Software Development Forum

Hey daniweb forums, Okay so my question is, what is the difference between VC++ (visual C++) and C++ with any other IDE (or none at all). I know for a fact that VC++ is an IDE but according to some people that I have met. They say, stay away from …

I am not looking for an explicit answer to this question, and I have googled/searched this site for hours trying to find an example to work off of. What I can't figure out is how to write a nested "for loop" that will allow the user to input one number …

Hell can you help me on this,how can i insert a new node in the binary tree and to keep track the current node example: input number: 50 Succesfully inserted! input number:40 this will print "inserted at the left of 50" input numbr: 80 this will print "inserted at the …

Hey, I have a question. I was writing a custom Array type class. In my template declaration I use the type name as DataType. I was making an attempt at creating an insert method, which takes a DataType argument and the index to insert at. I originally had this code: …

im having this problem when i try to add [CODE] m + 1 = k;[/CODE] it says this- *lvalue required as left operand of assignment* in my compiler, please help. dont mind the unfinished code. [CODE]#include <iostream> using namespace std; int main() { double b, m, k; string x; b …

Please let me know if I should make something more clear 1. Each item in list contains a tuple with its name -> ((value, work), 'name') 2. the function "sort" below sorts the list of subjects by "value" in descending order 3. I get: TypeError: 'int' object is unsubscriptable (occurs …

so I have and for loop to find the highest number in and array how would i go about outputting the element number? [CODE]//compares the values in the yearAverage array to find the highest temperature for(int i=0; i<lineCount; i++) { if(yearAverage[i]>=highTemp) { highTemp = yearAverage[i]; } }[/CODE]

Below is a simplified version of the function. [code]int x; void myAdd(const double& p) { if (x > 100) { x = 1; myAdd(p); } ++x; ... }[/code] The advantage of this recursion is that I don't have to write a second function ie myAdd2. Are there any pitfalls of …

I have a function that should read in data from a file and add them to and array then i pass that array to another that totals the data then i want to find the average of that array and pass the max value to a variable 'max' with the …

I have created a function which add a row in tablelayoutpanel and textbox in column of the row. After adding few rows, i want to read the value of particular textbox in particular row. How can it be done. Remember one thing that name of all textbox is same in …

This seems to work well until I try to create the 11th button. Any suggestions? [CODE] procedure TForm1.FormClick(Sender: TObject); var nb: TButton; begin Inc(n); nb := TButton.Create(Self); nb.OnClick := ButtonClick; SetLength(ca, n); ca[n] := nb; ca[n].Left := 8; ca[n].Top := (((n - 1) * nb.Height) + 8); ca[n].ParentWindow := Form1.Handle; …

I need a RegularExpression that can convert a string from a fraction or decimal like "1/2" or "0.5" to a decimal "0.5". It needs to handle both cases. Input can be either fractional or decimal, output must be decimal...

[CODE]typedef struct electro { char name[20]; int access_number; char address[50]; float balance_due; }; electro account[10]; electro account[0].balance_due=$ 120.52; electro account[0].address[50]={Cane Gardens};[/CODE] Can someone tell em how to correct this piece of code. I'm using Codeblocks and it says it " expected an initializer before '.' " in the two last …

I have a form on my vb 6.0, i need to change the appearance. In the sense that, i can change its transparency or opacity of the way how the form looks. Is there any way possible i can do that ?

Please help! I don't understand why I am getting this error: function does not take 0 arguments. The program is suppose to calculate how much fuel is left in the tank after you drive a certain amount of miles. Can someone please help explain why I am getting this error? …

I want 1.py to call 2.py. 1.py takes an Ip address as a command line argument. I am trying a '[B]subprocess.call()[/B]' in 1.py to call 2.py. I have defined addr= sys.argv[1] before the [B]main()[/B] of 1.py. I want the same address to be accessed in 2.py. In short, 1.py should …

I want to load values from a lstview column to a combobox in another form. The problem is that, my combobox style is 2 - Dropdown List and the values in it are from my database field. That's where the error occurs. Saying [ICODE]Text property is read only.[/ICODE] I could …

C++/CLI @ runtime add a PictureBox to a tab control, I need to do this at run-time because they're to represent some data the user must be able to manipulate. I actually need them to be in some kind of scrollable panel on the tabcontrol. Any ideas?

