Software Development Forum

Hi! I was wondering if someone could help me figure out what may be wrong in my installing process or in my compiler... I was installing Visual Studio 6.0 C++ and everything went well until I started compiling and this is what it shows: --------------------Configuration: try - Win32 Debug-------------------- Linking... …

I'm fairly new to python and object oriented programming in general, so I'm having a little trouble figuring out why this doesn't work this is the error I'm getting for the code below: Error: 'str' object has no attribute 'insert' [CODE]filetolist = FileReadToList("test.txt") print filetolist[0] def FileCountLines(s_filename): f = open(s_filename) …

I am trying to connect Mysql5.1 from Perl 5.8.8 on RHEL5 as follows: [code] $dsn="DBI:mysql:database=mysql"; $dbh=DBI->connect($dsn, 'root', 'root', 'mysql',{RaiseError => 1}); [/code] When I try to run perl containing above connection, it gets connected to Mysql and fetches data but displays following warning. [QUOTE]DBI->connect using 'old-style' syntax is deprecated and …

I have a question I did not understand if anyone of you understood it please explain to me [B]suppose that m and n are integers and m is nonzero. Recall that m is called a divisor of n if n=mt for some integer t; that is, when m divides n, …

I have used boost's progress bar (it outputs ***** from 0 to 100% complete) to track the progress of long loops. It would also be nice to be able to see a counter along with that, like if I run 1000 tests, the *'s will go from 0 to 100%, …

Hello everybody, Ran into a bit of trouble! During compilation I get the following error: [code] fatal error C1083: Cannot open include file: 'login.h': No such file or directory [/code] The login.h does exist in my directory folder. Please let me know where I have gone wrong. I am attaching …

I was wondering how I would go about saving data within an executable, I'm not exactly sure If I happen to be wording this right so I will elaborate. For example lets say I had an application that would ftp upload specified files, but I did not want to use …

a GUI application that presents a game based on a 4 by 4 matrix of buttons.One of the buttons (selected at random) "hides" the prize. A status bar at the top of the window shows the number of guesses. When the prize button is pressed, the status bar shows "You …

[code]import java.io.*; public class getLowestValue { public static void main(String[]args) throws Exception { DataInputStream input=new DataInputStream(System.in); System.out.println("Get lowest value "); int a[]=new int[10]; int x =0, i=0, j=0, tmp=0; // display and get inputs [5] for (x=0;x<5;x++){ System.out.print(x+" Enter a number: "); a[x] = Integer.parseInt(input.readLine()); } // sorting for (x=0;x<5;x++){ …

I'm trying to implement a linked list class in a manner similar to STL. Everyithing seems to work fine, but when I try to implement an output operator to let me see what is inside the collection quickly, it starts acting wierd. Note that I use the iterator inside the …

my inheritence isnt working, it says saveAttributes isnt defined: [code=python]#!/usr/bin/env python #==========================================# # Copyright Tom Tetlaw & Shadwick (c) 2009 # #==========================================# import pickle as pk from formatting import * from locations import * from gclasses import * from gfuncs import * from items import * from objs import * …

i made a file reader but it always returns corrupted: [code=python] def load(charactor): fout = open(charactor + '.actor', 'r') fout.seek(0) actor_type = None attrs = [] for index, line in enumerate(fout.readlines()): if index == 0: actor_type = line.replace('{', "").strip() if index == 1: if line == 'attributes': if not line …

Design and implement a simple GUI application (or applet) that displays the graph of a quadratic function, Ax2 + Bx. Below the plot should be two sliders which allow the user to interactively set the values of A & B, the display being updated continuously in response to any changes …

[code] int log2(int n) { int count = 1; while(!n >= 1) { if (n%2 == 0) { count++; n=n/2; } else { count++; n=n/2; floor(n); } } return count; } [/code] not sure why it isnt working?

i am very new in java. in GUI class i have code like this : [CODE] public void actionPerformed(ActionEvent e) { if(e.getSource()==listButton){ ArrayList<String> list = new ArrayList<String>(); list.add("Orange"); list.add("Apple"); list.add("Pineapple"); list.add("Lemon"); list.add("Pear"); for(int i=0; i < list.size(); i++) { String s = list.get(i); { textArea.setText(s+"\n"); } }[/CODE] but its showing …

I want to make a square with a [B]0[/B] in it and when I click on it would change into a [B]1[/B]. (e.g. For use in a memory register in which I can set the bits manually.) Piece of cake I thought, derive from the Checkbox class and override the …

