Software Development Forum

Hi, I am creating a hash table which is basically a pointer array of 6151 elements. I use it for chaining. But my code doesnt work properly. There's an error at T[i]=NULL and at function call. This is how it goes: [code=cplusplus] #include <iostream> #include <string> #include <vector> #include <fstream> …

Hi all This may seem relly naive but I'm only new to C++. If, in the future I want to build charting software for stock-charts, etc and want a very professional and portable widget toolkit to use with C++ which one should I use and what should I be looking …

i m making a program which initializes a 2d Dynamic array by first asking for the number of rows and columns,and then filling the array with random characters. Then i have to check for a three lettered array in the 2D array,(Horizontally,Vertically,Diagonally). i m having problem with the conditions for …

Hello, I'm writing a simple C# connectionless UDP application that communicates with a C++ connectionless UDP app. I could send from the C# to C++ using the following sets of functions fine: Send from C# to C++ C#: SendTo() C++: recvfrom() However, I'm having trouble receiving the C++ UDP messages …

I want to store two variables in an array or list in a loop to collect all my x an y, something like the append function in python, can anyone help me.

hey ol, i dnt hav much time left to solve des Q's.. can u plz guide me solving des... Fundamental Exercise /* class design, dynamic memory allocation and operator overloading */ 1. Write a program to implement Matrix class. • Implement addition and multiplication operation • row and col of …

I have a one textbox on the form and combo1 in datagridview when form is load combo1 is empty if value of text1.text is 'A' then combo1 should have below items. combo1.Items.Clear(); combo1.Items.Add("Director"); combo1.Items.Add("MD"); combo1.Items.Add("President"); combo1.Items.Add("Chairman"); combo1.Items.Add("FullTimeDir"); and if value of text1.text is 'B' then combo1 should have below values. …

Hi, Does anyone know of some source code or methods that can be used to monitor the CPU utilization in Delphi?

Ok is there any why i can call the base class this pointer or object from with in a derived class? Example: [CODE=cplusplus] class BASE { public: BASE () {} BASE(BASE & b){} virtual ~BASE () {} virtual void Method(){cout << "BASE::Method called"; return; } }; class DERIVED: public BASE …

all i want is change all the record in my table if the pcarrier="Credit" but my problem is only one data have been changes. . [code] Set rs = New ADODB.Recordset rs.Open "Select * from Soldto where cno='" & Combo1.Text & "'", cn, adOpenKeyset, adLockPessimistic If rs!pcarrier = "Credit" Then …

hello friends: I am a student of Assembly language and making some programs to have an insight of this language.. along with i am also supposed to submit a project at the end. I've made this program, which'll convert tempt from celsius to fehrenheit and vice versa..It's compiled in masm611 …

Hi there! I have written a program with fixed costs for a vacation. I need to add sales tax in for the total amount but this needs to be floating. Also, I had intended this to be a user input based program, but without knowing the float code for calculation, …

Can anyone help me how to do this? It will test if it is valid or invalid. Input Output name_123 Valid name123 Valid 123name invalid 123_name invalid this will test if the variable name declared is valid or invalid.

[code=visualbasic] Private Declare Function Function_Name Lib "user32" () As Datatype [/code] I've found such lines used in many VB6 projects and tutorials. What is it? What actually is this used for? Are there more such function? How to find out more such function/properties? A detail explanation will be helpful and …

Hey guys, I'm getting an error at lines #9 and #14. Could someone tell me what I'm doing wrong? [code=c++]StackType::StackType(const StackType & st) // copy c-tor { if ( st.topPtr == NULL ) topPtr = NULL; else { NodeType * stptr; // pointer to source Stack NodeType * p; // …

can anybody tell me why i am getting type mismatch error in checkinput function.Here is the code what i have written.error is generatiing from bold line. [code] Private Function CheckInput() As Boolean Dim row As Integer, itemCode() As Integer 'At first always Test for Empty TextBoxes If Combo1.Text = "Dept …

