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• xcode convert iPhone to iPad

  - by user1625435

  help please. my code that change UIImageView is: - (void) viewDidLoad { background.image = [UIImage imageNamed:@"myImage.png"]; } It works good on iPhone and also on iPad but, how can I change "myImage.png" to "myImageHD.png" when I will run this app on my iPad???? I just need to show myImageHD if my app will run on iPad. IT CAN BE DONE WITH XIB FILE, BUT I NEED WITH CODE TO FIX IT. To detect if app run on iPad, and show myImageHD. Thanks.

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• Help with enums in Java

  - by devoured elysium

  Is it possible to have an enum change its value (from inside itself)? Maybe it's easier to understand what I mean with code: enum Rate { VeryBad(1), Bad(2), Average(3), Good(4), Excellent(5); private int rate; private Rate(int rate) { this.rate = rate; } public void increateRating() { //is it possible to make the enum variable increase? //this is, if right now this enum has as value Average, after calling this //method to have it change to Good? } } This is want I wanna achieve: Rate rate = Rate.Average; System.out.println(rate); //prints Average; rate.increaseRating(); System.out.println(rate); //prints Good Thanks

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• question about Tetration

  - by davit-datuashvili

  i have question how write program which calculates following procedures http://en.wikipedia.org/wiki/Tetration i have exponential program which returns x^n here is code public class Exp{ public static long exp(long x,long n){ long t=0; if (n==0){ t= 1; } else{ if (n %2==0){ t= exp(x,n/2)* exp(x,n/2); } else{ t= x*exp(x,n-1); } } return t; } public static void main(String[]args){ long x=5L; long n=4L; System.out.println(exp(x,n)); } } but how use it in Tetration program?please help

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• The JAR file not open(it open with the winRAR)?

  - by Tofiq

  Hi I'm working with the netbeans and I create a jar file, but it not opened with the java. When I try to open it opened with the winRAR program. This is the MainClass code: public class MainClass { public static void main(String arg[]){ Ludec cal=new Ludec(); cal.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE ); cal.setSize( 314, 380 ); cal.setLocation(600,150); cal.setVisible( true ); } } It run in the cmd by this command: java -jar "C:\Users\Tofiq\Documents\NetBeansProjects\JavaApplication1\dist\JavaApplication1.jar" but not run by clicking and its error:

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• Warning that users must handle

  - by hagaik

  I am looking for a way to set warning that the user will have to respond. In a sense I would like to use late exception mechanize that occur after the function already finished executing.and returned the wanted value. SomeObject Foo(int input) { SomeObject result; // do something. oh, we need to warn the user. return result; } void Main() { SomeObject object; object = Foo(1); // after copy consturctor is done I would like an exception to be thrown }

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• How to sort an array by (smallest, largest, second smallest, second, largest) etc?

  - by Binka

  Any ideas? I can sort an array. But not in this pattern? It needs to sort by the pattern I mentioned above. public void wackySort2(int[] nums) { int sign = 0; int temp = 0; int temp2 = 0; for (int i = 0; i < nums.length; i++) { for (int j = 0; j < nums.length - 1; j++) { if (nums[j] > nums[j + 1]) { temp = nums[j]; nums[j] = nums[j + 1]; nums[j + 1] = temp; //sign = 1; System.out.println("Something has been done"); } } } }

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• WndProc to detect device unplug and plug

  - by Kev Fixx

  How can I know a devices is plug or unplug in WPF? I am using the code below to detect device changes: private void OnSourceInitialized(object sender, EventArgs e) { IntPtr windowHandle = (new WindowInteropHelper(this)).Handle; HwndSource src = HwndSource.FromHwnd(windowHandle); src.AddHook(new HwndSourceHook(WndProc)); } private IntPtr WndProc(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam, ref bool handled) { // Handle WM_DEVICECHANGE... if (msg == 0x219) { InitHead(); } return IntPtr.Zero; } Thank you. EDITED: I did the below, still not working: if (msg == 0x0219) { switch (wParam.ToInt32()) { case 0x8000: { InitHead(); } break; } }

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• Java Thread wait() => blocked?

