class Animal { constructor(name) { this.name = name; } speak() { return `${this.name} makes a noise.`; } } class Dog extends Animal { speak() { return `${this.name} barks.`; } } let dog = new Dog('Rex'); console.log(dog.speak());
abstract class Figura { abstract double Pole(); abstract double Obwod(); } public class Prostokat extends Figura { private double a; private double b; ... /* Konstruktory */ ... /* Metody klasy */ } | |
| A | B |
public double Pole() { return a * b; } public double Obwod() { return 2*a + 2*b; } | public double Pole() { return a * b; } |
| C | D |
public double LiczPole() { return a * b; } public double LiczObwod() { return 2*a + 2*b; } | abstract double Pole() { return a * b; } abstract double LiczObwod() |
SELECT nazwisko, imie FROM mieszkancy WHERE miasto="Poznań" UNION ALL SELECT nazwisko, imie FROM mieszkancy WHERE miasto="Kraków"$licznik = 0; while ($licznik != $x) { echo $licznik; $licznik++; }
| W C++ i C#: | class Klasa2 : Klasa1 |
| W Java: | class Klasa2 extends Klasa1 |
| W Python: | class Klasa2(Klasa1): |
| a:hover { font-weight: bold; } |
for ($i = 0; $i <= 10; $i+=2) { ... }
| <?php $tablica = array(10 => "Perl", 14 => "PHP", 20 => "Python", 22 => "Pike"); asort($tablica); print("<pre>"); print_r($tablica); print("</pre>"); ?> |
| A Array ( [14] => PHP [10] => Perl [22] => Pike [20] => Python ) | B Array ( [0] => PHP [1] => Perl [2] => Pike [3] => Python ) | C Array ( [0] => Python [1] => Pike [2] => Perl [3] => PHP ) | D Array ( [10] => Perl [14] => PHP [20] => Python [22] => Pike ) |
| { text-align: right; } |
if (!isset($_COOKIE["ciastko"]) $zm = 1; else $zm = intval($_COOKIE["ciastko"]) + 1; setcookie("ciastko", $zm);
| GRANT ALL PRIVILEGES ON klienci TO adam REVOKE SELECT, INSERT, UPDATE ON klienci FROM adam |
| $x = 0; while($x < 5) { echo "$x,"; $x++; } Instrukcja 1 for ($x=0; $x<5; $x++) { echo "$x,"; $x++; } Instrukcja 2 for ($x=0; $x<5; $x+=2) { echo "$x,"; $x++; } Instrukcja 3 for ($x=0; $x<5; $x++) { echo "$x,"; } Instrukcja 4 for ($x=1; $x<=5; $x++) { echo "$x,"; } |