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  • How can I put a string and an integer into the same array?

    - by Stelios M
    I have to following code. I want this to return an array e.g. arg[] that contains at arg[0] the number of the rows of my cursor and at arg[1] String(0) of my cursor. Since one is integer and the other is string I have a problem. Any ideas how to fix this? public String[] getSubcategoriesRow(String id){ this.openDataBase(); String[] asColumnsToReturn = new String[] {SECOND_COLUMN_ID,SECOND_COLUMN_SUBCATEGORIES,}; Cursor cursor = this.dbSqlite.query(SECOND_TABLE_NAME, asColumnsToReturn, SECOND_COLUMN_SUBCATEGORIES + "= \"" + id + "\"", null, null, null, null); String string = cursor.getString(0); int count = cursor.getCount(); String arg[] = new String[]{count, string}; cursor.close(); return arg; } The cursor and the results and correct i just need to compine them to an array in order to return that.

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  • When is a program limited by the memory bandwidth?

    - by hanno
    I want to know if a program that I am using and which requires a lot of memory is limited by the memory bandwidth. When do you expect this to happen? Did it ever happen to you in a real life scenario? I found several articles discussing this issue, including http://www.cs.virginia.edu/~mccalpin/papers/bandwidth/node12.html http://www.cs.virginia.edu/~mccalpin/papers/bandwidth/node13.html http://ispass.org/ucas5/session2_3_ibm.pdf The first link is a bit old, but suggests that you need to perform less than about 1-40 floating point operations per floating point variable in order to see this effect (correct me if I'm wrong). How can I measure the memory bandwidth that a given program is using and how do I measure the (peak) bandwidth that my system can offer? I don't want to discuss any complicated cache issues here. I'm only interested in the communication between the CPU and the memory.

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  • jQuery finding 'nth-child' value

    - by Rich
    Hi, I have a ul set up as navigation, which I'll be animating on hover. As all the nav items are different widths, I'll be storing their default widths in an Array, so that on hover out, these widths can be passed back in to the animate method. What I need is a way to find what 'nth-child' the element is in order to retrieve the correct width from the array. Something like: var count = $(this).count(); //obviously this isn't right! So that then I can do: $(this).animate({'width':array(count)}, 400); Any suggestions would help me a lot - and if there's a better way to do this kind of thing I'd gladly accept pointers!

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  • RESTful web service, PUTting an unnamed resource?

    - by James L
    I have a back-end service that creates unique identifiers for resources. The general idea is that resources are saved and versioned, so you can perform: GET http://service/sales/targets/7818181919/latest or GET http://service/sales/targets/7818181919/4 for version 4, and so on. My question is about the most correct way to upload these resources in the first place. How about: PUT http://service/sales/targets/ returning 303 See other /service/sales/targets/ It seems a little wrong as you should PUT and GET from exactly the same place using a resource-oriented interface, but I can't think of a better option. Any ideas?

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  • Duplicate records

    - by czuroski
    Hello, I am using nHibernate for db persistence. I have a one-to-many relationship defined between 2 tables. When I query and try to get data, I am getting the correct number of rows from the "many" table, but the rows are duplicates of the first row returned. table1 (one), table2 (many). I create a criteria query to get a certain record from table1. I then expect to get all associated records from table2. ie, table1 holds orders, table2 holds items. I query table1 to get an order which has 4 items. I expect to see each of those 4 items from table2, but all I am seeing is the 1st item repeated 4 times. Does anyone have any idea what might be happening?

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  • Windows Service is not Working.

    - by prateeksaluja20
    I had made a windows service in visual studio 2008 in C#.inside the service i had written only single line code try { System.Diagnostics.Process.Start(@"E:\Users\Sk\Desktop\category.txt"); } catch { } then i add the project insatller & change the serviceProcessInstaller1 Account proerty as local system Also change the serviceInstaller1 start type proerty as Automatic. then i build the project.it was succesfull. after that i add another project that was setup project.i had added pprimary project output & i had added the custom action as "Primary output from DemoWindowsService (Active)".then buil the setup.setup was build sucessfully.then i install the setup & then went to services start the service.service stated properly butit was not performing the task. i had checked the path is correct & also i tried to do System.Diagnostics.Process.Start(@"E:\Windows\system32\notepad.exe") but still result is same.i tried alot but not getting the ans soleasse help me to solve this problem.

