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• dot length in java - finding its definition

  - by abson

  In which class the length variable is defined in java(one used for printing array length)? Will I be able to see it defined say in Object class? EDIT : Why was this field so designed(any thing related with security or memory efficiency)?

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• how to make a div to be center in html

  - by Mac Taylor

  hey guys , one simple way to make an object center in html is using align='center' but belive its not working for a div i used these methods ": style='text-align:center' style='left:50%'; even i use center tag <center> but i couldnt make my target div to be center what way u suggest ?!

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• Adding a MouseOverHandler to an Element?

  - by JP

  I would like to listen for the mouse over event in GWT 1.6. Since GWT 1.6 has introduced handlers and deprecated listeners I'm unsure as to how I can accomplish this with what little information exists. Note: I have an Element object. That's what I need to add the mouse handler to. I apologize for my lack of clarity. Thanks!

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• issue with Cayenne Entity Manager

  - by user224270

  Hi, I'm trying to persist an object into the database using Cayenne Entity Manager. And unfortunately I get the following error: org.apache.cayenne.CayenneRuntimeException: [v.3.0 Apr 26 2010 09:59:17] Commit Exception Caused by: com.mysql.jdbc.exceptions.MySQLSyntaxErrorException: Table 'myDatabase.auto_pk_support' doesn't exist Any idea how i could solve this issue? Thanks.

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• How to implement the Tea Algorithm with objective c ?

  - by superly

  hi,all i am a new object-c developer,i wanna implement Tea Algorithm, but i don't know more about the byte infomation ,so i cant control the string byte stream .who can tall me how to implement this Algorithm. thanks.

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• Rails 2.3.5 - f.label :attribute not being wrapped by field_error_proc

  - by Simon

  For some reason when an object's instance has errors, the f.label tags associated with error attributes isn't wrapped about the field_error_proc. Is this the default behaviour?

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• c++, when do you need/have to pass data as (*&)

  - by ra170

  I came across people passing data objects as: declaration: DataObject * data = 0; calling it as: SomeMethod( data ); definition of Somethod: void SomeMethod(SomeObject * & object) My obvious question is, when and why do you have to do this (& *)? Is it passing the pointer as reference?

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• Usage of initialize() vs. setup() in Mootools

  - by RyOnLife

  Mootools classes have an initialize() method that's called when a new object is instantiated. It seems that setup() is a commonly used method as well. Most classes I've observed call this.setup() from initialize() and nowhere else, which has left me wondering: What's the purpose of setup()? Why not just put the setup() code in initialize()? When does it make sense to use a setup() method?

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• insert with many to many relationship

  - by Luca Romagnoli

  hi, i have 2 object: user, group that have a relationship many to many i want create a user and associate some groups to it. How can i do it? thanks I've tried with this. but it's wrong: user = new User(); List<int> gruppi = new List<int>() {1,2}; utente.Group =db.Group.Where(p => gruppi.Contains(p.GruppoID)

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• Symfony: how to check if a variable saved in sfContext is set or not?

  - by user248959

  Hi, i have this code: if(sfContext::getInstance()->get('form_signin')){ //... } but im getting this error: The "form_signin" object does not exist in the current context. Any right way to check if a variable saved in sfContext is set or not ? Regards Javi

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• Stopping a service and waiting in VBScript

  - by BrettS

  How can I stop a service and wait for it to finish stopping in vbscript? I've got this so far: For Each objService in colServiceList If objService.DisplayName = "<my display name>" Then objService.StopService() End If Next Googling turned up a suggestion of using objService.WaitForStatus( ServiceControllerStatus.Stopped ), but running that gives me an error of "Object required: 'ServiceControllerStatus'".

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• C++ interview question

  - by benjamin button

  as i am not an expert in c++,i was not aware of the answer to this question asked in one of the interviews. lets say there is a base class pointer which is pointing to a base class object: baseclass *bptr; bptr= new baseclass; now if i do bptr= new derived; what is the problem here?

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• Getting Selected Items From WinForm ListBox?

