public string multiply(string first, string second)
{
var result = "";
/* 1234*1234
* 1234000
* 246800
* 37020
* 4936
* ---------
* 1522756
*/
var parts = new List <string>();
for (int i = 0; i < second.Length; i++)
{
var part = singleMultiplication(first, second.Substring(i, 1));
parts.Add(part + new string('0', second.Length - 1 - i));
}
var adder = new StringAdder();
result = parts.Aggregate((res, item) => adder.add(res, item));
return(result);
}
private void button1_Click(object sender, EventArgs e)
{
var first = "99";
var second = "123";
var adder = new StringAdder();
var multiplier = new StringMultiplier();
var summe = adder.add(first, second);
var produkt = multiplier.multiply(first, second);
System.Diagnostics.Debugger.Log(0, "", $"Resultate: Addition: {summe}, Multiplikation: {produkt}");
}
