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  • How do i get the screen to pause?

    - by Dakota
    So im learning c++ and i was given this example and i wanted to run it. But i cannot get it to stay up, unless i change it. How do i get Microsoft visual 2010 to keep up the screen when it gets to the end of the program after I release it? include using namespace std; int area(int length, int width); /* function declaration */ /* MAIN PROGRAM: */ int main() { int this_length, this_width; cout << "Enter the length: "; /* <--- line 9 */ cin >> this_length; cout << "Enter the width: "; cin >> this_width; cout << "\n"; /* <--- line 13 */ cout << "The area of a " << this_length << "x" << this_width; cout << " rectangle is " << area(this_length, this_width); return 0; } /* END OF MAIN PROGRAM */ /* FUNCTION TO CALCULATE AREA: */ int area(int length, int width) /* start of function definition */ { int number; number = length * width; return number; } /* end of function definition */ /* END OF FUNCTION */

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  • Why is my program freezing when I use a method? (Java)

    - by user2915567
    When I use a boolean method in the Main body, my program freezes and stops working. I've tried putting the method at different places but the exact same thing happens - it freezes. The method is really simple and well-written, I'm not sure what's causing the problem. P.S. The method is on the bottom of the code. Thanks for your help! Edit: That was a dumb question now that I look at it. Thanks again everyone! public static void main(String[] args) { Scanner keyboard = new Scanner(System.in); int stringNumber = 0; String[] stringArray = new String[10]; for (int i = 0; i <= stringArray.length; i++) { boolean itemExists = false; boolean AddItem = AddItem(); if (AddItem == true) { out.println("\nEnter a string"); String input = keyboard.next(); if (i > 0) { for (int j = 0; j < stringArray.length; j++) { if (input.equalsIgnoreCase(stringArray[j])) { itemExists = true; out.println("Item \"" + input + "\" already exists."); break; } } } if (itemExists == false) { stringArray[stringNumber] = input; out.println("\"" + stringArray[stringNumber] + "\"" + " has been stored.\n"); } else { out.println("Try again."); i--; } PrintArray(stringArray); stringNumber++; } } } // This is the method I was talking about // public static boolean AddItem() { Scanner keyboard = new Scanner(System.in); int input = keyboard.nextInt(); out.println("If you want to add an item, Press 1"); if (input == 1) { return true; } else { out.println("Invalid input."); return false; } }

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  • Whats wrong with my SQL query?

    - by William
    I'm trying to set up a query that shows the first post of each thread and is ordered by the date of the last post in each thread. I got the first part down with this query: SELECT * FROM ( SELECT Min( ID ) AS MinID FROM test_posts GROUP BY Thread )tmin JOIN test_posts ON test_posts.ID = tmin.MinID Now I need to figure out how to call the last post of each thread into a table, than use that table to order the first tables results. So far I got this, but it doesn't work. SELECT * FROM ( SELECT Min( ID ) AS MinID FROM test_posts GROUP BY Thread )tmin JOIN test_posts ON test_posts.ID = tmin.MinID ORDER BY (SELECT MAX( ID ) AS MaxID, Thread, MAX( Date ) FROM test_posts GROUP BY Thread )tmax tmax.Date

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  • An analog of String.Join(string, string[]) for IEnumerable<T>

    - by abatishchev
    class String contains very useful method - String.Join(string, string[]). It creates a string from an array, separating each element of array with a symbol given. But general - it doesn't add a separator after the last element! I uses it for ASP.NET coding for separating with "<br />" or Environment.NewLine. So I want to add an empty row after each row in asp:Table. What method of IEnumerable<TableRow> can I use for the same functionality?

