Software Development Forum

hi all could any 1 knows how to add color to printf? i mean that i want to write a sentence with color in it. thanx!

I think I just did found this out: [code] Put.str(""); [/code] How is it possible to ´emty´ a std::stringstream. In this case Put contains: 10. [code] std::stringstream Put; int i = 10; Put << i; [/code]

hi , my program calculate the area of rectangle , and I have some errors , and dont know how to correct them . this is the program , [CODE] #include<iostream> using namespace std; class Rectangle { private: double length ,width ; public: double getW(); double getL(); void setW(); void …

Hey everybody, I have multiple buttons on a form, I need to make them all have the same click event, which displays the name of the sender button. I knew that in order to make them have the same event handler, I should make there delegates refer to the same …

Hi Guys, I'm trying to read a while with the following formate 1999 43558047 2000 59068567 2001 67098709 ......................... ........................... I'm not sure how many records are in the file. Now I want to read this file using struct mystruct { double x; //this would be first column double y;//this …

In an attempt to improve my coding skills, I decided to program a very simple DOS calculator. However, when i try and compile the program, I am presented with with following: [CODE]------ Build started: Project: Basic Calculator, Configuration: Debug Win32 ------ Compiling... Basic Calculator.cpp c:\documents and settings\my documents\visual studio 2008\projects\basic …

Hi all The string_in function below is intended to take two string pointers as arguments and if the first is contained in the second, return the address at which the contained string begins. [CODE=C]#include <stdio.h> #include <string.h> #define TEST "This ain't a drill" char * string_in (char * str1, char …

I have a problem installing .net on my machine.It gives the error massage:Install security updates and I don't have facilities to download security updates.Is there a compiler for c# free of charge ,can enyone post a link.

I am new to C++ I recently been trying to write an Game data base in C++ but I succesed in nothing though the Code seem to be all right it always shows me error messages this is the Source Code i created for this program: [CODE] #include<iostream.h> #include<conio.h> #define …

This came up in another thread. I gave some advice that I'm not longer sure of. Rather than hijacking that thread, I figured I'd start my own. I advised against using the == in that thread. The context was this: [code=cplusplus] string subChoice =""; getline(cin,subChoice); if (subChoice == "100") { …

[QUOTE]Hi, I have an assignment where I need to take a string and display it in reverse order and then convert anything in upper case to lower case and vis versa. I have the first piece of the code, but I'm not sure where to begin with the second piece. …

When is it better to use random-access ? When is it not? When is it better to use sequential-access? When is it not? So far I'm only sure to use random access in a situation where I'm dealing with a fixed number of records. For example a record of rooms …

Hi, I'm wondering how your supposed to find out a widget's width in tkinter.. Little example code to explain (doesnt do anything at all) [code=python] class CustomWidget(Tkinter.Frame): def __init__(self, master, **kw): apply(Tkinter.Frame.__init__, (self, master), kw) self.masterWidth = # ???? Totally stuck, tried obvious things like master.width class MainWindow(Tkinter.Toplevel): def __init__(self, …

I have a GridViewControl on my Form in C++ .NET. I have put values to Rows and Columns like this: (3 columns and 5 rows) 1 a f 2 b g [B]3 c h[/B] 4 d i 5 e j What I wonder here is if I click with my …

When i compile my program i get the error "floating point exception". I do not know why this is occurring my code. I am hoping that this is the reason why nothing is being put into my outfile. if it is possible could you look at my code and give …

I understand how to use CreateProcess, ShellExecute(Ex), _spawn, exec methods to start a child process from a parent process. Question: Is there a way I can return values back to the parent process from the child process? For example, the child process sets an integer value and I want the …

this is some of code. I have a question. what is the meaning of '?' and ':1;' [just this part] [code=syntax] int t, dt, * cnt, tmax=0; cnt=(int*)calloc(M,sizeof(int)); ... /* Compute the mean-squared displacement using the straightforward algorithm */ fprintf(stderr,"# computing...\n");fflush(stderr); for (t=0;t<M;t++) { for (dt=1;(t+dt)<tmax;dt++) { cnt[dt]++; /* number …