Following is a perl script. It is running on shell when I go perl followed by the filename and works perfectly. But when I try to open it from browser, it gives back a 500. The permissions are fine because if i make some syntax error, it gives me the …

Right now im making a converting program for myself. I got it to convert correctly but it only converts one character so here is my code [CODE]map<string,string>datamap; datamap["A#"]="b"; datamap["C"]="DD"; string change; getline(cin,change); for(int i=0; i<change.size(); i++) { //output based on what character gets passed to the map cout << datamap[string(change.begin() …

I am writing a program and want to have a a file loaded to be written to a specific location on the drive when an option is selected in a combobox. Here is the code that I have: [code] Private Sub ComboBox5_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles …

Hello I'm building my own html parser in python, and have ran into some problems. First off, I'm using python 3, so I can't use the old bundled sgmlparser, or beautiful soup and could not find windows binaries for lxml, so I'm rolling my own. It is for my master …

Hi, i am trying to make a general compression algorithm in c++ but i haven't really gotten the i/o part of this right yet. What i want to do somewhere along the line is to have my program parse say 10 or so characters at a time from a binary …

Hello, I'm learning to start to program in C++, and I have a problem with the prompt closing before the program ends. I know there's a lot of info about it, and I've googled it and searched here, but all the solutions to system("pause") don't work for me. I'm using …

Dear Sir / Madam, The following is the game of Rock, Paper, Scissors. But I don't know why computer is always choose Rock. My Answer:- program RPS5; {$APPTYPE CONSOLE} uses SysUtils, ourcrt; var Computer : integer; Choice, Move : char; begin repeat writeln('Rock(R), Paper(P), Scissors(S)'); readln(Choice); until (Choice = 'R') …

I am having some problems with python. If I use IE to POST data to a page using a simple form, I get the following [code] POST /automa/auth.php HTTP/1.1 Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/x-shockwave-flash, application/x-ms-application, application/x-ms-xbap, application/vnd.ms-xpsdocument, application/xaml+xml, */* Referer: http://maroon5/automa/login.php Accept-Language: en-us Content-Type: application/x-www-form-urlencoded UA-CPU: x86 Accept-Encoding: gzip, …

Hello. I am having hard time understanding recussion in binary search tree. Assuming we have 6,4,7 in our tree the following inorder function should print 4,6,7 and I don't understand how it's done. Can somebody help explaining in more detail. Thank You. [code=cplusplus] void BinarySearchTree::print_inorder() { inorder(root); } void BinarySearchTree::inorder(tree_node* …

I have two .java files and I want to access a variable of a method in one of the files and use it in another. However, I dont want to call the whole method and I dont want the method to return a value...I'll try to illustrate below [code=java] [COLOR="Red"]//file_A.java[/COLOR] …

Hi I worte this code can any body tell me why its not working Error can be seen in the attached file whis…. Value cannot be null. Parameter name : data source Private Sub btnTotal_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnTotal.Click Dim ConnectionString As String = "Integrated …

Dear Sir / Madam, Please help me again on Delphi. Please help me to write a program that uses a function to caoculate the commission payable to the sales person, when passed the commission rate for the item, the total items sold and the price per item. For example, if …

Ok I need some fast help with this, I'm trying to get a regular expression to work with my file system. this is what i currently have, but it seem to crash on, boost::regex expr(regex); [code=c++]void show_files (const path & directory, bool recurse_into_subdirs, bool lSwitch, bool rSwitch, bool aSwitch, string …

I've come across an issue and for the life of me I can't figure it out. I need some serious help confirming if i'm thinking in the right way. But say I have 3 files. TableLayout.c Powers.c Powers.h Now TableLayout.c is a class that just takes a number from the …

Hi, can anybody tell me why finalize is not called in this example? I expect finalize to get called and write the file "final.txt". I do see this file if I call finalize explicitly (see commented out line in main). A Java VM will be started and stopped when I …

I bound gridview with databse..property Checkbox -true . I have three columns roll,name ,roll. I want that on button_click, roll nos are displayed whose checkboxes are checked in gridview-- SOURCE TAB [code] <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False"> <Columns> <asp:TemplateField > <ItemTemplate > <asp:CheckBox ID ="chk" runat ="server" /> </ItemTemplate> </asp:TemplateField> <asp:BoundField …

