What am I Doing Wrong?

Question

// GetData() method accepts order number and quantity

// that are used in the Main() method

// Price is $3.99 each

using System;

using static System.Console;

class DebugEight1

{

static void Main()

{

int orderNum, quantity;

double total;

const double PRICE_EACH = 3.99;

GetData(orderNum; quantity);

total = quantity * PRICEEACH;

WriteLine("Order #{0}. Quantity ordered = {1}",

orderNum, quantity;

WriteLine("Total is {0}", total.ToString("C"));

}

public static void GetData(out order, out amount)

{

String s1, s2;

Write("Enter order number ");

s1 = ReadLine;

Write("Enter quantity ");

s2 = ReadLine;

order = ConvertToInt32(s1);

amount = ConvertToInt32(s2);