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  • what's wrong with this code..

    - by rockers
    $('#PbtnSubmit').click(function() { if ($("#PricingEditExceptions input:checkbox:checked").length > 0) { var chec = $('#PricingEditExceptions input[type=checkbox]:checked'); var strIDs = chec.map(function() { return $(this).val(); }).get().join(","); alert(PMstrIDs); $('#1_exceptiontypes').attr('value', exceptiontypes) $('#1_PMstrIDs').attr('value', PMstrIDs); } else { alert("please select atleast one exception"); return false; } }); var checked = $('#PricingEditExceptions input[type=checkbox]:checked'); this code returns correct value in Firefox but not in IE8.. is that something need to change? why I am not getting all the checked checkboxes in IE8? please can anybody help me out? thanks

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  • Inter-project dependencies

    - by Mike Hordecki
    Hello! I'm doing some Delphi (2010) work this summer, and I've stumbled upon this problem: My project consists of reusable backend library and a bunch of GUIs that tap into its interface. In this circumstances I've decided to make the backend and GUIs separate projects within single project group (I hope my train of thought is correct). The problem is, how can I include units from the backend in a GUI project? I've tried to modify Project Options > Directories and Conditionals but compiler still complains about being unable to find proper .dcu's. Any ideas? Your help will be appreciated.

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  • Form validation in JAvascript with Regexp

    - by Nikita Barsukov
    I have a webpage with an input field where only digits are allowed. The input field has an onkeyup event that starts this validating function: function validate() { var uah_amount = document.getElementById("UAH").value; var allowed = /^\d+$/; document.getElementById("error").innerHTML = document.getElementById("UAH").value; if (!allowed.test(uah_amount)) { document.getElementById("error").style.backgroundColor = "red"; } } Everything works as I expect until I hit Backspace button to remove some characters. In this case function always behaves as if I entered letters. How to correct this?

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  • What is the best way for the application to refer to the user?

    - by user292450
    Forgive my noobishness, first time poster on stackoverflow! I can have the application read: "view your messages" "view my messages" "edit your profile" "edit my profile" etc. and others like that. Is one of these more correct then the other? I suppose that I could use neither and just leave it without any pronoun, but I would rather not. The person grading is a real stickler for "grammar" in code. Any input would be appreciated!

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  • ASP.NET MVC vs. Jquery/AJAX (Where to draw the dividing line?)

    - by punkouter
    I am learning MVC and I understand the basics now. It is very good for CRUD pages and has built in HTTP methods to post/get edits/updates. That is nice. This is all very testable by just creating a new controller and testing it. But I was thinking about other web page scenerios when using MVC. What about a page that has 2 listboxes that you add/remove users with. (A button will move the user from one listbox to another) This would be done using Jquery/Javascript... But then what happens to testing? How do you test adding/removing users from a listbox like that example? It seems to me the more jquery you use the less testable the page becomes right? When you get beyond basic forms being filled out then you need to use something more than the standard MVC pages. What is the correct philosophy on this on when am I not understanding ?

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  • Best method to print using wpf 4

    - by user293545
    Howdy, I need to be able to print from my wpf application. I am just trying to print a transaction receipt. I have found that using PrintDialog pDialog = new PrintDialog(); pDialog.PrintVisual(new Receipt("transaction name","my store"), "documentTitle"); Does the trick very nicely. "Receipt() is a usercontrol that renders out the transaction details. How are you meant to do this? is this the correct way? what do I do if I dont know the printer that is going to be used? should I make the usercontrol only as wide as a thermal receipt printer? Any suggestions would be great!

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  • Return the difference between the lowest and highest key

    - by stan
    This is a past exam paper i am attempting and have no way to check if the out put is correct as i am not capable of building one of these things the question is in the title class Tree{ Tree left; Tree right; int key; public static int span(Tree tree) { if ( tree == null ){ return null; } if( tree.left != null) int min = span(tree.left); } if( tree.right != null){ int max = span(tree.right); } return max - min; } } Could anyone suggest what i need to change to get 5/5 marks :D - the only thing we have to do is write the span method, the header was given for us Thanks

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  • How do I add on multiple $_POST['row'] and variables?

