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• java or php tip for small problem

  - by agazerboy

  Hi All, I am having a weird mind gogling problem. Sorry in advance, If I confuse you. I have following data 1 3 5 5 1 2 2 4 8 3 2 9 3 8 4 first column = source 1 second column = source 2 third column = result column First and second column will can create 3rd column and that 3rd column can be used in 1st or 2nd column to make a new 3rd column value. You can see in first row 5 was 3rd column and in 2nd row it was input to make 2 (3rd column) I am looking for a solutin that if it pass 3 it return me (1,4,5) rows and same for other digits. Solution tip can be either in java or php because I just want to get data from a old project to make it work ! Thanks !

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• How to convert a .NET WebService-Method-Result (Soap) into its original datatype?

  - by Marc

  Hello everyone. I have two "identical" webservices (Soap) on two different servers. Don't ask why :-) WebService-1 decides if it handels the request itself or if it passes the request to WebService-2. If so, the response of WebService-2 should directly be returned from WebService-1. The response datatype is complex and self defined. With simple datatypes like 'int or 'string' there would be no problem. The response of WebService-2 is a serialized object (I think it is called "stubs") and theredore it is not possibel to pass this object through as the response of WebService-1 because the type of the objects doesn't match. Is there a simple way to convert the serialised datatype into its original type without buiding a complex converter?

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• return first non repeating character in a string

  - by Amm Sokun

  I had to solve this question in which given a string, i had to return the first non repeating character present in the string. I solved it using hashtable and wrote a method which takes a constant reference to the string and returns the first non repeating character. However, when there is no non repeating character present in the string, i return -1 and in the main program i check as follows char c = firstNonRepeating( word ); if (static_cast<int> (c) == -1) cout<<"no non repeating character present\n"; else cout<<c<<endl; is that the correct way to return -1 when required character is not present?

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• ADT will not allow creation of Android Activity

  - by NewShelbyWoo

  I installed the ADT bundle from http://developer.android.com/sdk/index.html yesterday, and I was following a basic Hello World tutorial. I created a new Android Application Project with a Blank Activity named MainActivity. The resulting project has an empty src folder and empty res\layout folder. There is a R.java file in the gen folder but it has no reference to MainActivity. This is what the SDK manager says I have installed Android SDK Tools v 22.6 Android SDK Platform-tools v 19.0.1 Android SDK Build-tools v 19 SDK Platform v 3 ARM EABI v7a System Image v 2 Android Support Library v 19.0.1 Google USB Driver v 9 I also tried manually creating an activity by right clicking the src folder and going to Android Activity, but when I hit Finish on the creation wizard, nothing happens. Does anyone have any clues as to what's going on? Did I miss a key component to install or something?

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• Is it better to comment out unneeded code or delete it?

  - by Matt Connolly

  For web applications under maintenance, assuming you have source control, when you need to remove part of the UI and the associated code, do you delete the code and check in, or do you comment out the old code? Arguments in favor of deleting: cleaner code, can still see deleted code in source control history, no worrying about refactoring code that might be uncommented some day. Arguments in favor of commenting: sometimes you need to add the feature back in and the developer adding it back in may not know to check source control history, sometimes the code represents unique functionality that can be a handy reference, seeing it all in one place can help provide clues to deciphering the active code.

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• how to create local dynamic varables

  - by xielingyun

  this is my code, i want to use eval() to get the rule status and eval() nead local varables, there is many classes inherit class base, so i should to rewrite get_stat() in every class.i just want to avoid this, an idea is to create dynamic varables in get_stat(),eg. in class b it dynamic create var a and b how to create dynamic varables in function? or any other way to avoid this stupid idea i use python 3.2.3, locals() does not work class base(object): def check(self): stat = get_stat() def get_stat(self): pass class b(base): rule = 'a > 5 and b < 3' a = 0 b = 0 def update_data(self, a, b): self.a = a self.b = b def get_stat(self): a = self.a b = self.b return eval(rule) class b(base): rule = 'd > 5 and e < 3' d = 0 e = 0 def update_data(self, d, e): self.d = d self.e = e def get_stat(self): d = self.d e = self.e return eval(rule)