[code] import javax.swing.*; import java.awt.*; import java.util.*; import java.awt.event.*; import java.io.*; public class PartOfSpeech extends JFrame implements ActionListener { private JButton btn1,btn2; private JTextArea txtAreaArticle; private JTextField txtField1,txtField2,txtField3; private JMenuBar jmb; private JMenu fileMenu; private JMenuItem out; public PartOfSpeech() { setTitle("PART OF SPEECH SYSTEM"); Container con=getContentPane(); con.setLayout(new BorderLayout()); jmb=new JMenuBar(); …

Hi everyone, It seems my struggles with structures have continued. In my current program, I'm trying to pass an array of structures into a function. I've declared my structure in a separate header file using [B]typedef [/B]to define a new type called 'flight'. But when I try to compile my …

Hi, I'm writing this code where I want to match a string with a signature. A wildcard '?' would mean it can skip 1 character. A wildcard '*' means it can skip 0 to 32 characters. For example, say I have: string "screwed" and a signature "screw?d" These two would …

Hi, These days I have to install a higher version of bash under my $HOME on my office server. I hope to make the new bash automatically run both when I ssh to my server and when I boot into my office computer which loads my $HOME on the server. …

Hey friends, Started c++ not to logn ago and took right to it, up until now I have had no problems whatsoever. Now, with my specific assignment I have absolutely no idea what do to. I dont even know where to begin. I feel foolish and embarrassed and I'll i …

Hi, i have a project in which i created two classes `TreeDisplayform(Form.cs)` and MytreeNode class in same namespace. TreeDisplay class contains all the GUI related stuff like Browse button textbox, TReeView. I want the user to select a XML file through browse button which will be displayed in textbox.The Xml …

I'm having a hideous problem with a program I'm working on involving a map with pointer keys. The keys are pointers (to objects on the stack) and the data are pointers (to objects on the heap). It's the list of references for a handle class, so that if handle.destroy() is …

[CODE]#include<stdio.h> int function() { int test1; int test2; addit(test1 + test2); return(0); } void addit(test1 + test2) { printf("Sum is: %d",test1 + test2); }[/CODE] Whenever I define a void function in C with an operator in the parameters, I always get the error: error: expected ')' before '+' token How …

I have to write a program that outputs the length and width of a rectangle and then calculates and outputs the area, using a class called rectangle... I thought I was about done, but when I run the program it says width, length and area are being used without being …

Hi , is it possible to transform the following code to math [code=cplusplus] int F( int n ) { int r=0; int mid=n/2; for( int i=0 ; i<n ; i++) { if( i<mid) r+=1 ; if( i==mid) r*=2 ; if( i>mid) r=pow(r,3) ; } return r ; } [/code] and …

Hi. I have a program that goes a little like this: [CODE] // Include files, etc... int main() //code... [COLOR="Green"] if (input == "logout"); { return main(); } [/COLOR] // rest of the code [/CODE] Now, every time the program goes to main, the values previously stored in the varibles …

I'm using Python 2.5.2 on a Ubuntu box for a research project based on data from the Fatality Analysis Reporting System (FARS) database (1975-), available at [url]http://www-fars.nhtsa.dot.gov/Main/index.aspx[/url]. I found 115 characters of the form "\xzz" -- possibly hex? -- in 4+ card-image records on about 300k incidents from 1975-1981 so …

Hey! My problem is that I can't modify the "File name" label / text field programatically where you write the file name of your file in the JFileChooser. If I want to have "Write your file" written in the file name (by default) field how would I manage to do …

hi, I need some help to store each textbox value into each variables. This is my class assignment. Q.Create an applicaiton that allows the user to enter each month's amount of rainfall and calculates the total and average rainfall for a year. (user doesn't have to input all the data, …

I need some help about how to connect MS Access database in NetBeans.I visited [url]www.netbeans.org[/url] but didnt got much help related to MS Access. What I did is I start from Net Beans Desktop Application ....But when i select the option of database in it ....It asks Database URL....I have …

Hi, I currently have a string, ie [ICODE] <TEXT default_lang="en" str="Button text"/> [/ICODE] and I want to be able to remove [ICODE]<TEXT default_lang="en" str="[/ICODE] and [ICODE]"/>[/ICODE] so I am left with Button Text If you could help me in any way I would be greatful thank you Luke

Hey, I just started learning Python yesterday and I got to the end of a chapter on Branching and While Loops...which lead me to a "challenge"...basically it gives me the description of a program and I have to write it. This program flips a coin 100 times and then gives …

I was wondering do all programs have a unnamed thread by default? For example, if i have a very basic program, can i put Thread.sleep(int) anywhere in it and it will make the program sleep for a set amount of time?