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  • Find a base case for a recursive void method

    - by Evan S
    I am doing homework. I would like to build a base case for a recursion where ordering given numbers (list2) in ascending order. Purpose of writing this codes is that when all numbers are in ascending order then should stop calling a method called ascending(list2, list1); and all values in list2 should be shipped to list1. For instance, list2 = 6,5,4,3,2,1 then list2 becomes empty and list1 should be 1,2,3,4,5,6. I am trying to compare result with previous one and if matches then stop. But I can't find the base case to stop it. In addition, Both ascending() and fixedPoint() are void method. Anybody has idea? lol Took me 3 days... When I run my code then 6,5,4,3,2,1 5,6,4,3,2,1 4,5,6,3,2,1 3,4,5,6,2,1 2,3,4,5,6,1 1,2,3,4,5,6 1,2,3,4,5,6 1,2,3,4,5,6 1,2,3,4,5,6 1,2,3,4,5,6 infinite............. public class Flipper { public static void main(String[] args) { Flipper aFlipper = new Flipper(); List<Integer> content = Arrays.asList(6,5,4,3,2,1); ArrayList<Integer> l1 = new ArrayList<Integer>(content); ArrayList<Integer> l2 = new ArrayList<Integer>(); // empty list aFlipper.fixedPoint(l2,l1); System.out.println("fix l1 is "+l1); System.out.println("fix l2 is "+l2); } public void fixedPoint(ArrayList<Integer> list1, ArrayList<Integer> list2) { // data is in list2 ArrayList<Integer> temp1 = new ArrayList<Integer>(); // empty list if (temp1.equals(list2)) { System.out.println("found!!!"); } else { ascending(list2, list1); // data, null temp1 = list1; // store processed value System.out.println("st list1 is "+list1); System.out.println("st list2 is "+list2); } fixedPoint(list2, list1); // null, processed data }

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  • Generating a Grid of NSTextField Objects From NSDictionary Items

    - by SteveStifler
    I'm trying to create an vocabulary study application using Obj-C and the Cocoa frameworks. I have about two week's experience in both areas and have reached an edge of my current knowledge. Here's where I'm stuck. When I press a checkbox, a corresponding plist is loaded into memory as an NSDictionary. I want to generate a "Label: Textfield" pair for each key:value pair, where the Label is the key. When the text typed into the Textfield matches the key's value, I want the Label's text to turn green. So how would I generate this grid, and once generated, how would I make the text green upon correct input? Thanks!

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  • Multiple generic parameters on a html helper extension method

    - by WestDiscGolf
    What I'm trying to do is create an extension method for the HtmlHelper to create a specific output and associated details like TextBoxFor<. What I want to do is specify the property from the model class as per TextBoxFor<, then an associated controller action and other parameters. So far the signature of the method looks like: public static MvcHtmlString Create<TModel, TProperty, TController>(this HtmlHelper<TModel> htmlHelper, Expression<Func<TModel, TProperty>> expression, Expression<Action<TController>> action, object htmlAttributes) where TController : Controller where TModel : class The issue occurs when I go to call it. In my view if I call it as per the TextBoxFor without specifying the Model type I am able to specify the lambda expression to set the property which it's for, but when I go to specify the action I am unable to. However, when I specify the controller type Html.Create<HomeController>( ... ) I am unable to specify the model property that the control is to be created for. I want to be able to call it like <%= Html.Create(x => x.Title, controller => controller.action, null) %> I've been hitting my head for a few hours now on this issue over the past day, can anyone point me in the right direction?

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  • Stack overflow while working with CFBuilder plugin