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• Enums and Annotations

  - by PeterMmm

  I want to use an Annotation in compile-safe form. To pass the value() to the Annotation i want to use the String representation of an enum. Is there a way to use @A with a value from enum E ? public class T { public enum E { a,b; } // C1: i want this, but it won't compile @A(E.a) void bar() { // C2: no chance, it won't compile @A(E.a.toString()) void bar2() { } // C3: this is ok @A("a"+"b") void bar3() { } // C4: is constant like C3, is'nt it ? @A(""+E.a) void bar4() { } } @interface A { String value(); }

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• SqlServer2008 + expensive union

  - by Tim Mahy

  Hi al, we have 5 tables over which we should query with user search input throughout a stored procedure. We do a union of the similar data inside a view. Because of this the view can not be materialized. We are not able to change these 5 tables drastically (like creating a 6th table that contains the similar data of the 5 tables and reference that new one from the 5 tables). The query is rather expensive / slow what are our other options? It's allowed to think outside the box. Unfortunately I cannot give more information like the table/view/SP definition because of customer confidentiality... greetings, Tim

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• MicroChip Sample Code setting Current to a CMPDAC, DAC threshold which expect an voltage

  - by jason hong

  Sorry, the MicroChip Forum is very slow,I prefer to use overflow site to ask questions. dsPIC33FJ06GS101/X02 and dsPIC33FJ16GSX02/X04 device Sample Code // configure comparator2 CMPCON2bits.CMPON = 1; // enable comparator CMPCON2bits.INSEL = 1; // select CMP2B input pin (RB0) CMPCON2bits.RANGE = 1; // select high range, max DAC value = Avdd/2 //CMPDACx: COMPARATOR DAC CONTROL REGISTER //CMREF<9:0>: Comparator Reference Voltage Select bits CMPDAC2 = CURR_HWLIM; // DAC threshold #define CURR_HWLIM 1023 // 1023 // 10.15 * 101A MicroChip Sample code setting CURR_HWLIM which 1023A to COMPDAC2 which expects voltage I think that's mistake.

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• sorting content of a text file in python

  - by rabidmachine9

  I have this small script that sorts the content of a text file # The built-in function `open` opens a file and returns a file object. # Read mode opens a file for reading only. try: f = open("tracks.txt", "r") try: # Read the entire contents of a file at once. # string = f.read() # OR read one line at a time. #line = f.readline() # OR read all the lines into a list. lines = f.readlines() lines.sort() f = open('tracks.txt', 'w') f.writelines(lines) # Write a sequence of strings to a file finally: f.close() except IOError: pass the only problem is that the text is displayed at the bottom of the text file everytime it's sortened... I assume it also sorts the blank lines...anybody knows why? thanks in advance

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• Nesting maximum amount of shapes on a surface

  - by Fuu

  In industry, there is often a problem where you need to calculate the most efficient use of material, be it fabric, wood, metal etc. So the starting point is X amount of shapes of given dimensions, made out of polygons and/or curved lines, and target is another polygon of given dimensions. I assume many of the current CAM suites implement this, but having no experience using them or of their internals, what kind of computational algorithm is used to find the most efficient use of space? Can someone point me to a book or other reference that discusses this topic?

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• Generic function to handle DataType Conversion

  - by Tommo1977

  I have the following function in C#, that I want to pass a MySQL DataReader value/object. If the value of the object passed is a DBNull I need to handle it and return a Null value of that data type e.g null int. Otherwise I want to convert the returned value like Convert.ToInt32(value) or similar. public static T ConvertFromDB<T>(object value) { return value == DBNull.Value ? default(T) : (T)value; } Can anyone offer any help on this ?

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• How to use soap in javascript

  - by fresher

  Hi guys, I am trying to use SOAP in javascript but i am not getting how to start it. Here is the code sample i write in PHP and it works fine. I want to write this code in Javascript. In following code i call one api from a www.example.com and for calling certain api we require to pass some parameters. $soapClient = new SoapClient("https://www.example.com/abc.aspx?WSDL"); // Prepare SoapHeader parameters $param_sh = array( ); $header = new SoapHeader('http://somesite.com/action/', 'user_credential', $param_sh); // Prepare Soap Client $soapClient->__setSoapHeaders(array($header)); // Setup the RemoteFunction parameters $param = array( "pwd" => "password", "id" => "name" ); // Call RemoteFunction () $contents = $soapClient->__call("name_of_api",array($param)); print_r($contents); Thanx in advance!!!

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• When does a MySQL Query actually execute in PHP?