    - by Ralph The Mouf
    I am struggling to find out the syntactically correct way in which to add on more variables and rows to these statements: /* WANT TO ADD ON FIVE MORE $_POST[''] */ if(isset($_POST['check_prof']) && $_POST['check_prof'] == 'checked') { $check_prof = "checked"; }else{ $check_prof = "unchecked"; } /* SAME HERE, WANT TO ADD THE OTHER FIVE IN HERE AS WELL */ $query = "UPDATE `Users` SET `check_prof` = '" . $check_prof . "' WHERE `id` = '" . $auth->id . "' LIMIT 1"; mysql_query($query,$connection); $auth->refresh(); }

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  • c++ - what is faster ?

    - by VaioIsBorn
    If we have the following 2 snippets of code in c++ that do the same task: int a, b=somenumber; while(b > 0) { a = b % 3; b /= 3; } or int b=somenumber; while(b > 0) { int a=b%3; b /= 3; } I don't know much about computer architecture/c++ design, but i think that the first code is faster because it declares the integer a at the beginning and just uses it in the while-loop, and in the second code the integer a is being declared everytime the while-loop starts over. Can some one help me with this, am i correct or what and why ?

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  • Reading in multiple words for prolog

    - by prolog123456789
    Im running prolog via poplog on unix and was wondering if there was a way to read in multiple words (such as encase it into a string). For instance, read(X) will only allow X to be 1 term. However, if I encase the user input with "", it will return a list of character codes, is this the correct method as I can not find a way to convert it back to a readable string. I would also like to be able to see if the multiworded string contains a set value (for instance, if it contains "i have been") and am unsure of how i will be able to do this as well.

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  • Get _id from MongoDB using Scala

    - by user2438383
    For a given JSON how do I get the _id to use it as an id for inserting in another JSON? Tried to get the ID as shown below but does not return correct results. private def getModelRunId(): List[String] = { val resultsCursor: List[DBObject] = modelRunResultsCollection.find(MongoDBObject.empty, MongoDBObject(FIELD_ID -> 1)).toList println("resultsCursor >>>>>>>>>>>>>>>>>> " + resultsCursor) resultsCursor.map(x => (Json.parse(x.toString()) \ FIELD_ID).asOpt[String]).flatten } { "_id": ObjectId("5269723bd516ec3a69f3639e"), "modelRunId": ObjectId("5269723ad516ec3a69f3639d"), "results": [ { "ClaimId": "526971f5b5b8b9148404623a", "pricingResult": { "TxId": 0, "ClaimId": "Large_Batch_1", "Errors": [ ], "Disposition": [ { "GroupId": 1, "PriceAmt": 20, "Status": "Priced Successfully", "ReasonCode": 0, "Reason": "RmbModel(PAM_DC_1):ProgramNode(Validation CPG):ServiceGroupNode(Medical Services):RmbTerm(RT)", "PricingMethodologyId": 2, "Lines": [ { "Id": 1 } ] } ] } },

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  • Passing class method as selector problem.

    - by Anoide
    Hi, I want to build a selector from a class method. I'm doing it this way: NavigationTreeActionHandler* handler=[NavigationTreeActionHandler self]; NavigationTreeNode* bombsNode=new NavigationTreeNode("Bombs","bigbomb.tif" ,handler,@selector(BigBombButtonPressed:)); I need to pass to NavigationTreeNode the target and the selector to the target method. I try to get the target using the self property of the class object (Don't know if htis is the correct way to do it). Then I get the selector for the class method I want to call on the class. Everything compiles ok but it fails when I use: [[handler class] instanceMethodSignatureForSelector:selector]; I get a nil and don't really know why... could anybody help please? Thanks in advance, Olson.

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  • What types of conditions can be used for conditional compilation in C++?

    - by user1002288
    This is an exam question for C++: Which of the following statements accurately describe the condition that can be used for conditional compilation in C++? A. The condition can depend on the value of environment variables. B. The condition can depend on the value of any const variables. C. The condition can depend on the value of program variables. D. The condition can use the sizeof() operator to make decision about compiler-dependent operations based on the size of standard data type. E. The condition must evaluate to either a 0 or 1 during preprocessing. I think the answer is E. Is this correct?