    - by lynxoid
    In the past 30 minutes of working in CFBuilder (I have it as an Eclipse Plug in), I got this error 4 times: A stack overflow has occurred. You are recommended to exit the workbench. Subsequent errors may happen and may terminate the workbench without warning. See the .log file for more details. Do you want to exit workbench?. together with: Unhandled event loop exception java.lang.StackOverflowError The log file had this: !ENTRY org.eclipse.ui 4 0 2010-05-11 09:41:51.951 !MESSAGE Unhandled event loop exception !STACK 0 java.lang.StackOverflowError at java.util.Arrays.mergeSort(Unknown Source) at java.util.Arrays.mergeSort(Unknown Source) at java.util.Arrays.mergeSort(Unknown Source) at java.util.Arrays.mergeSort(Unknown Source) at java.util.Arrays.mergeSort(Unknown Source) at java.util.Arrays.sort(Unknown Source) at com.adobe.ide.cfml.parser.generated.CFMLParserBase.getVariableInfo(CFMLParserBase.java:1613) at com.adobe.ide.cfml.parser.generated.CFMLParserBase.getVariableInfo(CFMLParserBase.java:1603) at com.adobe.ide.editor.model.CFMLDOMUtils.getVariable(CFMLDOMUtils.java:2375) at com.adobe.ide.editor.model.CFMLDOMUtils.getComponentNameFromNode(CFMLDOMUtils.java:2484) at com.adobe.ide.editor.model.CFMLDOMUtils.getComponentNameFromFunctionCall(CFMLDOMUtils.java:2168) at com.adobe.ide.editor.model.CFMLDOMUtils.getComponentNameFromNode(CFMLDOMUtils.java:2495) at com.adobe.ide.editor.model.CFMLDOMUtils.getComponentNameFromFunctionCall(CFMLDOMUtils.java:2168) at com.adobe.ide.editor.model.CFMLDOMUtils.getComponentNameFromNode(CFMLDOMUtils.java:2495) at com.adobe.ide.editor.model.CFMLDOMUtils.getComponentNameFromFunctionCall(CFMLDOMUtils.java:2168) (and so on - repeat n times) It happens whenever I copy/paste something. Does anyone know what is going on?

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  • XCode 4.3 : XIB files and localisation

    - by Fabrice MAUPIN
    I have a problem with XIB Files and localizations (Xcode 4.3, Mac Os X 10.7.4) My application supports french and english localizations. For my test, i decided to change the languages and regions from "french" to "english" in system preferences. When i launch my application, it displays always old XIB files (french) et not the XIB files "attached" to my new localization ! ** I followed all the recommendations which i was able to find : i cleared all caches, clean up the project, ... and so on ! The problem is always here and persists. Can be that XCode4 has the other files to delete somewhere else ? is it possible to use another means to test my new localization ? If you are a idea, ... Thanks in advance. FM.

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  • Problem using a method in Ruby

    - by Rafal
    I'm very new to Ruby (and OOP as well) and I don't know why the following thing doesn't work in Ruby I extended the String class with a new method. Easy enough. Now I want to extend the Fixnum class. A String object appears somewhere in the class, but I can't use the method that I defined earlier. Why? Is this normal?

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  • incremental way of counting quantiles for large set of data

    - by Gacek
    I need to count the quantiles for a large set of data. Let's assume we can get the data only through some portions (i.e. one row of a large matrix). To count the Q3 quantile one need to get all the portions of the data and store it somewhere, then sort it and count the quantile: List<double> allData = new List<double>(); foreach(var row in matrix) // this is only example. In fact the portions of data are not rows of some matrix { allData.AddRange(row); } allData.Sort(); double p = 0.75*allData.Count; int idQ3 = (int)Math.Ceiling(p) - 1; double Q3 = allData[idQ3]; Now, I would like to find a way of counting this without storing the data in some separate variable. The best solution would be to count some parameters od mid-results for first row and then adjust it step by step for next rows. Note: These datasets are really big (ca 5000 elements in each row) The Q3 can be estimated, it doesn't have to be an exact value. I call the portions of data "rows", but they can have different leghts! Usually it varies not so much (+/- few hundred samples) but it varies! This question is similar to this one: http://stackoverflow.com/questions/1058813/on-line-iterator-algorithms-for-estimating-statistical-median-mode-skewness But I need to count quantiles. ALso there are few articles in this topic, i.e.: http://web.cs.wpi.edu/~hofri/medsel.pdf http://portal.acm.org/citation.cfm?id=347195&dl But before I would try to implement these, I wanted to ask you if there are maybe any other, qucker ways of counting the 0.25/0.75 quantiles?

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  • Will NKDbgPrintfW be compiled to nop in release build?

