extends Questions

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Simple question. I made a class called Tester1 which extends another called Tester2. Tester2 contains a public string called 'ABC'. Here is Tester1: public class Tester1 extends Tester2 { public...
Arterial asked 29/7, 2011 at 23:3

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Possible Duplicate: Can I extend a class using more than 1 class in PHP? I have a class that has several child classes, however I am now adding another class which I also want to be a...
Glory asked 3/7, 2011 at 20:8

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I'm moving over to java from DotNet and this idea of extends is new. I've seen some posts that fully explain using List<? extends SomeAbstract> vs. List<? super SomeAbstract> vs. List&...
Manama asked 15/6, 2011 at 16:34

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Imagine that I have two Class A and B, B extends A, like class B extends A { .... } However, in my case, Class A is encrypted and can be only loaded by my ClassLoader at runtime (at compiling t...
Chopper asked 1/5, 2011 at 10:7

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Can someone explain to me what the difference between include_once 'classb.php' class A { $a = new B } and class A extends B { $a = new B } is? What advantages/disadvantages are there to ...
Undying asked 9/6, 2009 at 15:24

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I have 2 classes, main and extended. I need to use main vars in extended class. <?php class Main { public $vars = array(); } $main = new Main; $main->vars['key'] = 'value'; class Extende...
Aparicio asked 25/12, 2008 at 21:37

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I want to declare a method in an interface where the parameter of the method defined in implementing classes can be a subtype of a specific java class for example: interface Processor{ processReq...
Diffuse asked 27/1, 2011 at 18:13

3

Hi I have a question regarding $this. class foo { function __construct(){ $this->foo = 'bar'; } } class bar extends foo { function __construct() { $this->bar = $this->foo; }...
Polychasium asked 7/11, 2010 at 15:29

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I was wondering if you could help me out.. I have two classes, one extends the other.. Class B will be extended by various different objects and used for common database interactions.. Now I woul...
Kane asked 13/8, 2010 at 13:26

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In Java type arguments, does mean strictly subtypes only? or would E also suffice?
Riding asked 28/6, 2010 at 22:43

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I'm trying to make a variation on Array for a very specific purpose. When I have the following: public class TileArray extends Array { // Intentionally empty - I get the error regardless } Why ...
Evvoia asked 22/6, 2010 at 5:3

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I'm using "proxy" to extend various Swing classes in a Clojure GUI application, generally with code that looks something like: (def ^JPanel mypanel (proxy [JPanel] [] (paintComponent [#^Graphic...
Irresolution asked 16/6, 2010 at 20:45

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I'm writing (well, completing) an "extension" of Java which will help role programming. I translate my code to Java code with javacc. My compilers add to every declared class some code. Here's an e...
Helvellyn asked 18/5, 2010 at 8:23

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I am just trying to understand the extends keyword in Java Generics. List<? extends Animal> means we can stuff any object in the List which IS A Animal then won't the following also mean th...
Stubbs asked 4/4, 2010 at 18:1

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I want to create a class that takes two parameters. One should be typed simply as T. The other should be typed as something that extends both T and SomeInterface<T>. When I attempt this with ...
Caiman asked 30/3, 2010 at 7:46

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My friend and I are having a small argument. In my current Django Project, I have created a file called menu.html which will contain a bunch of links configured and formatted into a list. Instead o...
Polysynthetic asked 24/2, 2010 at 1:15

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I like to write my code slim and sexy (on the performance and memory side), I am using Mootools and was wondering if I was using it the correct way, also you can help me by telling me how to test m...
Masorete asked 12/11, 2009 at 9:12

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Following is a part of my code for a project: public class Body extends Point{ public double x, y, mass; public Body() { x = y = mass = 0; } public Body(double x, double y, double mass) { ...
Humphrey asked 21/4, 2009 at 13:46

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I have the following code: class SuperClass { public static String getName() { return "super"; } } class SubClass extends SuperClass { public static String getName() { return "sub"; } } public...
Disenthral asked 24/3, 2009 at 12:50

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In java, is there ever a case for allowing a non-abstract class to be extended? It always seems to indicate bad code when there are class hierarchies. Do you agree, and why/ why not?
Stickleback asked 6/2, 2009 at 11:10

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