn more how SSL and Certifications work in Java web application.