  - by MJB

  This sounds like a really simple question, but I am new to PHP. If I have a statement like this: $r =& $db->query("insert into table (col1, col2) values (10, 20)"); Do I have to still execute it, or does it get executed when I reference it? I have another case where I have a select query, which seems logically to run only when I call fetchrow, but the code I am presented with (to fix) does not call execute or fetch.I would have expected it to, so I cannot tell if it is just that I don't get it, or that the missing execute statement is the problem. It also does not insert the record, but it does not throw an error I can find. Also, I am a little confused by the =& notation. I looked it up on google, and found a few mentions of it, but I am still not clear on it. Thanks.

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• Change cell color in Excel according to adjacent dropdown value

  - by Andrew Heath

  I understand how to make a dropdown list. I understand how to make conditional formatting change the color of a cell. What I do not understand is how to make conditional formatting change the color of a cell based solely on the state of another cell (not a comparison). A1 is a No / Yes dropdown list B1 is a criteria statement If the user satisfies the criteria statement in B1, they select Yes on the dropdown list in A1. For quick reference, if possible, I'd like B1 to change to a green background color on this event... and of course change back to no-fill if the dropdown is reset to No. Is this possible in Excel 2003 and/or 2007?

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• Why is generated XAML spitting out namespaces that are not asked for?

  - by Matt Holmes

  I have a very simple XAML form, that has one namespace definition. For some reason, when Visual Studio processes that XAML file in to it's component .g.cs, it's sticking a bunch of namespace definitions at the top that I have not asked for in the XAML, or the code behind, and they are namespaces that no longer exist in my project. Thus the project is failing to compile. Why is Visual Studio sticking arbitrary namespace 'using' statements in my generated XAML .g.cs files? It's caused my entire project to break. Not one time did this .xaml file ever reference the namespaces in question, so it's doubly annoying.

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• Can FileOutputStream() take a relative path as an argument

  - by Ankur

  I am creating a FileOutputStream object. It takes a file or String as an argument in its constructor. My question is, can I give it a relative URL as an argument for the location of a file, it doesn't seem to work, but I am trying to work out if this is possible at all (if not I will stop trying). If it is not possible, how can I (from a servlet) get the absolute path (on the filesystem, not the logical URL) to the current location in such a way that I can pass that to the constructor. Part of my problem is that my dev box is Windows but I will publish this to a Unix box, so the paths cannot be the same i.e. on Windows C:/.... and on unix /usr/...

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• Opening of files referred to in the aspx file in Visual Studio

  - by Harihara Vinayakaram

  Hi I am a new entrant in the .NET world . I am using Visual Studio 2008 . I have the following code <%@ MasterType VirtualPath="~/Themes/xyz/Common/splash.Master" %> <%@ Reference VirtualPath="~/Themes/abc/Common/master.Master" %> <%@ Import Namespace="MyServer.Components" %> <%@ Import Namespace="MyServer.Discussions.Components" %> <%@ Register TagPrefix="ATE" TagName="AskTheExpert" Src="~/Themes/xyz/Controls/AskTheExpert/AskTheExpert.ascx" %> I have the following questions : Is it possible to open the splash,Master , master.Master , AskTheExpert.ascx In the java world I can do a Ctrl+ click in IntelliJ to open the file . Is there a similar facility in VS Thanks Hari

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• Shallow Copy in Java

  - by Vilius

  Hello there! I already know, what a shallow copy is, but I'm not able to impliment it. Here's a short example. public class Shallow { String name; int number; public Shallow (String name, int number) { this.name = name; this.number = number; } } Test the implementation ... public class ShallowTest { public static void main (String[] args) { Shallow shallow = new Shallow("Shallow", 123); Shallow shallowClone = new Shallow(shallow); shallowClone.name = 'Peter'; shallowClone.number = 321; System.out.println(shallow.name + " - " + shallow.number); } } As I purpose, just the reference of the non primitive datatype String would be copied, so that by calling "shallowClone.name = 'Peter';" I would also change the name of "shallow". Am I right? But somehow, it just does not want to work ....

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• How to clear cache for previously installed InfoPath forms on a client computer?

