/// <summary>
/// Returns a boolean indicating if this paygrade is a seaman.
/// </summary>
/// <param name="paygrade"></param>
/// <returns></returns>
public static bool IsSeaman(this Paygrade paygrade)
{
return(paygrade.IsEnlistedPaygrade() && new[] { 1, 2, 3 }.Contains(Int32.Parse(paygrade.Value.Where(char.IsNumber).First().ToString())));
}
/// <summary>
/// Returns a boolean indicating if this paygrade is a petty officer.
/// </summary>
/// <param name="paygrade"></param>
/// <returns></returns>
public static bool IsPettyOfficer(this Paygrade paygrade)
{
return(paygrade.IsEnlistedPaygrade() && new[] { 4, 5, 6 }.Contains(Int32.Parse(paygrade.Value.Where(char.IsNumber).First().ToString())));
}