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• what would be the output?

  - by Abhishek Jain

  Please explain me below situation What would be the output? interface A{} class B implements A{} class C extends B{} Class D extends C{} class E extends D{ public static void main(String args[]){ C c = new C(); B b = c; A a = (E)c; A a = (B)c; C c = (C)(B)c; } }

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• Why does this programe require MSVCR80.dll?

  - by Runner

  #include <gtk/gtk.h> int main( int argc, char *argv[] ) { GtkWidget *window; gtk_init (&argc, &argv); window = gtk_window_new (GTK_WINDOW_TOPLEVEL); gtk_widget_show (window); gtk_main (); return 0; } I tried putting various versions of MSVCR80.dll under the same directory as the generated executable(via cmake),but none matched.

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• LaTeX vs DocBook

  - by yfel

  I have only little knowledge about LaTeX, basic formatting, basic math fomulae etc.. I found that LaTeX is hard to configure to my own flavor. Recently, I've heard about Docbook, which is also a typesetting mechanism, but much easier since it uses XML. So, if my main job using LaTeX/Docbook is writing a simple document (not a class book) with some mathematics, and I want easy configuration, and a highly constomizable application, which one is better, and is there any good book on Docbook?

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• Java: Converting UTF 8 to String

  - by kujawk

  When I run the following program: public static void main(String args[]) throws Exception { byte str[] = {(byte)0xEC, (byte)0x96, (byte)0xB4}; String s = new String(str, "UTF-8"); } on Linux and inspect the value of s in jdb, I correctly get: s = "ì–´" on Windows, I incorrectly get: s = "?" My byte sequence is a valid UTF-8 character in Korean, why would it be producing two very different results?

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• How and where do you define your own Exception hierarchy in Java?

  - by EugeneP

  How and where do you define your own Exception hierarchy in Java? My main question concerns package location where they your Exception classes must be defined. Do we create a special package ourexceptions and put all classes inside it?

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• How to create a CSS shade effect with a faded sidebar

  - by moorcroft

  Hi I'm not too sure how to create the attached image effect where the right hand side is my main content and it shades onto my left sidebar which has a gradient effect downwards.

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• How to make sure input is a double in the C programming language

  - by Chris_45

  How do I make sure I've got a double and not something else? int main() { int flagOk = 0; double number; while(!flagOk) { printf("Put in a double"); scanf("%lf", &number); if(number == "%lf"); //this want make sure flagOk = 1; } }

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• Problem creating a webpage in OOP pattern?

  - by Starx

  I want to develop a website in OOP pattern, but I am stuck in a point whether I need to inherit from multiple classes. For example I have a main class "index" this class has several methods which need to inherited from other classes and I have created seperate classes for it like class "banner", class "content", class "footer" Not only this but class "content" has several methods to be inherited from other classes like class "gallery", class "news", etc I found out that multiple inheritance is not allowed, and using interface I cannot write codes in its methods, so how can i achieve a solution for this problem.

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• gcc -Wshadow is too strict?

  - by idimba

  In the following example: class A { int len(); void setLen(int len) { len_ = len; } // warning at this line int len_; }; gcc with -Wshadow issue a warning: main.cpp:4: warning: declaration of `len' shadows a member of `this' function len and integer len are of different type. Why the warning?

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• How to mix multiple javascript files into one?

  - by metal-gear-solid

  To reduce http request i want to mix multiple jquery plugin's javascript filesa and main jquery file into one. What things should be considered? Do we just need to place code from all files into new file one bye one or need to do something more. ?

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• Extract a portion of a Qt .ui file into its own .ui file

  - by Grant Limberg

  We have a designer creating a user interface for an application. The main window has several QStackedWidgets used for in place panel switching. What I'd like to be able to do is extract each individual panel that makes up each page of the QStackedWidget into it its own .ui file. Is there an easy way to accomplish this from within Qt Designer, or are there any other tools to help accomplish this task short of redesigning all of the panels in their own .ui files?

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• How to delete pointer in C++? [closed]

  - by Jon Skeet

  i has codez below: #include <iostream> using namespace std; int main() { int * jonskeet = new int(0); // now i deletes pointer data delete jonskeet; // now how i delete pointer? return 555555; } how do i delete teh pointer now?? plz help me!

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• What is the best 3-D technology for the "Online Room Planner" site?