    - by Johann Gerell
    I know about and have used the macros DEBUGMSG, RETAILMSG, ERRORMSG, that all take a condition parameter. For general formatted debug output, though, I want to use ::NKDbgPrintfW directly and wonder if someone knows if it compiles to a nop in optimised release builds or if my own macro wrapper around it with #ifdef DEBUG is still needed?

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  • Should app using VCL migrate?

    - by Fdr
    Is VCL dead, or does it have a future as a GUI library? As CLX ended, is there any chance for cross-platform support in future releases? I've had to do some work with legacy app that uses Borland's VCL(BCB6). Now that new features have to be implemented, it's necessary to revalue alternatives. Whether to stick with VCL or migrate to some other library/framework. I've never read much what's happening in the field Embarcadero(Borland) tools. At least there seems to be only few VCL tagged questions here in SO and no much luck with google either.

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  • Python: Hack to call a method on an object that isn't of its class

    - by cool-RR
    Assume you define a class, which has a method which does some complicated processing: class A(object): def my_method(self): # Some complicated processing is done here return self And now you want to use that method on some object from another class entirely. Like, you want to do A.my_method(7). This is what you'd get: TypeError: unbound method my_method() must be called with A instance as first argument (got int instance instead). Now, is there any possibility to hack things so you could call that method on 7? I'd want to avoid moving the function or rewriting it. (Note that the method's logic does depend on self.) One note: I know that some people will want to say, "You're doing it wrong! You're abusing Python! You shouldn't do it!" So yes, I know, this is a terrible terrible thing I want to do. I'm asking if someone knows how to do it, not how to preach to me that I shouldn't do it.

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  • How to prevent form from being activated when the users clicks on it?

    - by riot_starter
    I have a main form and non-modal autocomplete form. How can I prevent the autocomplete form from being activated by the user, when the user clicks on the list in the autocomplete form? So, basically I want the autocomplete form the receive the mouse click message when the users clicks, but to never become active, because it causes problems with a third-party component in the main form over which I have no control.

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  • Call function in query in Entity framework 3.5

    - by Ashwani K
    Hello All: I am trying to run following query in entity framework 3.5 var test = from e in customers where IsValid(e) select e; Here IsValid function takes current customer and validate against some conditions and returns false or true. But when I am trying to run the query it is giving error "LINQ Method cannot be translated into a store expression." Can any body tell me any other approach? One approach I can think of is to write all validation conditions here, but that will make the code difficult to read. Thanks Ashwani

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  • KaZip for C++Builder2009/Delphi

    - by Katsumi
    Hi. I have download and install KaZip2.0 on C++Builder2009 (with little minor changes = only set type String to AnsiString). I have write: KAZip1->FileName = "test.zip"; KAZip1->CreateZip("test.zip"); KAZip1->Active = true; KAZip1->Entries->AddFile("pack\\text.txt","xxx.txt"); KAZip1->Active = false; KAZip1->Close(); now he create a test.zip with included xxx.txt (59byte original, 21byte packed). I open the archiv in WinRAR successful and want open the xxx.txt, but WinRAR says file is corrupt. :( What is wrong? Can somebody help me? Extract not working, because file is corrupt? KAZip1->FileName = "test.zip"; KAZip1->Active = true; KAZip1->Entries->ExtractToFile("xxx.txt","zzz.txt"); KAZip1->Active = false; KAZip1->Close();

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  • Preview rounded image in iphone

    - by camilo
    Hi, can anyone tell me how can I create an image preview inside a customized cell with the aspect of the ones loaded in the mms'. I've been trying to do it by changing values in IB and I haven't been able to. Thanks a lot!

