<RadioButton Content="opcja1" />
<RadioButton Content="opcja2" />
<Button Content="OK" Width=75 Click="fun1"/>

private void fun1(object sender, RoutedEventArgs e) { ... }

function policz($Z) { 
 while($Z < 5) { 
 $Z += 2 * $Z + 1; 
 } 
 return $Z; 
 }

class Owoc {
   public $nazwa;
   private $kolor;
   function set_nazwa($nazwa) {
     $this->nazwa = $nazwa;
   }
}

int a = 1; 
for (int i=1; i < 5; i++) 
{ 
a = a * i; 
} 
cout << a;

List<int> wykaz = new List<int>();

<table border="1" cellspacing="0" cellpadding="10">
    <tr>
        <td rowspan="2">&nbsp;</td>
        <td>&nbsp;</td>
    </tr>
    <tr>
        <td>&nbsp;</td>
    </tr>
</table>

string[] langs = {"C++", "C#", "Java", "Python"};
foreach (string i in langs) {
    Console.WriteLine(i);    ???
}

if (!isset($_COOKIE["ciastko"]) 
 $zm = 1; 
 else 
 $zm = intval($_COOKIE["ciastko"]) + 1; 
setcookie("ciastko", $zm);