HMm... already frustrated at it... But is there something wrong in my malloc? Everytime I try to display the record, it gives me random things as answer(see code below)? Was it that I didn't free it or was I wrong in declaring malloc itself? Thanks in advance. [CODE] #include <stdio.h> …

Im working on my first big project, a GUI library for movie files (much like in itunes). so far i have the ability to list the movies title director and year in a list box as well as add movies to the database, however it is only text no actual …

[CODE] File file = new File(args[0]);[/CODE] what this line of code actually mean?

I have 3 threads. 3 are going to do a different tasks , so different run() methods. How to overload run() method?

I got error :At the constructor MyStackThreads "class , interface or enum expected" [code]import java.util.*; import java.io.*; class MyStackThreads extends Thread { Stack thestack= new Stack(); String expression; String splitexpr[]; MyStackThreads[j] { public void run() { try { DataInputStream dis=new DataInputStream(System.in); expression=dis.readLine(); for(int i=0;i<expression.length();i++) { splitexpr=expression.split(expression); thestack.push(splitexpr[i]); } } catch(IOException …

So for some reason I my brain seems be failing me :( Anyway....I have a cylinder object in 3D space and inside of the cylinder I have line objects originating at the origin (0,0,0) (which is also the centre point of the cylinder). I would like to find the exact …

Hi, I was wondering how I can use this type of list: [url]http://palib-dev.com/manual[/url] On the left, there are expandable lists. How can I use them? Thanks.

Hi everyone. I'm having a little bit of trouble getting a piece of code to work correctly here. Here is the code. [CODE]] filename = "./" + `random.randrange(0,9999999999999999999999999999999999)` + ".txt" f = open(filename, 'w') f.write(`data`) f.close f = open(filename,'rb') ftp = FTP('ftphost.com') time.sleep(5) ftp.login('user,pass') time.sleep(5) ftp.storbinary('STOR `filename`', f ) [/CODE] …

I am working thru the Wrox book: [U]Beginning Programming[/U], and need some advice on getting a simple program to compile. I have Vista and use the free Borland C++ compiler. After entering in a simple C++ code, I was not able to get it to compile. When I attempted to …

Hi all. I have a problem with my calculator. #include <stdio.h> int a, b; /* value entered by user */ char c, choice; int main() { printf("\nThis program is a calculator.\n"); printf("Enter your calculation: "); scanf("%d%c%d", &a,&c,&b); if (c=='+') printf("The answer is %d", a+b); if (c=='-') printf("The answer is %d", …

Hi guys, I am looking for such a perl program that matches a pattern in file and print all remaining lines below the pattern. for example. If i have a file like.. Column1 Column2 ABC DEF GHI KJL ADG MKO HGI KIO HFO PIL This is a my pattern Groupname …

I have to make a Tic Tac Toe game for class and I have a problem with checking if the space is available when the player enters it. Everything else works fine. Here is my main: [CODE]#include<iostream> #include"tictactoe.h" using namespace std; int choice; int main(){ TicTacToe myBoard = TicTacToe(); cout<<"Enter …

Well, I first made a topic about JDK commands not inputting, but fixed it now. I usually do my work in class when it comes to textpad - java, but right now, working at home. Here's my problem - I can't get it to compile. It gives me an error …

Hi, This is my first post.I found interesting thing while playing with lists. [CODE]l = ['asd',"asd'das",'qw','213'] print "original list:", l print "first item:", l.pop(0) print "second item:", l.pop(1) print "modified list:", l [/CODE] [B]output:[/B] original list: ['asd', "asd'das", 'qw', '213'] first item: asd second item: qw modified list: ["asd'das", '213'] …

Hello Everyone, I need to add functionality to store the guesses the user makes in an array up to a maximun number of guesses stored in a constant. It must display a list of the previous guesses before the user guesses a number each time (excluding their first guess). Once …

Okay i have tried everything please can someone help me i am trying to restart this program so i have used a do while loop. The problem is that when i say n to terminating it just asks the question again do i wish to terminate every time i click …

