How should I write source code in jsf?

Question

Java

how to write condition code in jsf? ("if so-and-so, then so-and-so")
Standard spelling as in jsp is not accepted.
PS In general, it is necessary to enter a value in a hidden field, but (and I already asked such a question) the option does not work stubbornly

<h:inputHidden value="#{informationController.token}" />

in the presence of appropriate getters and setters of the object

Answer 1

Use the standard rendered attribute .

Answer 2

In general, the ternary operator works in jsf:
For example,
And the rendered attribute is responsible for the very presence of the corresponding HTML tag ( <input type="hidden".../>in our case.)