  - by Soo

  I have a ListBox in a WinForm with multiselect enabled. The selected items appear to be stored in an object, how to I get their values?

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• empty base class optimization

  - by FredOverflow

  Two quotes from the C++ standard, §1.8: An object is a region of storage. Base class subobjects may have zero size. I don't think a region of storage can be of size zero. That would mean that some base class subobjects aren't actually objects. Opinions?

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• HTML form to JSON without modern libraries

  - by Rok

  Does anyone know of a simple javascript library that serializes a form DOM object to JSON? I know jQuery has the serialize method but since I am writing an app for IE mobile, I can't use any of the new fancy libraries, must be oldschool simple javascript, as light as possible. Cheers

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• I want to get the latitude and longatude from the Gmap control in to textboxes

  - by chamara

  Hi All. I tried with the following but it doesn't work var txtlat=document.getElementById('TextBox1').value=GMap1.getCenter().lat(); var txtlong=document.getElementById('TextBox2').value=GMap1.getCenter().lng(); It gives a java script error as "Object Doesn't support this property or method". How can i do this???? I really need help... Thank you!

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• Merge 2 arraycollection - Flex 3

  - by James

  How I actually merge both together? one arraycollection would contain value of 0...30 with Object name "sxx" with another arraycollection retrieve from database.

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• What value is hashCode() method is returning in java?

  - by Jothi

  What value is hashCode() method is returning in java?. i read that it is an memory reference of an object. when i print hascode value for new Integer(1), its 1. for String(a) - 97. so i confused. is it ascii or what type of value is?

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• How to set size (width,height) of externally loaded swf

  - by Raj

  Hi, I have loaded swf using following code, var loader:Loader = new Loader(); loader.load(new URLRequest("XYZ.swf")); addChild(loader); How do I control height and width of this loaded swf. I tried var mc = MovieClip(loader.loaderContentInfo.content); mc.width = 320; mc.height = 240; this gives null object error.

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• IBOutlets are always nil

  - by Jonas

  Hi, In IB I have subclassed the File Owner and the subclass loads my .nib. The subclass itself doesn't need access to the IBOutlets so they're instance variables in another class, which I added as a subclass of NSObject in the .nib. Then I connected the interface elements to that object. But somehow, in the class that "owns" the IBOutlets, they show up as nil. What am I doing wrong here?

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• Why was JRE /JVM not developed in Java?

  - by P Gauri Shankar

  Hi, I came to know that JRE /JVM was not built using Java. The Sun JRE was built in C and IBM JRE was built in SmallTalk (First Object Oriented Language). Pleas help me with answer. Thanks in advance.

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• Possible ways of representing data in memory (.net)

  - by This is it

  Hi What are the possible ways of representing data in memory in .Net (or in general)? It would be great if data could be sorted and looked up by key (or multiple keys). We are thinking to use collections, arrays, list of collections/arrays. One object would be in several collections (one sorted asc, other desc, etc.). Maybe this is not a good idea, and we would like to hear some other possible solutions. Thank you

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• Java: Storing information from database. What collections are appropriate?

  - by garvy

  I write an application in Java. I get form a database a table (clients) which contains fields like: name | surname | adress What is the best solution to store this data in my app? Should I create an object for each client and store these objects in a list or set? The table contains about 100 records and it's already sorted. Thanks in advance.

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• python 3 self class dict

  - by Jjang

  I am trying to create my own class of dictionary in python 3 which has a field of dict variable and setitem and getitem methods. Though, it doesnt work for some reason. Tried to look around but couldn't find the answer. class myDictionary: def __init(self): self.myDic={} def __setitem__(self, key, value): self.myDic[key]=value I'm getting: 'myDictionary' object has no attribute 'myDic' Any ideas? :)

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• How can I change the image displayed in an UIImageView programmatically?

  - by Thanks

  I have an IBOutlet to an UIImageView, but when I look at the UIImageView doc, I can't see any hint about how to programmatically change it. Do I have to fetch an UIImage object from that UIImageView?

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