Hi all! I'm trying to compile some code where I use a trylock, testing its return against EBUSY. The problem is that it won't compile because gcc says: error: ‘EBUSY’ undeclared (first use in this function) I'm using pthread.h and -lpthread when compiling. I also tried to unistall build-essential, update …

Hey guys, this function is for rounding 2 decimal places, e.g. 1.2785 rounds to 1.2800. First, how would I alter the function so it would round 3 decimal places 1.2780, and second how would I truncate it so it would read 1.278. Thanks! [CODE]double roundIt(double x, double n) //Write definition …

Hi, there I have some lines in a text file as 159 J=1661,3169,1679,3181 SEC=SLAB2 66 J=5597,5596,7523,7522 SEC=WALL1 How can I delete "SEC=SLAB2" or "SEC=WALL1" and modify the roginal lines into new ones, if I have RE functions 159 J=1661,3169,1679,3181 66 J=5597,5596,7523,7522 I am using and stuyding Python. Please forget me …

Hi all, Can anybody tell me how to retrieve hard drive information in vb.net . I try my best search in google but not getting the appropriate information. Its urgent. Thanks in advance. Regards G_8306

Hi all, I ve been given an assignment to be done in LINUX which requires filing for processes. I have studied about the functions to be used, [I]open, read, write[/I]. I have copied the example from the book in my text editor and it gives error when compiled. The input …

What is needed for a C++ member function of a class to behave polymorphic? Please can anyone answer me to this, and if you can give me some example. Thanks.

Hello All, I am working on a simple program that will counts the number of matches found. I then need to display the text of the last successful pattern and the text the preceeds the last successful pattern match. This is where my problem is. How can I get these …

I am trying to read an integer in from the command line, but it keeps reading in the ascii value as the int, and it completely blows up when the number is greater than 9. I know it's probably trivial but can anyone be of assistance please int main(int argc, …

I found that semi-colon are some time come to the end of the line. i.e.: end, else,... But just some time. Could you tell me when I need to put semi-colon to the line? And when I need not?

I got this assignment and the way it is worded is confusing to me. If anyone can explain it better it would be a great help also how to approach the problem Use a one dimensional array to solve the following problem. Read in 20 numbers, each of which is …

Hello, I need to make this program sort the numbers entered with merge sort then print them. I am having trouble calling merge sort and getting it to print. Here is the code: [code] #include <iostream> #include "queueLinkedList.cpp" using namespace std; /*struct Item : Data { int value; Item *next; …

Hi. In [URL="http://www.daniweb.com/forums/thread183983.html"]my previous post[/URL] people said to me i need an array. I'm trying to insert things in an array and I get errors. [URL="http://labs.wasge.es/files.php?action=file&file=files/vass/devel/vass.c&format=yes"]This is the full code[/URL]. This is my piece of code (from line 77 to 85): [code=C] int buttons_add_audio_input[howmanyofeach]; int i = 0; while (i …

Hello, I am having trouble understanding linked lists. I have to make this program that takes input, stores it to a queue, outputs that input, then sorts it using mergesort and outputs it again. It all works except I'm not sure how to call the mergesort classes. Here is the …

Ok, this is my second post...i will answer four with this rturn... wtf is with the the compiler not knowing I am making a variable known as the type I write?.. ((String)(Vector)(((Vector)((Vector)DesktopFrame.desktop.masterPane.iconPane.logoffFrame.secretData.uberSecretData.elementAt(1)).elementAt(ind + 1)).elementAt(2))) = label. Yes, Im a wannabeEverything...4 post ansers if I get One :) death

hi, im having difficulty with this python question as i am new to python. the question is: Draw up the list of possible inputs for a half adder and the outputs that you expect. Implement a half adder in a few lines of python, so that the variables o1 and …

I've got these 3 questions, I didn't work so far in C++, and this is preparation for my C++ class, These questions are a little tricky and unknown to me, I tried to find the answers in Wikipedia, but I didn't manage, if anyone can answer me, please. 1.1 Can …

Hi, there Asssuming that I have some lines below 28 J=5202,5204,7497,7498 SEC=WALL1 1185 J=289,3875,2673 SEC=SLAB2 I would like to count number of digital after "J=" on the above two lines in a text file. I am expecting results below the first line: 5202,5204,7497,7498 =====> Answer: 4 the second line: 289,3875,2673 …

Hi all Is there any class to store time in easily, without having to store a date too? We have to create a program for swimming competitions. The swimmers in a match need a time (the time they did swimming the match). So we only need hours, minutes, seconds and …