  - by Omega

  The main user-case is: Create the 2D floor plan See the 3D view of the room in colors and in dynamic lighting (switching on and off the lamps) Select the furniture from the large library of predefined samples. Change the color and texture of the furniture samples. Create the photos of the 3D room view from different points. Also user can move and turn the camera in the room and discover the view.

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• Polymorphism and c#

  - by saurabh

  Here one more basic question asked in MS interview recently Class A { public virtual void Method1(){} public void Method2() { Method1(); } } class B:A { public override void Method1() { } } Class main { A obk = new B(); obk.Method2(); } now tell me which function gets called ? sorry for the typos.

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• How to use 5 byte value in macro

  - by shaktisinha

  Hi All, I've just started reading C and have a question about macro. How can I use a 5 byte value with a macro For eg. #define MAX 0xdeadbeaf12 int main(){ printf(" 0x %2x \n", MAX); } This code prints adbeaf12 but not deadbeaf12. Please help. Thanks

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• Remote Desktop in Linux like Team Viewer

  - by crissangel

  For Remote Desktop Sessions in Linux, I want to know if there something available equivalent for what Team Viewer does for windows? The main advantage I find of Team viewer is that it can bypass firewalls, needs no NAT configurations or port forwarding rules to be setup in the router.

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• Pass a dynamic structure by reference? [C]

  - by Blackbinary

  How do i pass a structure like : struct data { int x; }; /*MAIN*/ struct data *root; by reference to a function? Thanks for any help!

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• Is it possible to push to 2 or more remote repositories at the same time?

  - by vfclists

  Is it possible to push to 2 or more remote repositories at the same time? I only want to mirror the main repository, where most if not all the pulls will come from.

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• Crash the program with cmd line args

  - by Debanjan

  Lets us consider the following program : #include <stdlib.h> int main(int argc, char **argv){ int a,b; if (argc != 3) return -1; a = atoi(argv[1]); b = atoi(argv[2]); a = b ? a/b : 0; return a; } The task is to crash the program by providing arguments in command-line.

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• java RSA Multiple Encryption

  - by user1763730

  I encrypt my message with a symmetric key and the symmetric key itself has to be further encrypted with different RSA public keys. When I tried to implement the above I got the following error: javax.crypto.IllegalBlockSizeException: The input was invalid: Invalid input length. at com.rsa.shareCrypto.j.hD.engineDoFinal(Unknown Source) at javax.crypto.Cipher.doFinal(Cipher.java:2087) at wrap1.main(wrap1.java:69) Is there a way to solve this problem ?

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• Where on the server are the svn folders I checked in?

  - by johnny

  Trying to understand something. I created a d:\svn\repository on my server. I committed folders but when I go back to d:\svn\repository I do not see them. Are they all in a database? Will all my repositories go in that main folder and svn tracks them? What if I have two projects? Thank you.

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• View execution line in netbeans

  - by AC

  How can view the execution line used by netbean v6.8 to execute my java application when I press the run program button (right pointing green arrow)? I'm looking for something like: java -cp build/class Main I'm trying to make the jump to java IDE developement from 15 years writing c and c++ with vi. I'm starting with netbean since it seems to have the best vi key bindings.

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• Language to write a Windows application that doesn't take up a lot of space

  - by bobir

  I need to write a Windows XP/Vista application, main requirements: Just one .exe file, without extra runtime, like Air, .Net; posstibly a couple of dlls. Very small file size. The application is for network centric usage, similar to ICQ or Gtalk clients.

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• How to pickle and unpickle objects with self-references and from a class with slots?

  - by EOL

  Is it possible to pickle an object from a class with slots, when this object references itself through one of its attributes? Here is a simple example: import weakref import pickle class my_class(object): __slots__ = ('an_int', 'ref_to_self', '__weakref__') def __init__(self): self.an_int = 42 self.ref_to_self = weakref.WeakKeyDictionary({self: 1}) # __getstate__ and __setstate__ not defined: how should this be done? if __name__ == '__main__': obj = my_class() # How to make the following work? obj_pickled = pickle.dumps(obj) obj_unpickled = pickle.loads(obj_pickled) # Self-references should be kept: print "OK?", obj_unpickled == obj_unpickled.ref_to_self.keys()[0]

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• FileInfo displaying a peculiar date

  - by Berlioz

  Why does the following display 12/31/1600 ??? Imports System.IO Module Module1 Sub Main() Dim fi As New FileInfo("DocFiles\phillips_phone_number.txt") Console.WriteLine(fi.FullName) Console.WriteLine(fi.LastAccessTime.ToShortDateString) Console.ReadKey() End Sub End Module

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