private void bt_mehet_Click(object sender, EventArgs e)
{
Verem <char> stack = new Verem <char>(255);
string str = eredeti.Text;
stack.Clear();
for (int i = 0; i < str.Length; i++)
{
stack.Push(str[i]);
}
char temp;
string reversed = "";
for (int i = 0; i < str.Length; i++)
{
stack.Pop(out temp);
reversed += temp;
}
megcserelt.Text = reversed;
}