I have been using VB.Net for a little while now, but I just started needing to write code to put information in a SQL Server database. I have two tables that I need to add information into. I know that I have to use an Insert statement, maybe I need …

can anyone tell me what makes C a universal language and ideal for a number of engineering solutions? Part of an assignment would be ace if someone could give me a few pointers

I need to create a program that is a table to convert between centigrade and fahrenheit temperatures. My solution must must utilize functions to perform the conversions. Requirements: 1. One of the functions must use pass-by-value, returning the converted measure 2. One of the functions must use pass-by-reference to store …

I was wondering if you could add new fonts to pygame and how you should do it. Does any one know how to do it?

please explain What are the following data types are and the storage requirements of each? -Char -Unsigned Char -Int -long -float -double Would be great if someone could help me out, thanks

I'm almost finished with this program but the problem I'm having is with freeing the memory I allocated. Particularly in the area where I have pointers to strings. [CODE]#include <stdio.h> #include <string.h> #include <stdlib.h> /////////////// user defined data ///////////////////// struct State { char * name; // state name int year; …

Hello, I am doing a file input/output. I wrote 3 fulls names, phone number, balance. etc inside my input file. Example: John Doe 555-555-5555 5000.00 In my output file, I am trying to create this output with using setw. First Name Last Name Phone Number Balance ------------ ------------ ----------------- --------- …

When I have [ICODE]sizeof(utmp)[/ICODE], 384 is returned. So when I try to find out the size of the individual members, I get a different result. Using the method below, I come up with 382 bytes. Anyone know where I'm missing the other 2 bytes? [CODE=CPP] #include <iostream> using std::cout; using …

hi. i recently implemented S-DES algo. Here is the code for key generation. [code] import java.math.*; import java.security.*; public class keyGenerator { int bitLength=10; int certainty=20; int i=0,j=0,tempInt1,tempInt2; long l; byte[] actual10Key=new byte[10]; byte[] permuted10Key=new byte[10]; byte[] permuted10KeyCopy=new byte[10]; byte[] cls10Temp1=new byte[10]; byte[] subKey8Temp=new byte[8]; byte[] subKey1=new byte[8]; byte[] subKey2=new …

Before I start, I'm sure you've all seen this error, and explained how to solve it many times before, and for that I thank you for bothering to read this, and if you choose to answer, I wish to thank you in advance. So, the issue I am having is …

What is the way to convert this int to a std::string. I have searched MSDN and found that itoa could be used (vs atoi for string to int as I know how it is done). Though I cant find any good example that shows how itoa is used or if …

I am using a "GriedViewControl" with 14 columns and with this code below I can set the number "1" to the First Column and 21 Rows down. What I wonder is how I access for example [COLOR="Green"]column 3 and row 1[/COLOR] or [COLOR="green"]column 4 and row 2[/COLOR] etc... What is …

This is the first time I have ever had to do a simulation type program. This is what I'm trying to do: Your application should use an array of tellers (10 tellers would be a good maximum) but on any particular run of the simulation, any number of tellers from …

I am confused in tellg funtion can any body tell me its syntax also for seekg();.

I'm having a problem maintaining the data in the file. Everytime I enter a person's data the display code I have only displays the first one I entered. I'm not sure if there's somethin wrong with the creating or populating or just the display code I'm using [CODE=c]void addReserve() { …

Hey guys, new poster here. I'm rather desperate here, I just do not understand the concept of templates very well. I've used the search function, but I don't see the problem addressed in any other threads. Any help is much appreciated. My assignment is to create a templated vector class …

Hi all, I have a problem with Java GUI. How can I set a certain component to be in front of another component or behind it?! i.e. Is there a way to: SendToBack & SendToFront in java?