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  • Query in sql involving joins of two table

    - by Satish
    I have two tables reports and holidays. reports: (username varchar(30),activity varchar(30),hours int(3),report_date date) holidays: (holiday_name varchar(30), holiday_date date) select * from reports gives +----------+-----------+---------+------------+ | username | activity | hours | date | +----------+-----------+---------+------------+ | prasoon | testing | 3 | 2009-01-01 | | prasoon | coding | 4 | 2009-01-03 | | prasoon | coding | 4 | 2009-01-06 | | prasoon | coding | 4 | 2009-01-10 | +----------+-----------+---------+------------+ select * from holidays gives +--------------+---------------+ | holiday_name | holiday_date | +--------------+---------------+ | Diwali | 2009-01-02 | | Holi | 2009-01-05 | +--------------+---------------+ Is there any way by which I can output the following? +-------------+-----------+---------+-------------------+ | date | activity | hours | holiday_name | +-------------+-----------+---------+-------------------+ | 2009-01-01 | testing | 3 | | | 2009-01-02 | | | Diwali | | 2009-01-03 | coding | 4 | | | 2009-01-04 | Absent | Absent | | | 2009-01-05 | | | Holi | | 2009-01-06 | coding | 4 | | | 2009-01-07 | Absent | Absent | | | 2009-01-08 | Absent | Absent | | | 2009-01-09 | Absent | Absent | | | 2009-01-10 | coding | 4 | | +-------------+-----------+---------+-------------------+ In other words I want to fill the activity and hours columns with "Absent" on the dates which are neither in table reports nor in table holidays. How can I write a specific query for it. The query should give the output between two specific dates.

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  • Why MyModel.all works in Rails ?

    - by AntonAL
    Hi, i don't understand this little thing: Suppose, we have "Person" model class Person < ActiveRecord::Base end Why Person.all works ? Person.all.each { |p| do_something } This syntax tells us, that we have Person class-object instanciated somewhere ? Or is it some convention over configuration case ?

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  • Making a view scrollable when keyboard active

    - by Dan Ray
    I have a view with half a dozen text fields and labels, and a button. I want it to be that when the keyboard pops up, the view becomes scrollable, so you can scroll the view up and see the bottom half of the fields without having to dismiss the keyboard to get to them. Just putting it inside a UIScrollView doesn't seem to do it.

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  • Objective-C method not being called

    - by Matt S.
    It's either because of the fact I'm tired or because I'm doing it wrong, but for some reason I can't get it to call a method. Here's what I'm trying to call: -(void)newHighScore:(int)d Which right now just does an NSLog saying "yea I'm working!" I'm calling it like this: [highscore newHighScore:score]; highscore is what I called the HighScore class in the .h, and score is an int with the score.

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  • which way is correct to retrive data from oracle??

    - by rima
    before answer me plz thinking about the futures of these kind of program and answer me plz. I wanna get some data from oracle server like: 1-get all the function,package,procedure and etc for showing them or drop them & etc... 2-compile my *.sql files,get the result if they have problem & etc... becuz I was beginner in oracle first of all I for solve the second problem I try to connect to sqlPlus by RUN sqlplus and trace the output(I mean,I change the output stream of shell and trace what happend and handle the assigned message to customer. NOW THIS PART SUCCEED. just a little bit I have problem with get all result because the output is asynchronous.any way... [in this case I log in to oracle Server by send argument to the sqlplus by make a process in c#] after that I try to get all function,package or procedure name,but I have problem in speed!so I try to use oracle.DataAccess.dll to connect the database. now I m so confusing about: which way is correct way to build a program that work like Oracle Developer! I do not have any experience for like these program how work. If Your answer is I must use the second way follow this part plz: I search a little bit the Golden,PLedit (Benthic software),I have little bit problem how I must create the connection string?because I thinking about how I can find the host name or port number that oracle work on them?? am I need read the TNSNames.Ora file? IF your answer is I must use the first way follow this part plz: do u have any Idea for how I parse the output?because for example the result of a table is so confusing...[i can handle & program it but I really need someone experience,because the important things to me learn how such software work so nice and with quick response?] All of the has different style in output... If you are not sure Can u help me which book can help me in this way i become expert? becuz for example all the C# write just about how u can connect to DB and the DB books write how u can use this DB program,I looking for a book that give me some Idea how develop an interface for do transaction between these two.not simple send and receive data,for example how write a compiler for them. the language of book is not different for me i know C#,java,VB,sql,Oracle Thanks.

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