Well, I don't know if this is what you would call an anonymous function, or "Lambda" function I guess, I haven't really gotten that far into languages that use them yet... but, I am writing a function that is rather long. And I want to just get through it, and …

Greeting all, Peace. I had this error [QUOTE] error C2059: syntax error : ')' [/QUOTE] in VS with c++ code, and searched the web and forums for a solution but could not find one. Finally I simply typed in the bracket ")" in the "find key" to search for all …

I am trying to sort an array and eventually get the 'n' closest numbers to the position the user chooses but i can't get the sort function to work first. Here's the code: #include <iostream> //for standard I/O #include <iomanip> //for setw(), etc. #include <cstdlib> //for rand(), srand() #include <ctime> …

I have a name mangling issue with a C++ static library that was created using VS 6.0. I'm trying to write a wrapper DLL using this static library, but i'm having trouble accessing the functions of this library due to name mangling. My compiler (VS 2005) shows this for a …

Hi folks, Just hoping someone can show me where I'm going wrong here. I've been given a tutorial question to count the number of times a particular character (char) appears in a string. The only catch is that you need to use a for loop, as the online checker won't …

[CODE]//Tic-Tac-Toe #include <iostream> #include <iomanip> using namespace std; const char COL = 3, ROW = 3; typedef int tttb[ROW][COL]; //tttb tic-tac-toe board bool winner(tttb, int,bool); //funtion name winner bool move(bool); int main() { bool isWinner; isWinner = false; cout<<"isWinner= "<<isWinner<<endl; isWinner = move(isWinner); cout<<"isWinner= "<<isWinner<<endl; if (isWinner = true) { …

i m making a hotel database management system and i have to add records, update and delete them.i m having problem in getting the input,how will i use double pointers?? and i have to get a certain number of records from the user. here is my code: [CODE] void addcustomer() …

Hi all! I've been learning C# on my own for a couple of months now and am getting to a point where I can start actually creating a program. A few days ago I fired up brain trainer 2 and one of the games was a Mastermind kind of game …

How can i display the selected item's text in the dropdownlist? Assumed i have a dropdownlist with 3 items which are: "one" "two" "three" When i selected "three" then the word "three" will appear in the textbox.

Ok, apparently my destructor isn't done yet and I'm not sure how to handle this. I have an n-ary tree that contains nodes that are built of data and a vector of pointers. Each pointer was initialized with new, so I need to delete them obviously. One friend said I …

hello friends I want to gain some knowledge on java. could you help me in reffering some good e-books. Also let me know what is the best IDE to be used for java? thanks in advance.

If my application server(weblogic) is running in windows and If I try to view one of the JSP file which prints a lot of html data generated in the server side, I am not facng any delay. i.e in the JSP I have the following lines of code. <% String …

I am trying to figure out how to read a multi line txt file with a data like ranking, athlete name and Athletic sports name with two different year records like 2007 and 2008 like 1. JOHN CARTER in Sprint Race 19. JOHN CARTER in Sprint Race I am trying …

i half understand this code, just wondering if anybody could give me helpful tips/hints about understanding the difference between these two functions [code=C] extern status traverse( list L, status ( *p_func_f )() ){ if( empty_list ( L ) ) return ( OK ) ; if( ( *p_func_f ) ( DATA( …

I'm trying to write a stack implementation that makes use of a single link list. The new Stack implementation can inherit from stackADT which I previously used with an array opposed to the link list I want to make use of now. Here is the stackADT [CODE]#include "StackADT.h" StackADT::StackADT() : …

Hi, I'm trying to count files in a desired directory using MFC... I tried the following code: [code] int CountFiles(const std::string &refcstrRootDirectory, const std::string &refcstrExtension, bool bSubdirectories = true) { int iCount = 0; std::string strFilePath; // Filepath std::string strPattern; // Pattern //std::string strExtension; // Extension HANDLE hFile; // Handle …