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• Checking if an overridden parent method exists before calling it

  - by Nate Wagar

  How would I go about ensuring that the overridden parent method exists before I call it? I've tried this: public function func() { if (function_exists('parent::func')) { return parent::func(); } } However the function_exists never evaluates to true.

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• Message reason why Execute method failed

  - by waanders

  I use the DAO method Execute to delete some records. If this fails this is clear by checking RecordsAffected (it will be 0). But is it possible to get the error message (for instance, to log or to show to the user)? I've try to delete the records by hand in the Table grid I get a clear dialog message, e.g. "The record cannot be deleted or changed because tabel x includes related records".

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• [Design Pattern] Real cases you use Factory (method) pattern and the benefits

  - by Ricky

  Hi folks: Can you provide practices about leveraging Factory (method) pattern? And the benefit you got greatly. Thanks.

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• Scanner method to get a char

  - by bizarrechaos

  What is the Scanner method to get a char returned by the keyboard in Java. like nextLine() for String, nextInt() for int, etc.

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• Real cases you use Factory (method) pattern and the benefits

  - by Ricky

  Hi folks: Can you provide practices about leveraging Factory (method) pattern? And the benefit you got greatly. Thanks.

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• Java keep printing a new line in my recursive method

  - by Abra Grace Libretto White

  I am trying to write a recursive method to print n number of asteriks in a line and create a new line at the end. So, TriangleOps.line(5); would print ***** This is the code I wrote: public static void line (int n){ if(n>0){ System.out.println("*"); line(n-1); }} instead it prints * * * * * with a lot of space at the end. Can anyone tell me how to remove the line breaks?

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• Inheritance from multiple interface with the same method name in C#

  - by masoud ramezani

  If we have a class that inherits from multiple interfaces, and the interfaces have methods with the same name, how can we implement these methods in my class? How we can specify that which method of which interface is implemented?

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• Create a custom button

  - by Beppi Menozzi

  Sorry if this is too basic. I created a new class that extends Button: public class MyButton extends Button { private Context ctx; public MyButton(Context context) { super(context); ctx = context; } private void click() { // DO WHAT I NEED (FOR EXAMPLE CHANGE BACKGROUND) } } How can make it possible that, when I setOnClickListener() from another class where I instantiated this object, the click() method is called automatically? Thanks.

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• Access the parameter type of a method reflectively

  - by kunjaan

  I have this but it always returns null private static String getParameters(Method aMethod) { Class<?>[] parameterTypes = aMethod.getParameterTypes(); for (Class<?> aParam : parameterTypes) { System.out.print(aParam.getName()); } return null; }

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• Does the respondsToSelector method have to exist?

  - by John Smith

  Does a method which I check for with respondsToSelector have to actually exist? What if I only define it in the interface part and fail to implement it? I'm looking at a poor-man's virtual function in Objective-C.

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• When do we make a call to use between Synchronised method and Synchronised Block

  - by Cricandcric.com

  Can any one please share their experience on "When do we make a call to use between Synchronised method and Synchronised Block" Any Performance Issues?

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• Test if a method is an override?

  - by Water Cooler v2

  Is there a way to tell if a method is an override? For e.g. public class Foo { public virtual void DoSomething() {} public virtual int GimmeIntPleez() { return 0; } } public class BabyFoo: Foo { public override int GimmeIntPleez() { return -1; } } Is it possible to reflect on BabyFoo and tell if GimmeIntPleez is an override?

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• how could i send parameter to a servlet in post method using javascript

  - by kawtousse

  Hi, I want to send a value to a servlet using the javascript and get it in servlet in post method. thanks.

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• if i call an interface method will it get the method body from implementation class and execute ?

  - by sij

  please forgive me if i am wrong: I have an interface Interface1 I have its implementation Imple implements Interface (all methods hav been implemented :) ) now consider a third class CheckCall can I do a call in the class CheckCall like I mention below Interface1 interface1; interface1.method(); all necessary imports have been done. Please tell me is it possible or not , if not then ok and if yes then tell me what will happen if i have more than one impl classes for the same interface and i am doing the same call.

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• include files in a method?

  - by fayer

  i want to have a class that includes all files for me. eg. Loader::loadZend // loads all zend libraries Loader::loadSymfony // loads all symfony components if i include a file in a method, does this become globally available? it seems that it doesnt work. maybe i have done something wrong, or is there a workaround for this? thanks

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• Be notified of method calls in .NET

  - by Alex

  Basically, what I want to do is to be notified whenever a specific method has been called. I was hoping I could accomplish this using Reflection, but my attempts haven't gotten me anywhere yet, so I'm hoping that perhaps somebody else with the same need has accomplished this before and can enlighten me. I figured using MethodInfo was the way to go, but like I said, I found nothing there that could help me accomplish what I wanted to do. Any suggestions, hints or solutions would be greatly appreciated.

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• Rails: i have a class method and i want to modify something of the instance

  - by Totty

  Rails: i have a class method and i want to modify something of the instance something like this: class Test < Main template :box def test # here I want to access the template name, that is box end end class Main def initialize end def self.template(name) # here I have to save somehow the template name # remember is not an instance. end end that is similar to the model classes: # in the model has_many :projects How do I do it?

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• Method that passes options to its object

  - by user321399

  In JavaScript I'd like to take an object and pass a parameter to it and based on the parameter hve a method that will pass settings to the parameter: functionName( parameter , settings ); Or functionName( parameter ).methodName( settings );

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• Java - Method Invocation & Execution

  - by Paul

  What is the difference between the invocation and execution of a method ? Are two the same thing ?

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• Why python does not have a writeln() method?

  - by systempuntoout

  If we need to write a new line to a file we have to code: file_output.write('Fooo line \n') Are there any reasons why Python not has a writeln() method?

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• class method in C#

  - by Bi

  I am new to C# and OO programming. What is the best way to send a status of a class-method to another class? Thanks

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• When To Use this.method()?

  - by Soo

  Hi SO, and happy Friday I have a question regarding the use of this.method();. My code seems to work without using the this., but I include it because it seems like the right thing to do. When should .this be used, and because it's presence doesn't always make a difference, what's the best practice for .this?

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• best method to have image links (for SEO)?

  - by Haroldo

  what's better in terms of being transparent to search engines: putting an image inside an 'a' tag? or using a background image for the 'a' tag? or another method i'm not aware of?!

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• what service class to use to incapsulate method

  - by xbsxbs

  I have to write a simple method extractArticle() that returns Article object which is extracted from Message object. I have MessageService and ArticleService classes intended to handle tasks like this. What service class is more correctly to use to incapsulate extractArticle() funcionality? $article = MessageService::extractArticle(Message $message); or $article = ArticleService::extractArticleFromMessage(Message $message);

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• Method equivalent of <%= expression %> in asp.net?

  - by Scott Weinstein

  Total noob question here, but not finding the answer via search. What is the method equivalant of <%= expression %? I'm looking to replace this: <% foreach (var intem in IE) { %> <%= Ajax.ActionLink(item,...) %> <% } %> with: <% foreach (var intem in IE) { SomeOutputCall(Ajax.ActionLink(item,...)); } %>

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