Returns null if the input isn't checked

[messalas]

I am using Bootstrap Toggle for checkboxes and I have this:

<input type="checkbox" name="hasLabel" data-on="With Label" data-off="Without Label" data-toggle="toggle" data-onstyle="success" data-offstyle="danger">

The problem is that if the input is checked the request.getParameter("hasLabel") returns on, and if it isn't returns null

How can I define that if the checkbox is not checked to return off, false or sth else?

I have posted the same question in StackOverflow