  - by Chris

  According to http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Thread.State.html calling wait() will result a thread to go in BLOCKED state. However this piece of code will result (after being called) in a Thread in WAITING State. class bThread extends Thread { public synchronized void run() { try { wait(); } catch (InterruptedException e) { e.printStackTrace(); } } } Have I got something wrong? Can anybody explain this behaviour to me? Any help would be appreciated!

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• Flex Builder I want to go from titleWindow to a panel.

  - by dejaninic

  Hi. I'm building an user login page and I want to go from titleWindow to Panel. I'm suing following function but it always takes me back to parentApplication. My question is how can I go to my panel and not to Application page. I know that I'm using parentApplication but what should I use instead??? Here is a part of my code: private function handleLogin(event:ResultEvent):void { Alert.show("You have succesfully logged in.", "Information", Alert.OK, null, null, null, Alert.OK); parentApplication.accountPage.mainService.getAccount(); PopUpManager.removePopUp(this); }

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• Problem getting textfield.text from other view controller

  - by wesleydyson

  Hey guys, I'm trying to add a textfield.text entry to an array. I want to pull the textfield.text from a text field in another view. Here's my code. - (void)addBookmark{ MultiViewViewController *mainView = [[MultiViewViewController alloc] init]; if (mainView.addressTextField.text.length>1) { NSString *addedString = [[NSString alloc] initWithFormat:@"%@", mainView.addressTextField.text]; [bookmarksArray addObject:addedString]; NSLog(@"addBookmark being called %@", mainView.addressTextField.text); } [bmTableView reloadData]; } The NSLog says the mainView.addressTextField.text is (NULL). What am I doing wrong?

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• How can i trim or remove " , " at the end of my query?

  - by Phsika

  i try to write a query but my query finished with "Control nvarchar(500), ". i want to finish "Control nvarchar(500)" How can remove ",", " "? void SqlTable(List listMyColumnNames, string TableName) { string Text = "Create table ENG_"+TableName+" (ENG_"+TableName+"_ID integer PRIMARY KEY identity(1,1), "; char[] MyChar = {',', ' ' }; for (int i = 0; i < listMyColumnNames.Count; ) { Text+=listMyColumnNames[i]+" nvarchar(500), "; if (i == listMyColumnNames.Count-1) Text.TrimEnd(MyChar); i++; } Text+=" )";

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• question about copy constructor

  - by lego69

  I have this class: class A { private: int player; public: A(int initPlayer = 0); A(const A&); A& operator=(const A&); ~A(); void foo() const; }; and I have function which contains this row: A *pa1 = new A(a2); can somebody please explain what exactly is going on, when I call A(a2) compiler calls copy constructor or constructor, thanks in advance

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• scope of variables java

  - by qxc

  Is a variable inside the main, a public variable? public static void main(String[] args) { ......... for(int i=0;i<threads.length;i++) try { threads[i].join(); } catch (InterruptedException e) { e.printStackTrace(); } long time=0; .... } i and time are they both public variables? Of course if my reasoning is correct, also any variable belonging to a public method should be considered public.. am i right? Thanks

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• Multiply without multiplication, division and bitwise operators, and no loops. Recursion

  - by lxx22

  public class MultiplyViaRecursion{ public static void main(String[] args){ System.out.println("8 * 9 == " + multiply(8, 9)); System.out.println("6 * 0 == " + multiply(6, 0)); System.out.println("0 * 6 == " + multiply(0, 6)); System.out.println("7 * -6 == " + multiply(7, -6)); } public static int multiply(int x, int y){ int result = 0; if(y > 0) return result = (x + multiply(x, (y-1))); if(y == 0) return result; if(y < 0) return result = -multiply(x, -y); return result; } } My question is very simple and basic, why after each "if" the "return" still cannot pass the compilation, error shows missing return.

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• Help with getting data from resized image.