  - by user313067

  Hi folks, We recently had a strange issue with an InfoPath 2007 form being opened from SharePoint 2007 and receiving the error message "the system cannot find the file specified". To be clear, this was not a form services enabled form. Anyway, after spending way too much time trying to figure out what was going on (nothing in the MOSS 2007 server log files), we determined that the user had previously installed an older version of the form (but with the same name) on their workstation using a no longer available msi file (meaning we could not uninstall it from the workstation). So I wanted to pass on a very simple solution for anyone who is unfortunate to run into this problem in the future (since I lost a great deal of hair over it): Fire up regedit, go to HKEY_LOCALMACHINE-Software-Microsoft-Office-InfoPath-SolutionsCatalog. Locate the key that has the previously installed form name, and delete it. This will cause InfoPath to stop trying to open the form locally (which is either old or doesn't exist) and force it to open your form from SharePoint. Hope this helps someone!

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• PHP: OOP and methods

  - by Pirkka

  Hello I`ve been wondering how to implement methods in a class. Could someone explain me what means if one does OOP in procedural style? Here is an example: class Fld extends Model { private $file; private $properties = array(); public function init($file) { $this->file = $file; $this->parseFile(); } private function parseFile() { // parses the file foreach($this->file as $line)...... .................. $this->properties = $result; } } I mean is it a good thing to have methods like these that do operations for the class properties like that. Or should I pass the class property as method parameter... I mean this would cause error if the file property wouldnt be declared.

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• Custom Memory Allocator for STL map

  - by Prasoon Tiwari

  This question is about construction of instances of custom allocator during insertion into a std::map. Here is a custom allocator for std::map<int,int> along with a small program that uses it: #include <stddef.h> #include <stdio.h> #include <map> #include <typeinfo> class MyPool { public: void * GetNext() { return malloc(24); } void Free(void *ptr) { free(ptr); } }; template<typename T> class MyPoolAlloc { public: static MyPool *pMyPool; typedef size_t size_type; typedef ptrdiff_t difference_type; typedef T* pointer; typedef const T* const_pointer; typedef T& reference; typedef const T& const_reference; typedef T value_type; template<typename X> struct rebind { typedef MyPoolAlloc<X> other; }; MyPoolAlloc() throw() { printf("-------Alloc--CONSTRUCTOR--------%08x %32s\n", this, typeid(T).name()); } MyPoolAlloc(const MyPoolAlloc&) throw() { printf(" Copy Constructor ---------------%08x %32s\n", this, typeid(T).name()); } template<typename X> MyPoolAlloc(const MyPoolAlloc<X>&) throw() { printf(" Construct T Alloc from X Alloc--%08x %32s %32s\n", this, typeid(T).name(), typeid(X).name()); } ~MyPoolAlloc() throw() { printf(" Destructor ---------------------%08x %32s\n", this, typeid(T).name()); }; pointer address(reference __x) const { return &__x; } const_pointer address(const_reference __x) const { return &__x; } pointer allocate(size_type __n, const void * hint = 0) { if (__n != 1) perror("MyPoolAlloc::allocate: __n is not 1.\n"); if (NULL == pMyPool) { pMyPool = new MyPool(); printf("======>Creating a new pool object.\n"); } return reinterpret_cast<T*>(pMyPool->GetNext()); } //__p is not permitted to be a null pointer void deallocate(pointer __p, size_type __n) { pMyPool->Free(reinterpret_cast<void *>(__p)); } size_type max_size() const throw() { return size_t(-1) / sizeof(T); } void construct(pointer __p, const T& __val) { printf("+++++++ %08x %s.\n", __p, typeid(T).name()); ::new(__p) T(__val); } void destroy(pointer __p) { printf("-+-+-+- %08x.\n", __p); __p->~T(); } }; template<typename T> inline bool operator==(const MyPoolAlloc<T>&, const MyPoolAlloc<T>&) { return true; } template<typename T> inline bool operator!=(const MyPoolAlloc<T>&, const MyPoolAlloc<T>&) { return false; } template<typename T> MyPool* MyPoolAlloc<T>::pMyPool = NULL; int main(int argc, char *argv[]) { std::map<int, int, std::less<int>, MyPoolAlloc<std::pair<const int,int> > > m; //random insertions in the map m.insert(std::pair<int,int>(1,2)); m[5] = 7; m[8] = 11; printf("======>End of map insertions.\n"); return 0; } Here is the output of this program: -------Alloc--CONSTRUCTOR--------bffcdaa6 St4pairIKiiE Construct T Alloc from X Alloc--bffcda77 St13_Rb_tree_nodeISt4pairIKiiEE St4pairIKiiE Copy Constructor ---------------bffcdad8 St13_Rb_tree_nodeISt4pairIKiiEE Destructor ---------------------bffcda77 St13_Rb_tree_nodeISt4pairIKiiEE Destructor ---------------------bffcdaa6 St4pairIKiiE ======Creating a new pool object. Construct T Alloc from X Alloc--bffcd9df St4pairIKiiE St13_Rb_tree_nodeISt4pairIKiiEE +++++++ 0985d028 St4pairIKiiE. Destructor ---------------------bffcd9df St4pairIKiiE Construct T Alloc from X Alloc--bffcd95f St4pairIKiiE St13_Rb_tree_nodeISt4pairIKiiEE +++++++ 0985d048 St4pairIKiiE. Destructor ---------------------bffcd95f St4pairIKiiE Construct T Alloc from X Alloc--bffcd95f St4pairIKiiE St13_Rb_tree_nodeISt4pairIKiiEE +++++++ 0985d068 St4pairIKiiE. Destructor ---------------------bffcd95f St4pairIKiiE ======End of map insertions. Construct T Alloc from X Alloc--bffcda23 St4pairIKiiE St13_Rb_tree_nodeISt4pairIKiiEE -+-+-+- 0985d068. Destructor ---------------------bffcda23 St4pairIKiiE Construct T Alloc from X Alloc--bffcda43 St4pairIKiiE St13_Rb_tree_nodeISt4pairIKiiEE -+-+-+- 0985d048. Destructor ---------------------bffcda43 St4pairIKiiE Construct T Alloc from X Alloc--bffcda43 St4pairIKiiE St13_Rb_tree_nodeISt4pairIKiiEE -+-+-+- 0985d028. Destructor ---------------------bffcda43 St4pairIKiiE Destructor ---------------------bffcdad8 St13_Rb_tree_nodeISt4pairIKiiEE Last two columns of the output show that an allocator for std::pair<const int, int> is constructed everytime there is a insertion into the map. Why is this necessary? Is there a way to suppress this? Thanks! Edit: This code tested on x86 machine with g++ version 4.1.2. If you wish to run it on a 64-bit machine, you'll have to change at least the line return malloc(24). Changing to return malloc(48) should work.

