extends

问题 I am using phpstorm as IDE. And in my class.php , I started the class as class MyClass extends Database{ function sample(){ $this->query(); } } the query() is in the class Database . But phpstorm shows a warning that Method 'query' not found in class MyClass. Referenced method is not found in subject class. But the function is working without any problem. Is there any problem with this code style? Or Do I need to try a different approach? I searched many websites. But didn't get a proper

问题 I'm running into a problem working around limitations in Zend Framework 1.x and I can't replace or update it at the moment. I have a novel idea but I'm not sure if it's possible. The basic question is Is it possible to instantiate an extending child object, but then extract the parent object afterward for serialization? To illustrate why, essentially the Zend_Mail class has some really stupid limitations and type checks on its methods, in my case specifically $mail->setType() . My thought is

问题 @extends('layouts.app') does not work on some of my web pages. it just shows the content without the layout. why is this happening? I already tried making a new layout folder and calling it but still some pages still doesn't show the layout. both show.blade.php and create.blade.php doesn't display the layout it only shows like this app.blade.php this is the navbar.blade.php 回答1: Your CSS file maybe not loading properly. change your app.blade.php file like below, <link rel="stylesheet" href= "

问题 I seem to have trouble extending static classes in PHP. PHP Code: <?php class InstanceModule { public static $className = 'None'; public static function PrintClassName() { echo self::$className . ' (' . __CLASS__ . ')<br />'; } } class A extends InstanceModule { public static function Construct() { self::$className = "A"; } } class B extends InstanceModule { public static function Construct() { self::$className = "B"; } } ?> My calling code, and what I'd expect: <?php //PHP Version 5.3.14 A:

问题 I have some abstract form : @FormData(value = AbstractMyFormData.class, sdkCommand = FormData.SdkCommand.CREATE) public abstract class AbstractMyForm extends AbstractForm { ... @Order(10.0) @ClassId("MyForm.MyTable") public class MyTable extends AbstractMyTableField { ... } } This form data has some table (MyTable class as template) inside : public abstract class AbstractMyFormData extends AbstractFormData { private static final long serialVersionUID = 1L; public AbstractMyFormData() {}

问题 I'm trying to write an extension to SeekBar to customise it's behaviour. I'm having problems getting the most basic form of the new class to run in the emulator. I can't even get a class that doesn't add any new functionality to start up. Can anybody tell me what basic thing I'm missing out here? Why won't the app initialise correctly when I try to use an ExtendedSeekBar? Where do I find details of the exception that has occurred? I running Eclipse on XP, using Android SDK tools revision 10.

问题 I am struggling to extend the android.hardware.Camera class. My problem is that when I try to call the constructor I am having problems with the visibility. So I am wondering whether it is possible at all to do something like this: import android.hardware.Camera public class MyCamera extends Camera { public MyCamera(Context context) { super(context); } } 回答1: it would make the code much more understable and less complex There are many ways to have an API that is "more understandable and less

问题 I have already looked upon the the usage of interface, abstract classes and inheritance. I see that each have their uses but, I am still kind of confused. I know that generally a class can extend only another class, although some may support multiple inheritance, but it can implement more than one interface (which is probably the main reason for using an interface). However this class can also be extended by another class If I am correct. I have also seen that abstract classes may be faster

问题 I may be wrong as I have not got too much experience with Java, but here is a question. I have a class which contains many methods (basically it is a simple library). I create an object of this class let's say MyLibrary obj = new MyLibrary(parameters); The parameters set up any necessary functionality for the library to run correctly. Then I can call obj.getSomething / obj.setSomething / obj.createSomething etc etc... In my main class I really need only one this kind of library object. Now...

问题 I'm at a loss. I'm posting to a Coldfusion8 cfc via Ajax and while it works fine on my local machine, on the live server I cannot call any function in this CFC or it's extended CFC. I want to do this: <cfset LOCAL.response = THIS.commit() /> If I dump: <cfdump output="e:\path\to\dump.txt" label="catch" var="committing"> <cfdump output="e:\path\to\dump.txt" label="catch" var="#THIS#"> <cfset dickhead = THIS.Commit() > <cfdump output="e:\path\to\dump.txt" label="catch" var="out"> I'm getting: