Which Should i use for date,time,email in servlet?

In servlet we use for text data

String uname=request.getParameter("uname");

For numeric data we use

int contact=Integer.parseInt(request.getParameter("contact"));

Which should i use for email,date and time in servlet?

Actually I'm using HTML5 where I use email as

<input type="email" id="txtEmail" name="email" required>

Date as

<input type="date" id="dateBirthday" name="birthday" required>

Time as

<input type="date" id="dateBirthday" name="birthday" required>

So which should i use in servlet?