private void radioButton1_CheckedChanged(object sender, EventArgs e)
{
radioButton2.Checked = false;
listBox1.Items.Clear();
for (int i = 0; i < p.Length; i++)
{
for (int j = i + 1; j < p.Length; j++)
{
if (p[j].MladjiOd(p[i]))
{
Primerak pom = p[i];
p[i] = p[j];
p[j] = pom;
}
}
}
for (int i = 0; i < p.Length; i++)
{
if (p[i] is Knjiga)
{
listBox1.Items.Add("KNJIGA: " + p[i].Info());
}
else if (p[i] is Casopis)
{
listBox1.Items.Add("CASOPIS: " + p[i].Info());
}
}
}
public bool MladjiOd(Primerak p)
{
return(god > p.god);
}
public bool StarijiOd(Primerak p)
{
return(god < p.god);
}