You are creating a tag called SmartInputTag to replace the HTML <input> tag. If the request contains a value for a given parameter, this tag automatically puts that value in the input tag for that parameter. This tag is useful when the same form is redisplayed to the user if it fails validation. For example, if the user has already input 28 as the value of "age" parameter, your SmartInputTag will generate the following outout:
<input type="text" name="age" value="28" />
Which of the following is an appropriate tag handler method to achieve this?