static void Main(string[] args)
{
TaxPayer[] user = new TaxPayer[4];
for (int counter = 0; counter < 4; ++counter)
{
user[counter] = new TaxPayer();
Console.Write("Enter Social Security Number for taxpayer " + (counter + 1) + " ");
user[counter].SocialSecurity = Console.ReadLine();
Console.Write("Enter Gross income for taxpayer " + (counter + 1) + " ");
user[counter].GrossIncome = Convert.ToDouble(Console.ReadLine());
}
for (int counter = 0; counter < 4; ++counter)
{
Console.WriteLine("Taxpayer #" + (counter + 1) + " SSN: " + user[counter].SocialSecurity
+ " income " + user[counter].GrossIncome.ToString("C2")
+ " Tax is " + user[counter].IncomeTax.ToString("C2"));
}
Console.WriteLine("\n-------------------------------------------------------");
Array.Sort(user);
for (int counter = 0; counter < 4; ++counter)
{
Console.WriteLine("Taxpayer #" + (counter + 1) + " SSN: " + user[counter].SocialSecurity
+ " income " + user[counter].GrossIncome.ToString("C2")
+ " Tax is " + user[counter].IncomeTax.ToString("C2"));
}
Console.ReadLine();
}
int IComparable.CompareTo(Object o)
{
int returnVal;
TaxPayer temp = (TaxPayer)o;
if (this.IncomeTax > temp.IncomeTax)
{
returnVal = 1;
}
else if (this.IncomeTax < temp.IncomeTax)
{
returnVal = -1;
}
else
{
returnVal = 0;
}
return(returnVal);
}