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• Closest Ruby representation of a 'public static final' class variable in Java?

  - by Hosh

  Given the Java code below, what's the closest you could represent this private static final variable in a Ruby class? public class DeviceController { ... private static final Device myDevice = Device.getDevice("mydevice"); ... public static void main(String args[]) { ... } }

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• how can i access a value on a cell in tableview from different class?

  - by ahmet732

  I can hold the value of touched cell but I cannot pass that value to another class or call from that class. SearchTableViewController.m **deneme= [[NSMutableArray alloc]init]; deneme=[tableData objectAtIndex:indexPath.row]; NSLog(@"my row = %@", deneme); //I can hold one of the selected or touched rows in table HistoryTableViewController.m **SearchTableViewController *obj = (SearchTableViewController *)[self.tabBarController.viewControllers objectAtIndex:11]; NSLog(@"my 2nd row= %@", [obj deneme]); //It doesn't retrieve here

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• How can the AssemblyName class be used for existing Assembly's?

  - by IbrarMumtaz

  This is another exam related question. I want to know how can I use the AssemblyName class to represent an existing assembly that already exists on disk??? I am talking about from the perspective of using the AppDomain's instance method .Load(), that takes an AssemblyName object as a parameter. I know what MSDN has to say about what the .Load() method was designed for but that aside, I still want to know how to use it !!!

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• Call a block method on an iterator: each.magic.collect { ... }

  - by blinry

  I have a class with a custom each-method: class CurseArray < Array def each_safe each.do |element| unless element =~ "fuck" yield element end end end end And want to call block methods on those "selected" elements. For example: curse_array.each_safe.magic.collect {|element| "#{element} is a nice sentence."} I know there is a way to do this, but I've forgotten. Please help! :-)

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• Static field in class - Is it a re-instantiated for each static method call?

  - by Jamie Dixon

  If I have a static class with a static field such as: private static myField = new myObject(); I then have a bunch of static methods that use myField. Is myField re-instantiated for each method call? My guess is that it's instantiated the first time a method is called that uses it and it remains in memory until the GC clears it up? Cheers for any pointers :-)

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• error in creating my own Robot class in android..

  - by manju

  Hi All, I have decided to create my own Java's Robot class in android to take screen capture..i have written the source code of the robot class by my own but the problem is here, the following line in the code is throwing compilation error..saying "The method createRobot(Robot, GraphicsDevice) in the type ComponentFactory is not applicable for the arguments (Robot, GraphicsDevice)" peer = ((ComponentFactory)toolkit).createRobot(this, screen); Can anyone suggest me what would be the solution.... thanks..

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• How to make the class constructor private in Ruby?

  - by Leonid Shevtsov

  class A private def initialize puts "wtf?" end end A.new #still works and calls initialize and class A private def self.new super.new end end doesn't work altogether So what's the correct way? I want to make new private and call it via a factory method.

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• a class function with if(this==NULL) test got compiled?

  - by James

  I saw this code snippet during our lab and it actually compiles in MSVC2008 and G++. void LinkList< class T ::Insert(T n) { if (this == NULL) // some code here } As far as I know the this must not be null since you cannot call a class functions in c++ if it wasn't instantiated. Is this a valid code? if so what's the reason behind and where it can be useful?

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• How to combine ASCII text files, then encrypt, then decrypt, and put into a 'File' Class? C++

  - by Joel

  For example, if I have three ASCII files: file1.txt file2.txt file3.txt ...and I wanted to combine them into one encrypted file: database.txt Then in the application I would decrypt the database.txt and put each of the original files into a 'File' class on the heap: class File{ public: string getContents(); void setContents(string data); private: string m_data; }; Is there some way to do this? Thanks

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• In actionscript, why is my static class member variable not the same when accessed from different pa

  - by Ryan M

  I have an actionscript class with a static member variable defined. public class A { public static var x:int; } When I try to access it from different parts in my code I don't get the same value in each spot. A.x I am accessing the variable in different modules that are loaded, so they are all in their own separate .swf file. Could this by why?

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• How do I add information to an exception message without changing its class in ruby?

  - by Andrew Grimm

  How do I add information to an exception message without changing its class in ruby? The approach I'm currently using is strings.each_with_index do |string, i| begin do_risky_operation(string) rescue raise $!.class, "Problem with string number #{i}: #{$!}" end end Is there a better way?

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• Flex: How do you list private attributes of a class?

  - by mensonge

  Hi, I try to serialize objects with their private attributes, in Flex. The introspection API does not seem to allow it: "The describeType() method returns only public members. The method does not return private members of the caller's superclass or any other class where the caller is not an instance." Is there another way for an instance to know the name of its private members?

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• How do i assigned the type of any object to a .NET generic method?