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• Authentication Error in C# Send Mail App

  - by doc

  I'm developing a simple send mail app in C#, using my CMail Server: MailMessage mail = new MailMessage("[email protected]", "[email protected]"); mail.Subject = "Sub"; mail.Body = "Hi!"; SmtpClient smtp = new SmtpClient("MyServer"); System.Net.NetworkCredential cred = new System.Net.NetworkCredential("user", "pass"); smtp.UseDefaultCredentials = false; smtp.Credentials = cred; smtp.Send(mail); Obviously i ommited my account information, so, this code throws me an Authentication Exception for some reason. I first thought that the code was wrong, so i change the info to my gmail account and everything goes fine, with the only SMTP server that i having trouble is with the CMail. Is there a problem with .NET and CMail's SMTP ? Thanks for the help and comments!

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• Flex 3.0 Drag and Drop

  - by C-Man

  Hi all! I have encountered a problem in a Flex application. I have implemented drag and drop support from a List to a Canvas, and I DragManagers doDrag() - with.a proxy-image. In my custom DragDrop event handler, i place a new item on the Canvas. I use the event.localX/localY to position the new item. It is working ok, but the problem is that I want the "new" image to appear exactly where the proxy-image is when i release the mouse button (x/y -wise). Can I somehow get the proxys X,Y location. I thought that DragManager would have a reference to it but I can´t find it. Thanks /C

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• Android: Send arbitrary objects within Activities?

  - by Sebastian

  I have read some question here but I didn't find a solution. I have read about Parcelable, Intents, and sharing specific data within Activities from the android dev docs (both dev guide and reference). Here's the scenario: I have one ListActivity that fills in an object parsing an xml file, it shows a list of values, and when clicked I want to return the object that represents the item clicked to the activity that has called it, for then, call another activity with this object. I read on how to implement Parcelable but seems not being the way. Implementing Parcelable receives a Parcel for the constructor and then reads the values from it (or at least that was what I understood). This makes no sense for me and I can't see how to implement basing on that issue. I build the object parsing the xml file, not having a Parcel. I appreciate some clarifications on this, regards.

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