Hi there! And Thanks for your help.- I've installed VB 5 Enterprise edition, and amn trying to begin self-guided studies of this language. When trying to use "Microsoft Common Dialog Control 5.0", as told in a book, cannot find it -> CTRL + T and Componets. Instead, have a "Microsoft …

I have a form set up and on that form is a DataGridView, on that DataGridView I would like to display all of a customer's transactions. I am having a problem where the debugger is throwing me a "Syntax error in JOIN operation." and I can't proceed. [CODE] ' Select …

I am new to XSLT Please help, Cannot use XSLT 2.0 The group priority level lowest(Public-1) TO Highest (PRIVATE-3) Public-1 Public-2 Public-3 CONFID-1 CONFID-2 CONFID-3 PRIVATE-1 PRIVATE-2 PRIVATE-3 For example a user LDAP query gives a file <result> <DN>CN=Test User ID Priv-2,CN=Users,DC=Lab,DC=acme,DC=com</DN> <attribute-value name="memberOf">CN=CONFID-2,OU=Groups,DC=Lab,DC=acme,DC=com</attribute-value> <attribute-value name="memberOf">CN=PRIVATE-2,OU=Groups,DC=Lab,DC=acme,DC=com</attribute-value> <attribute-value name="memberOf">CN=Public-3,OU=Groups,DC=Lab,DC=acme,DC=com</attribute-value> </result> The …

Hi, I've been trying to compile the following code in visual c++ 2010 Express Edition. But the output window just says: 1>------ Build started: Project: Ans7, Configuration: Debug Win32 ------ ========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ========== Code Follows: [CODE]/*Program to dynamically allocate a 2D array*/ …

Hello everybody, I wrote a test source code about 2 classes point and circle. These classes illustrate the center of a circle (point class) and its radius (circle class). Circle class inherits point class. Here's the code: [CODE]#include <iostream> using namespace std; class point { private: int x, y; public: …

Ok, I hope I can explain this so that everybody understands. I have a database where a column has special characters in the fields. I need to remove these characters before printing them to a file. I have the following code: [CODE]public string RemoveSpecialChars(string[] args) { string[] chars = new …

I am currently a begining Java student and have some code for someone here to look at. Now according to the NetBeans program I am using to write this code there are no errors, but when I run the code I get "Exception in thread "main" java.util.IllegalFormatConversionException: f != java.lang.Integer" …

Is their a way where the user could type Low to use the enum instead of typing 1? I know how to do this with strings, but am having trouble trying to figure it out using enums. [CODE] public enum Volume : byte { Low = 1, Medium, High } …

ok so my code displays 0 every even and odd number can you explain to me how to fix this. i have a feeling it is the displayArray. This is what dispArray should do create a method called displayArray that takes an array of integers AND an integer as parameters. …

Hi everyone. Let me start by saying I have managed to learn quite a few things and solve pretty much any python problems using this site. So thanks to everyone who contributes to these forums. Now for my problem. I am having a hard time getting the .grid method to …

I broke my foot and missed the first part of class where this was covered now I'm all confused. I have a password class and I must create within this class a static method of isValid that will accept a possible password value and return if it is valid. I …

Hi, I am getting an error while fetching the records from sql server to datagridview. Ex. I have 10 rows in datagridview first five are with one table and next five for another table. When loop goes for next table it throws an error like "timeout expired. the timeout period …

what is the use of constructors in java when we can intialize objects directly

Suppose you have an xml file that has a portion that looks like: <div id="California">The cat is in the house <p>The horse is also in the house</p> <div><a href="wwww.whatever.com" /><p>Another pigeon?</p></div> </div> Since the top div here is buried somewhere within the file, I am trying to isolate it with …

I am making a game, but my buttons don't seem to be working. When I click in a certain area (where the button is) a screen should pop up. It doesn't. Please help. [code] // The "VirusMania" class. import java.applet.*; import java.awt.*; import javax.swing.Timer; import java.awt.event.*; public class VirusMania extends …

I have an assignment where I have been asked to ask the user for input. What I am trying to figure out is if there is anyway to call and use methods of another class whose constructor requires parameters without passing them from the main class that will be calling …