  - by Usman

  Suppose that I have created a method like this private void Test<t>(t str) { } Now from another method i call it private void BtnClick() { string a = ""; test<Here I Want To assign The Type what ever the type of 'a' is>(); } How can I do this ?

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• How to make user control partial classes aware of controls declared in the base class?

  - by Helephant

  Do we have to do something special to have ASP.NET partial classes aware of controls that are declared in our user control's base classes? The partial classes keep generating declarations for controls in the base class which mean the controls in the base class get hidden and are null.

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• How to run a single test method in simpletest unittest class ?

  - by shikhar

  This is my Unit Test class <? require_once '../simpletest/unit_tester.php'; require_once '../simpletest/reporter.php'; class Academic extends UnitTestCase { function setUp() { } function tearDown() { } function testAc1() { } function testAc4() { } function testAc7() { } } $test = new Academic(); $test->run(new HtmlReporter()); ?> When I run this script all methods viz., testAc1, testAc4, testAc7 etc are run. Is there a way to execute just a single method ? Thanks, Shikhar

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• How can I know whether an instance implements a method in Objective-C ?

  - by Thomas Joulin

  I would like to know if an instance implements a specific method. I could use respondsToSelector: but it returns YES if the instance inherits the method... I could loop through the methods of class_copyMethodList(), but since I might want to check a lot of instances, I wanted to know if there was a simpler solution (like repondsToSelector:, but restricted to the class itself...)

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• How to write a contains statement to match a member of a class?

  - by afuzzyllama

  If I have the following structure: Public Class UserData Public ID As String Public Name As String End Class How can I select it in a conditional like this? Dim myUsers As New List(Of UserData) If myUsers.Contains(.ID = "1") = True Then ... I know that myUsers.Contains(.ID = "1") is totally wrong, but I am curious how to do something like that? Is it possible? Is this a job for LINQ?

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• Enterprise Library--Validator.cs How Abstract Class having definition??

  - by Soham

  Consider this piece of code: public abstract class Validator { protected Validator() { } protected abstract void ValidateCore(object instance, string value, IList<ValidationResult> results); public void Validate(object instance, string value, IList<ValidationResult> results) { if (null == instance) throw new ArgumentNullException("instance"); if (null == results) throw new ArgumentNullException("results"); ValidateCore(instance, value, results); } } TAKE a look at Validate() overload, how can an abstract class have definitions like this?

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• Can I create class properties during __new__ or __init__?

  - by 007brendan

  I want to do something like this. The _print_attr function is designed to be called lazily, so I don't want to evaluate it in the init and set the value to attr. I would like to make attr a property that computes _print_attr only when accessed: class Base(object): def __init__(self): for attr in self._edl_uniform_attrs: setattr(self, attr, property(lambda self: self._print_attr(attr))) def _print_attr(self, attr): print attr class Child(Base): _edl_uniform_attrs = ['foo', 'bar'] me = Child() me.foo me.bar #output: #"foo" #"bar"

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• How can I access class variable inside a NSMutableArray object?

  - by ahmet732

  I have "Man" class which also has 2 variable : "description" and "name". At a point, I created Man class and initialize with its own variables (description and name) and pass it to NSMutableArray "collector". How can I access description now ? I tried but i could not get the property

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• Why do you have to mark a class with the attribute [serializable] ?

  - by Blankman

  Seeing as you can convert any document to a byte array and save it to disk, and then rebuild the file to its original form (as long as you have meta data for its filename etc.). Why do you have to mark a class with [Serializable] etc? Is that just the same idea, "meta data" type information so when you cast the object to its class things are mapped properly?

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• What .NET serializers have fixed size output for a given class?

  - by Jader Dias

  XML based serializers have variable size output for a given class. I can't use them to append data to my Memcached list, since I won't be able to retrieve that information later. But if I knew my serializer produced a fixed size output (N bytes), I could retrieve my data by splitting my list in N bytes chunks and then deserializing those chunks individually. I have created my own serializer for my class, but what other serializers I could use?

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• How to debug if using the java.io.Console class (netbeans).

  - by cchampion

  The java.io.Console class requires there to be a Console device (window). How can I debug if I am using this class? I'm using netbeans IDE.

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• Is there a way to restrict a public method access to only a specific class in C#/.Net?

  - by Anon

  I have a class A with a public method in C#. I want to allow access to this method to only class B. Is this possible? How?

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• Declare array as return type in gen-class method declaration in Clojure.

  - by Anton Kazennikov

  How to declare an array in method declaration in gen-class? (ns foo.bar (:gen-class :methods [[parseString [String Object] Object]])) That works fine. But the return type is really an array. How I can declare that so Java can understand it?

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