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  • Django query - join on the same table

    - by dana
    i have a mini blog app, and a 'timeline' . there i want to be displayed all the posts from all the friends of a user, plus the posts of that user himself. For that, i have to make some kind of a 'join' between the results of two queries (queries on the same table) , so that the final result will be the combination of the user - posesor of the account, and all his friends. My query looks like this: blog = New.objects.filter(created_by = following,created_by = request.user) By that ',' i wanted to make a 'join' -i found something like this on a doc- but this method is not correct- i'm getting an error. How else could be done this 'join' ? Thanks!

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  • How to get rid of `deprecated conversion from string constant to ‘char*’` warnings in GCC?

    - by Josh Matthews
    So I'm working on an exceedingly large codebase, and recently upgraded to gcc 4.3, which now triggers this warning: warning: deprecated conversion from string constant to ‘char*’ Obviously, the correct way to fix this is to find every declaration like char *s = "constant string"; or function call like void foo(char *s); foo("constant string"); and make them const char pointers. However, that would mean touching 564 files, minimum, which is not a task I wish to perform at this point in time. The problem right now is that I'm running with -werror, so I need some way to stifle these warnings. How can I do that?

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  • Strings - Filling In Leading Zeros Wtih A Zero

    - by headscratch
    I'm reading an array of hard-coded strings of numeric characters - all positions are filled with a character, even for the leading zeros. Thus, can confidently parse it using substring(start, end) to convert to numeric. Example: "0123 0456 0789" However, a string coming from a database does not fill in the leading zero with a 'zero character', it simply fetches the '123 456 789', which is correct for an arithmetic number but not for my needs and makes for parsing trouble. Before writing conditionals to check for leading zeros and adding them to the string if needed, is there a simple way of specifying they be filled with a character ? I'm not finding this in my Java book... I could have done the three conditionals in the time it took to post this but, this is more about 'education'... Thanks

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  • TypeError while using django Form in editing an Entry

    - by damon
    I have an Entry model which can belong to a Category.I am providing a CategoryChoicesForm sothat the user can choose from various Categorys (from a dropdown list)when an Entry is created or edited. I am having trouble with the CategoryChoicesForm while editing the Entry.It throws a TypeError.. If somebody can make out what is happening..please advise me how to correct this. int() argument must be a string or a number, not 'QueryDict' /home/Django-1.4/django/db/models/fields/__init__.py in get_prep_value, line 537 ...views.py in edit_entry category_choices_form = CategoryChoicesForm(form_data) ... ...forms.py in __init__ self.fields['categoryoption'].queryset = Category.objects.filter(creator=self.creator) Here is the form class CategoryChoicesForm(forms.Form): categoryoption = forms.ModelChoiceField( queryset = Category.objects.none(), required=False,label='Category') def __init__(self, categorycreator,*args, **kwargs): super(CategoryChoicesForm, self).__init__(*args, **kwargs) self.creator=categorycreator self.fields['categoryoption'].queryset = Category.objects.filter(creator=self.creator) The edit_entry view is as follows @login_required @transaction.commit_on_success def edit_entry(request,id,template_name,page_title): form_data = get_form_data(request) entry = get_object_or_404(Entry,pk=id,author=request.user) ... category_choices_form = CategoryChoicesForm(form_data) ...

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  • Rails 2.3.5: How to handle this type of validation

    - by randombits
    The use case is simple. I allow users to enter in an expiration field which needs to be between 1 and 15 into a form. The model takes that number and converts it into a datetime (such as adding 15 days from today) and stores it in the database. What's the correct way to actually validate that though? Do I validate against the datetime format that gets persisted in the database or the select box (1..15) that the user gets to pick through the form? I want to be able to validate that the user is putting in 1..15.. How is this done with ActiveRecord validation in Rails 2.3.5?

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  • SQL: Optimize insensive SELECTs on DateTime fields

    - by Fedyashev Nikita
    I have an application for scheduling certain events. And all these events must be reviewed after each scheduled time. So basically we have 3 tables: items(id, name) scheduled_items(id, item_id, execute_at - datetime) - item_id column has an index option. reviewed_items(id, item_id, created_at - datetime) - item_id column has an index option. So core function of the application is "give me any items(which are not yet reviewed) for the actual moment". How can I optimize this solution for speed(because it is very core business feature and not micro optimization)? I suppose that adding index to the datetime fields doesn't make any sense because the cardinality or uniqueness on that fields are very high and index won't give any(?) speed-up. Is it correct? What would you recommend? Should I try no-SQL? -- mysql -V 5.075 I use caching where it makes sence.

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