Top "Extends" questions

extending PDO class

Below is the db connection class I came out with so far, but I am going to improve it by …

php mysql pdo extends

Generics : List<? extends Animal> is same as List<Animal>?

I am just trying to understand the extends keyword in Java Generics. List<? extends Animal> means we can …

java generics covariance extends contravariance

Extending vs. implementing a pure abstract class in TypeScript

Suppose I have a pure abstract class (that is, an abstract class without any implementation): abstract class A { abstract m(): …

typescript abstract-class extends implements

Using parent variables in a extended class in PHP

I have 2 classes, main and extended. I need to use main vars in extended class. <?php class Main { public $…

php class object extends

PHP - extended __construct

I was wondering if you could help me out.. I have two classes, one extends the other.. Class B will …

php class constructor extends

Android: How to use the onDraw method in a class extending Activity?

As a beginner, I've been building a simple counter application using a simple layout xml and a class called 'Counter', …

android android-activity sdk extends ondraw

extend base.html problem

I'm getting the following error: Template error In template /home/mo/python/django/templates/yoga/index.html, error at line 1 …

django templates extends

how to extend service with dependencies in angular 2

I have a parent service which has some dependencies like @Injectable() export class ParentService{ constructor(private http:Http, private customService:…

angular typescript extends angular2-services

What is the proper way to extend a class in another file?

This is what I have in foo.php class Foo { public $foo = NULL; public $foo2 = NULL; public function setFoo ($foo, $…

php class require extends

Codeigniter extending controller, controller not found

In Codeigniter 2.1.2 I want to create base controller and then extends from this controller. It does not work and I …

php codeigniter controller extends