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Articles indexed in April 2010

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  • Windows 7: Creating a password-protected task (NOT a programming question)

    - by Matthias
    Hello, I would like to configure a task like "child control software", so it would hibernate the pc at certain times. Is it possible to prevent modification (here: pausing) of a task through requiring the entering of the admin password to modify, EVEN THOUGH the currently-logged-in (and only) user is the admin account itself? (Do you know of any child control software that does NOT require an additional account yet is able to hibernate the system at certain times?) Thanks a lot! Matthias

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  • My EEEPc 900HA won't turn on/boot. Can it be fixed or does it need to be sent in?

    - by th3dude19
    My EEEPc 900HA stopped booting up out of nowhere. It went to sleep and when I went to wake it up, it wouldn't wake up. I powered down and went to power back up, but no go. The power light comes on solid and the battery/corded power light blinks consistently. There is no HDD activity or light activity. No BIOS. Just the lights described. I've troubleshooted the RAM, HDD, and internal power connections and everything checked out both on battery power and corded power. I've also reset the CMOS to no avail. What else can I do?

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  • view handler design pattern

    - by Mark Roberts
    I'm trying to figure out the origin of the view handler design pattern in software engineering. Many of the design patterns in software engineering were inspired by things which pre-date computers, and I was wondering if anybody had any insights on the origin of this particular pattern.

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  • Xcode Error: "Buildfile: build.xml does not exist! Build failed"

    - by user313574
    I am trying to use Xcode 3.2 for java tool development. My project has no problem building and shows it built the file build.xml fine and also shows up in file folder fine. When I try to run the .java file, I get the error: "Buildfile: build.xml does not exist! Build failed". Running "ant -find build.xml" in Terminal produces "not found". I believe the problem is that I need to point to my own build.xml location, but I have no idea how to change which directory it looks for this file. Any help is greatly appreciated. -nick Mac OS 10.6, Xcode 3.2.1 - method to create app: OrganizerNew from templateJava Tool

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  • Eclipse Ganymede for OS X contains no HTML formatter. Alternatives?

    - by thebossman
    In Eclipse 3.4 for Windows, the Source - Format option for formatting Java code was extended to format HTML code. However, for OS X, this option is disabled. Additionally, there are no formatting options in the Preferences. I've downloaded all the Web Tools for Eclipse and the option is still unavailable. Which plugin/feature allows for HTML formatting on Eclipse OS X, if there is one? Otherwise, what is a good Web-based alternative? Thanks, Adam

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  • How divide a string into array

    - by Ricky
    If I have the following plain string, how do I divide it into an array of three elements? {["a","English"],["b","US"],["c","Chinese"]} ["a","English"],["b","US"],["c","Chinese"] This problem is related to JSON string parsing, so I wonder if there is any API to facilitate the conversion.

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  • Is it possible to make an OS in python?

    - by None
    I was just wondering if it was possible to make an operating system in python. Nothing fancy. Maybe not even a "real" operating system with a kernel and all. Just a python program that is run when someone inserts the disc containing it that will make a fullscreen display on top of the installed os.

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  • How can i take only integer input from keyboard and if input is invalid how do i ask user agaian

    - by fari
    This is what i have written so far but when exception is raised it does not again ask teh user for input. do{ System.out.println("Enter the number of stones to play with: "); BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); String temp=br.readLine(); }while (key<0 && key>9); if(key<0 || key>10) throw new InvalidStartingStonesException(key); player1=new KeyBoardPlayer(); player2 = new KeyBoardPlayer(); this.player1=player1; this.player2=player2; state=new KalaGameState(key); } catch(NumberFormatException nFE) { System.out.println("Not an Integer");} catch(IOException e) { System.out.println(e); }

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  • useful Java books?

    - by Peter
    Hi all, I am looking for a Java book that gives you some useful Java tips and best practices. Seems like "Effective Java" is a good candidate? Do you have any other recommendations?

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  • textbox supplied route values with javaScript

    - by Maslow
    I've tried the bare method and the T4MVC method but so far both are routing me to the current URL instead of the default path with no arguments for the following action: public virtual ActionResult Index(byte? location, int? sublocation) { } So when I try Url.Action("Index","Locations", new {location="", system=""}) if I'm at a location already this method returns the path to where I'm already at instead of the default path with no arguments. As does the following method with T4MVC. <input type="button" value="Go" style="display:none" onclick="window.location='<%= Url.Action(MVC.Controller.Index()) %>/'+$('input#location').val()+'/'+$('input#sublocation').val()+'/';" /> How can I get the default route with no arguments?

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  • How to display custom view in UIActionSheet?

    - by 4thSpace
    I have a UIView with a date picker that I'd like to display in an action sheet. I'm using the following code: -(IBAction) button_click:(id)sender{ //UIActionSheet *sheet = [[UIActionSheet alloc] initWithTitle:@"the title" delegate:nil cancelButtonTitle:@"Cancel" destructiveButtonTitle:@"Destructive" otherButtonTitles:@"other", nil]; UIActionSheet *sheet = [[UIActionSheet alloc] init]; ActionSheetController *actionSheet = [[ActionSheetController alloc] initWithNibName:@"ActionSheetView" bundle:nil]; [sheet addSubview:actionSheet.view]; [sheet showInView:self.view]; } What I get is a little bit of the top part of the new view coming up from the bottom and that's it. If I comment the two middle lines of code and uncomment the top part to display a regular action sheet, it works fine. Any ideas what I might be doing wrong?