  - by nick

  I'm using an ASP.NET file upload control and then resizing an image and storing the new image in a new Bitmap. Here is the code I have so far: protected void ResizeImage() { Bitmap originalBMP = new Bitmap(FileUpload1.FileContent); //Calculate new image dimensions int origWidth = originalBMP.Width; int origHeight = originalBMP.Height; int sngRatio = origWidth / origHeight; int newWidth = 100; int newHeight = newWidth / sngRatio; Bitmap newBMP = new Bitmap(originalBMP, newWidth, newHeight); } I'm uploading directly to Amazon S3 and I need to pass some data to its upload method. How do I get the following information from my new bitmap that I have been using with the fileupload?: FileUpload1.FileBytes FileUpload1.FileBytes.Length Do I need to save my new bitmap to a stream so I can get an array of bytes?

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• Extract inputs from a pointer to array of characters in C / C++

  - by user2066884

  I am writing a command line utility but I cannot find a way to store the commands and arguments. so far I have the following but I get a Segmentation fault: int main(void) { char *command; char *args[MAX_LINE/2 + 1]; int should_run = 1; do{ cout << "cmd> "; int counter = 0; while(cin >> command) { strcpy(args[counter],command); counter++; } cout << args[0] << "\n"; } }

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• ActionScript - One Button Limit (Exclusive Touch) For Mobile Devices?

  - by TheDarkIn1978

  two years ago, when i was developing an application for the iPhone, i used the following built-in system method on all of my buttons: [button setExclusiveTouch:YES]; essentially, if you had many buttons on screen, this method insured that the application wouldn't be permitted do crazy things when several button events firing at the same time. problematic: ButtonA and ButtonB are available. each button has a mouse up event which fire a specific reorganization/layout of the UI. if both button's events are fired at the same time, their events will likely conflict, causing a strange new layout, perhaps a runtime error. solution: application buttons cancel any current pending mouse up events when said button enters mouse down. private function mouseDownEventHandler(evt:MouseEvent):void { //if other buttons are currently in a mouse down state ready to fire //a mouse up event, cancel them all here. } of course it's simple to manually handle this if there are only a few buttons on stage, but managing buttons becomes more and more complicated / bug-prone if there are several / many buttons available. is there a convenience method available in AIR specifically for this functionality?

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• how to create 2 controllers with same actionresult 2 views but one implementation

  - by amalatsliit

  I got a controller in my mvc application like below. public class BaseController: Controller { protected void LogInfo() { logger.InfoFormat("[SessionID: {0}, RemoteIP: {1}]", Session.SessionID, Request.UserHostAddress); } } public class FirstController : BaseController { public ActionResult Index(string name) { LogInfo(); getQueryString(); if(IsValidRec()) { if(Errors())) { return View("Error"); } var viewname = getViewName(name); return view(viewname); } else return view("NotFound"); } } I need to create another controller(SecondController ) with same ActionResult method that FirstController has but without any implementation. Because I dont wont to repeat same code in 2 ActionResult methods. what is the best way to do that. I tried in following way but I m getting error when I initialize my protected method 'LogInfo()' public class SecondController : BaseController { public ActionResult Index(string name) { var firstcontroller = new FirstController(); return firstcontroller.Index(name); } }

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• Get a property value with only the object and the name of the property (but not the type)

  - by Vaccano

  Suppose I have a method that passes in the name of a property (as a string) and the object that the property is on (as object). How could I get the value of the property? Here is some code to make it a bit more concrete: protected override void Paint(Graphics g, Rectangle bounds, CurrencyManager source, int rowNum, Brush backBrush, Brush foreBrush, bool alignToRight) { // The next line is made up code var currentValue = source.Current.CoolMethodToTakePropertyNameAndReturnValue(MappingName); // Paint out the retrieved value g.DrawString(currentValue.ToString() , _gridFont, new SolidBrush(Color.Black), bounds.Left + 1, bounds.Top); } MappingName is the name of the property I want to get the value for. What I need is CoolMethodToTakePropertyNameAndReturnValue. Any ideas? I am running on the Compact Framework. I would also prefer to avoid reflection (but if that is my only recourse then so be it). Thanks for any help.

