Code to create a SharePoint list with predefined permission

This is just a sample code for me to create a list with a predefined permission

private void SetPermissionsForTheList(SPList selectedList)
{
          // breaks the inheritance from the parent
         selectedList.BreakRoleInheritance(true);

		 //removes all the permissions from the list, except for 'site - admins'

         while (selectedList.RoleAssignments.Count > 0)
                selectedList.RoleAssignments.Remove(0);

         if (selectedList.RoleAssignments.Count == 0)
         {
            // get the defined site admins group
               SPGroupCollection groupCollection = selectedList.ParentWeb.SiteGroups;
              SPGroup group = groupCollection["Site - Admins"];

            // get the full access role definition
              SPRoleDefinitionCollection roleDefCollection = selectedList.ParentWeb.RoleDefinitions;
              SPRoleDefinition roleDefinition = roleDefCollection [0];

			// create a role assignment based on the site admin group
            // and bind to the full access role definition
            SPRoleAssignment roleAssignment = new SPRoleAssignment((SPPrincipal)group);
            roleAssignment.RoleDefinitionBindings.Add(roleDefinition);
            selectedList.RoleAssignments.Add(roleAssignment);
         }
}