Hello, I am having a problem to call a function I am posting the code... Can anyone help how we can solve the problem... [CODE]int AES(string path1, string path2) { ifstream myfile1 (path1, ios::binary);// error ofstream myfile3 (path2, ios::binary);//error } int main() { AES( "c:/plaintext.txt" , "c:/cipheretxt.txt" ); return 0; …

Hello, C newbie here... below is a driver for a pretty simple function which is supposed to read in n chars from input and store in a char array. [CODE=C]#include <stdio.h> #define SIZE 81 void get_str (char * array, int n) ; int main (void) { char instr [SIZE] ; …

Hi, I m trying to scroll the JLabel by adding JLabel to Jscrollpane,I can see the scrollbar,but I can't scroll as well as I found JLabel's are misplaced.Can anyone please help me to solve this. The following is the code, [code=java]class outerWindow extends JFrame implements KeyListener,ActionListener { Container c = …

Hello Everybody, If I'm a Java Newbie I am even more hopeless in VB... I'm using the Trial version of VB 8. I need to find out why am I getting an InvalidCastException on the line in red... I tried taking the .Text out but then it won't recognize it. …

Is there anything in C# that does the same function as strtok in C++. For example if I had the following C++ program how would it be written in C#? [code] // crt_strtok.c /* In this program, a loop uses strtok * to print all the tokens (separated by commas …

Hi all, I'm trying to figure out how I can call the function estimate from the main. It takes as input: [code=c] float data[], int n, int m; [/code] and should output the float *xms and the float array float d[]: [code=c] float *xms, float d[] [/code] I don't know …

Can we do like this in enums enum myStringEnum { enumItem1 = "value 1", enumItem2 = "value 2", etc } i.e.spaces in the string value, I know we can assign int value to enum but I m not sure whether string values (with spaces) can be assigned to enums. If …

I have created an application in VS 2005 pulling reports created in Crystal Reports XI Release 2. My problem is I have a couple of reports that have linked subreports on them. Does anyone know how to pass a parameter value to a subreport in .NET? I have the following …

Hi all, I am new here and to programming and i am currently trying to build an interactive form for my works. I have my form which at the moment saves text from textbox1 to a .txt file and also i have succeeded in being able to read this back …

Hi friends, I have written a function which inverts a dictionary. The code is as follows: [code=python] def histogram(s): d={} for c in s: #print c, d.get(c,0) d[c]=d.get(c,0)+1 return d def invert_dict(d): inv={} for key in d: val=d[key] if val not in inv: inv[val]=[key] else : inv[val].append(key) return inv hist=histogram('parrot') …

I cant seem to figure out whats wrong with this code, I am trying to generate random floating point number numbers with values from 0 to 1 with positive and negative values here is the code [CODE]#include <stdio.h> #include <stdlib.h> void populate(int generations) { int seed, ttt; seed = 456739853; …

Hello all, This is my first post here, this board seems to contain interesting stuff regarding C++, that's why I subscribed into it. Ok, let's go the problem... I have a class with two methods into it: floodLog writeToLog floodLog is intended to create threads that will execute the method …

Hi...Plz i'm facing some problems on how to make my program work successfully. i'm a beginner in the c++ and i have an assignement to make a text editor using the devc++..it requires certain functions and i've written this code so far but i can't handle except the choice number …

Howdy, hoping I can get alittle help today. First off I have a real bad habit of learning one thing, and getting very fascinated by it and going off on a tangent using what i learned in as many ways as I can think of. Im a very new person …

I would like to populate a listbox with multiple columns of data retrieved by a query. I am using the Listbox.DataTextField = "SpaceID" to get one value but can't seem to append others using lines like Listbox.DataTextField = "SpaceID" & " " & "SpaceName" Is there a way to do …

I'm having a tough time conceptualizing this problem. I have a recursive function computing the number of possible combinations of two numbers. I have it working fine, just need one thing sorted out. My output needs a counter to increment each recursive step. Like this: Level 1: ... Level 2 …