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• C# string to combobox issues

  - by Mike

  What i'm trying to do is read in a header row of a file to a combobox. Here is my code: private void button4_Click(object sender, EventArgs e) { string[] startdelim = File.ReadAllLines(textBox1.Text); int counter = 1; foreach (string delim in startdelim) { if (counter == 1) { string removedelim = delim.Replace("\"", ""); string[] lines = removedelim.IndexOf(","); foreach (string line in lines) { comboBox1.Items.Add(line); } } counter++; } for some reason it keeps telling me Error Cannot implicitly convert type 'int' to 'string[]' at string[] lines = removedelim.IndexOf(",");

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• Adding the scrollview created by photoscroller to a subview

  - by wierddemon

  I'm trying to modify Apple's PhotoScroller example to make the scrollview that is created into a subview instead of it being a view that takes up the entire screen. Any ideas on how this can be accomplished? - (void)loadView { // Step 1: make the outer paging scroll view CGRect pagingScrollViewFrame = [self frameForPagingScrollView]; pagingScrollView = [[UIScrollView alloc] initWithFrame:pagingScrollViewFrame]; pagingScrollView.pagingEnabled = YES; pagingScrollView.backgroundColor = [UIColor blackColor]; pagingScrollView.showsVerticalScrollIndicator = NO; pagingScrollView.showsHorizontalScrollIndicator = NO; pagingScrollView.contentSize = [self contentSizeForPagingScrollView]; pagingScrollView.delegate = self; // When I do this it fails [self.view addSubview:pagingScrollView]; // Step 2: prepare to tile content recycledPages = [[NSMutableSet alloc] init]; visiblePages = [[NSMutableSet alloc] init]; [self tilePages]; }

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• can't compile min_element in c++

  - by Vincenzo

  This is my code: #include <algorithm> #include <vector> #include <string> using namespace std; class A { struct CompareMe { bool operator() (const string*& s1, const string*& s2) const { return true; } }; void f() { CompareMe comp; vector<string*> v; min_element(v.begin(), v.end(), comp); } }; And this is the error: error: no match for call to ‘(A::CompareMe) (std::string*&, std::string*&)’ test.cpp:7: note: candidates are: bool A::CompareMe::operator()(const std::string*&, const std::string*&) const I feel that there is some syntax defect, but can't find out which one. Please, help!

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• List in C# - passing multiple entries as a single object

  - by Karthick

  Hi, I have a method (C#) public void MethodName(List<Order> Order, int ID) I need to pass this to a main page, in which i know to pass integer value to ID, am not able to pass multiple items in a single list. The List order should have two number entries, (ie. Order.number1 and Order.number2) How should i pass a single list as a parameter to this method containing multiple entries of number1 and 2, so that i can loop thro' and find it. Thanks.

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• Why does the compiler complain "while expected" when I try to add more code?

  - by user1893578

  Write a program with a word containing @ character as an input. If the word doesn't contain @, it should prompt the user for a word with @. Once a word with @ is read, it should output the word then terminate. This is what I have done so far: public class find { public static void main(String[] args) { System.out.println(" Please enter a word with @ "); Scanner scan = new Scanner(System.in); String bad = "@"; String word = scan.next(); do if (!word.contains(bad)) System.out.println(" Please try again "); else System.out.println(" " + word); while (!word.contains(bad)); } } I can get it to terminate after a word containing "@" is given as input, but if I try to add a Scanner to the line after "please try again", it says while expected.

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• How to remove icon programatically (Android)

  - by user1865039

  By remove the below intent-filter in AndroidManifest.xml, it can remove the icon after install. <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> But i have try the below when on Boot than remove the Icon, but the icon still remain after reboot. I have add the permission, and this reboot receiver is work. public class BootBroadcastReceiver extends BroadcastReceiver { @Override public void onReceive(Context context, Intent intent) { PackageManager p = context.getApplicationContext().getPackageManager(); ComponentName componentName = new ComponentName("com.example.remove_icon","com.example.remove_icon.LauncherActivity"); p.setComponentEnabledSetting(componentName,PackageManager.COMPONENT_ENABLED_STATE_DISABLED, PackageManager.DONT_KILL_APP); } }

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