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  • Having ObservableCollection Trigger an update

    - by user275561
    So i have something along the lines of private ObservableCollection<ViewModel> _internal; public ObservableCollection<ViewModel> BoundInternal{get;set}; //this is Binded in the Itemssource like ItemSource={Binding BoundInternal} Now In my code i do something like BoundInternal=_internal, However the problem is the BoundInternal isn't trigger any collectionChanged event. I have to use the Add method. So I am wondering if there is a solution to this.

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  • Rating mechanisms

    - by Jasie
    Is there any place that showcases a bunch of different types of rating systems (like using multiple sliders, star ratings, up/down votes)? I'm trying to get ideas for a better rating system than just up/down (more criteria). (I'm not interested in the backend, but the human/computer interaction part of it).

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  • how to evaluate query by DMBS?

    - by Kevinniceguy
    How do we evaluate the below database query by DBMS? the query is something like : SELECT SUM(price) FROM Room r, Hotel h WHERE r.hotelNo = h.hotelNo and hotelName = 'Paris Hilton' and roomNo NOT IN (SELECT roomNo FROM Booking b, Hotel h WHERE (dateFrom <= CURRENT_DATE AND dateTo = CURRENT_DATE) AND b.hotelNo = h.hotelNo AND hotelName = 'Paris Hilton');

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  • Error in VBScript http request

    - by Nate
    I asked this question here, but it turns out the issue is in our server configuration. The .vbs script has been reduced to the following: Dim http Set http = CreateObject("MSXML2.ServerXMLHTTP") http.Open "GET" , "http://google.com", False http.Send This triggers the same error message every time: msxml3.dll: A security problem occurred. The permissions on the .dll are set correctly, and nothing else should be preventing access to that file, so what could be causing the problem?

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  • How to find polarity of a power supply that's lacking the customary markings

    - by Nosredna
    If I have a power supply (not a computer power supply, just a battery-replacing wall wart) and it doesn't have the usual polarity marking, how to I know if the tip is positive or negative? Update: I couldn't find my multimeter. I did find a model number on the power supply and typed it into Google. Some guy selling a bunch of power supplies on eBay had checked it and found that it was tip positive, which is what I needed!

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  • Creating get/set method dynamically in javascript

    - by portoalet
    I am trying to create a UserDon object, and trying to generate the get and set methods programmatically ( based on Pro Javascript book by John Resig page 37 ), and am testing this on Firefox 3.5 The problem is: in function UserDon, "this" refers to the window object instead of the UserDon object. So after calling var userdon = new UserDon(...) I got setname and getname methods created on the window object (also setage and getage). How can I fix this? function UserDon( properties ) { for( var i in properties ) { (function(){ this[ "get" + i ] = function() { return properties[i]; }; this[ "set" + i ] = function(val) { properties[i] = val; }; })(); } } var userdon = new UserDon( { name: "Bob", age: 44 });

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  • Change environment in cake php

    - by ryudice
    I just started with cakePHP for a small project, I have rails experience and I can see they are really similar however I cant seem to find where to chagne the environment you are working? I'm current working with test because I see all those debugging messages but I want to see how the design looks and I need to get rid of those messages so I need to change environment to production.

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  • css issue for alignment of divs

    - by jay
    Hi, I am working on this site philippdecor.com and I am having a difficulty in figuring out this css issue. When I on mouse over on "Main categories" that appears on the right side, it shows a drop down with links in it. Two things happens, 1) in IE(7) - the drop down hides behind another div 2) in both ie and ff, it pushes other div below that to go down and on mouse out, it looks fine. I am not sure which css property can fix this. please help me out code

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  • How to distinguish between two different UDP clients on the same IP address?

    - by Ricket
    I'm writing a UDP server, which is a first for me; I've only done a bit of TCP communications. And I'm having trouble figuring out exactly how to distinguish which user is which, since UDP deals only with packets rather than connections and I therefore cannot tell exactly who I'm communicating with. Here is pseudocode of my current server loop: DatagramPacket p; socket.receive(p); // now p contains the user's IP and port, and the data int key = getKey(p); if(key == 0) { // connection request key = makeKey(p); clients.add(key, p.ip); send(p.ip, p.port, key); // give the user his key } else { // user has a key // verify key belongs to that IP address // lookup the user's session data based on the key // react to the packet in the context of the session } When designing this, I kept in mind these points: Multiple users may exist on the same IP address, due to the presence of routers, therefore users must have a separate identification key. Packets can be spoofed, so the key should be checked against its original IP address and ignored if a different IP tries to use the key. The outbound port on the client side might change among packets. Is that third assumption correct, or can I simply assume that one user = one IP+port combination? Is this commonly done, or should I continue to create a special key like I am currently doing? I'm not completely clear on how TCP negotiates a connection so if you think I should model it off of TCP then please link me to a good tutorial or something on TCP's SYN/SYNACK/ACK mess. Also note, I do have a provision to resend a key, if an IP sends a 0 and that IP already has a pending key; I omitted it to keep the snippet simple. I understand that UDP is not guaranteed to arrive, and I plan to add reliability to the main packet handling code later as well.

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