Get unchecked Checkbox value from view to controller. Play! + Scala

I have a model representation of my view named ApplicationModel.class. I have a search map that takes all the parameter in my search form.

public class AppModel {
// Contain the search parameters input in view
public Map<String, String> search;

In my index.hmtl.scala i have:

@linkSearch(newPage:Int) = @{
   routes.Application.search(newPage)
}

<form method="GET" action='@linkSearch(currentPage.getPage.get("intCurrPage"))'>

   <div class = "search-row search-input">
        <label for="emp_first_name"> FIRST NAME </label>
            <input type="text" id="emp_first_name"
                name='@appModel("search['empFirstName']").name'
                value='@currentPage.getSearch.get("empFirstName")'/>
            <input type="hidden" name="@appModel("search['exactFirstName']").name" value="0" />
            <input type="checkbox" name='@appModel("search['exactFirstName']").name' value="1"/>
                <p> Exact Match </p>
        </div>
        <div class = "search-row search-input">
            <label for="emp_last_name"> LAST NAME </label>
            <input type="text" id="emp_last_name"
                name='@appModel("search['empLastName']").name'
                value='@currentPage.getSearch.get("empLastName")'/>
            <input type="hidden" name="@appModel("search['exactLastName']").name" value="0" />
            <input type="checkbox" name='@appModel("search['exactLastName']").name' value="1"/>
            <p> Exact Match </p>
        </div>
  </div>
</form>

In my controller Application.class i have a search action:

/* form representation of AppModel.class */
public static Form<AppModel> appModelForm = Form.form(AppModel.class);

/**
* Handle the search submission form
*
* @param pageNum Current page number
* @return redirect back to list
*/
@Transactional(readOnly = true)
public static Result search(int pageNum) {
   appModelForm = appModelForm.bindFromRequest();
   System.out.println(appModelForm.data().get("search['exactFirstName']"));
   System.out.println(appModelForm.data().get("search['exactLastName']"));
   return redirect(routes.Application.list(pageNum);
}

how can i return a value of 1 if checkbox is search and 0. I tried the hidden and checkbox with the same name method but it is not working in my code. it always return 0. if i have something wrong with my code kindly correct me im only a newbie at this. thank you.