int a = 1;
while (a++ < 6) {
    cout << a << " ";
}

$a = $c = true; 
$b = $d = false; 
if(($a && $b) || ($c && $d)) echo 'warunek1'; 
elseif(($a && $b) || ($c || $d)) echo 'warunek2'; 
elseif(($c && $d) || (!$a)) echo 'warunek3'; 
else echo 'warunek4';

function tekst() {
  var h = location.hostname;
  document.getElementById("info").innerHTML = h;
}

<Switch
    android:id = "@+id/switch1"
    android:layout_width = "wrap_content"
    android:layout_height = "wrap_content"
    android:background = "#00ffff"
    android:text = "Switch"
    tools:layout_editor_absoluteX = "176dp"
    tools:layout_editor_absoluteY = "389dp" />

bool wykonaj(int argument)
{
    int T[] = {4, 15, -2, 9, 202};
    for(int i=0; i<5; i++) {
        if(T[i] == argument)
            return true;
    }
    return false;
}