Software Development Forum

Hi All, Apologies if this has been mentioned before, but haven't come across anything from my search... I have a strange issue at the moment where when I debug and step through my code, as soon as the first declaration (DIM statement) is stepped over, the value is being set …

Write a complete C++ program that reads the attached file (values.txt) to find and print the following: a. The average value of the numbers in the file. b. The maximum and minimum value c. The count of negative and positive values (ignore zero) #include <iostream> #include<fstream> using namespace std; int …

what is the notion of event driven architecture in context of GUI ?

I tried all possible test cases and It outputed the correct answer , I wonder why UVA doesn't accept my answer <#include<iostream> #include <stdio.h> using namespace std; int main() { int i, j; unsigned long long int tempI, tempJ; int maxCaseLen = 1; int count = 1; while (scanf("%d %d", …

"a menu must be provided that asks the user of the software what task they would like to perform; it then activates the required task. The menu should loop until the user requests to exit"- that is the requirement. And i haven't learn about switch-case. So how can i create …

I have following code for date and time in vb.net. I am not able to set timer in the textbox 4 and 5. What could be there in timer1 event? Dim theDate As Date theDate = Format(Now(), "short date") TextBox1.Text = theDate Dim mytime As System.DateTime Dim hours As Double …

Can any guy tell me what is the differnce between a datareader and a dataadapter? Also what are the other method to search data through SQL queries??

Hi guys , I dont have idea on how to solve this problem . I attach my question but I dont know whether it is true or not. Can you please help me Given an output file named "data.txt" write the code fragment to i ) set up the file …

this is what i want to do but it seems my code doesn't do what i wanted. when i select an item in cbo_Item i want to loop the corresponding Item_Stock into cbo_QTY where all the numbers below Item_Stock is shown in cbo_QTY...here is my code... Private Sub loop_QTY() Dim …

I am using vb.net with OleDb database. Following is my code, although i am to search database but not able to save after making changes. It displays following error at Command.ExecuteNonQuery level as OleDbException was unhandled, Data type mismatch in criteria expression. Imports.Sysytem.Data.OleDb Private Sub Form1_Load(ByVal sender As System.Object, ByVal …

Hi and good day to all, Just a curious question, when I am comparing a String object with blank space(" "), I type x.equals(" ") in my Netbeans IDE(x is a String type variable), but Netbeans automatically shows it's an error and change it to " ".equals(x) instead. Anyone here …

Hi was wondering if anyone could take a look at my code and see whats going wrong here because I have changed the code about 20 times trying to fix the error and still no luck. I have created a web page that the user must fill out, I then …

import javax.swing.JOptionPane; public class StudentReport { String name; //name of the student String schoolName; //name of the school String schoolGrade; //grade in school int numOfGrades; //number of grades or number of classes double grades; //grades received double average; //average of the grades double total=0; //initialize total String trash; //to convert …

i have this code which tries to enter data into an array of string(char ptr) called token.To do this i have used a while loop to obtain a string as user input and put that string into the token array one by one. But when i try to print the …

I am getting an error in the header file: class linkedStackType: public stackADT<Type> Can you see anything wrong with what I have, and why the compiler is complaining about "stackADT"? I would love it if you could give me some insight into this matter. Right now I'm only concerned about …

hello, i am in need of some help with a bit of code i been working on. i am getting "illegal start of expression" and "reached end of file while parsing" errors and its been bugging me for awhile as i am not sure why. can anyone help me to …

// This program uses the a queue template to create a queue of strings. #include <iomanip> #include <iostream> #include <cstdlib> using namespace std; // // TO CREATE A "template" class named "T" template <class T> // // TO CREATE A CLASS NAMED "Dynque" class Dynque { private: struct QueueNode { …

{file has 1000 lines that look like these 114680858 19670607 Matilda Vincent MI 114930037 19471024 Desdemona Hanover ID 115550206 19790110 Xanadu Perlman ND 116520629 19630921 Alexander Hall SD 117050976 19301016 David Lamprey GA 119610646 19650202 Thomas Porlock IL 120330928 19621126 Cary Cartman NC struct employees { int ss_number;//social security int …

Hello, I have a bug in my program somewhere and I cannot understand why. The program merely prints data from a binary file. Here is the code: #include <iostream> #include <fstream> #include <vector> #include <cstdint> using namespace std; int main(int argc, char *argv[]) { if (argc!=2) { cout<<"Invalid argument count, …

Who can tell me the difference between MessageBox.Show and MsgBox in VB.NET?

Hello, I am delving into OOP now and am having issues with creating properties. Below is my code. Basically what I did is created a custom class and am creating a property within that class. But what happens is it will put a red squiggly under 'Multiply' saying 'not all …

i am trying to overload +operator to concat 2 strings i tried to write a code but it is giving 2 errors and i am also not sure whether logic is correct..MY CODE is [CODE]#include<iostream.h> #include<conio.h> #include<string.h> class string { char *str; public: string() { cout<<"enter string"; cin>>str; } void …

I have a homework to make a calculator(infix-to postfix) and I need to do it asap. I get always an error when I run this code(Enter a postfix expression (or nothing to quit): +54 Traceback (most recent call last): File "C:\Python32\infix to postfix", line 69, in <module> main() File "C:\Python32\infix …

Hello , I have to write a code that read a file in python and convert each chaaravter to 1, or 0 and send these digets to a a selonoid to make a strike or not to make ( brille printing ) is that possible ???? please need your help …

I'm implementing a generi method that's supposed to traverse a binary tree in PostOrder but when I attempt to use it, the Iterator doesn't work as It should when I attempt to use ot on a Binary Tree, can anyone spot my mistake in the code? Thanks. The method makes …

i want a full code for finding different ways to climb the n-stair case problem that is each step is either 1 or 2 stairs. Eg- a 3-stairs staircase can be climbed in 3 ways :1-1,1-2,2-1. Using subset method can any one can help me out for this problem?

I hve sme doubt in pseudo code I hve created da flow chart and c++ code but I need to create pseudo code I dnt no hw to create it Becz da flow chart hve 2 inputs such as cot=0, ans='y' And 5 option such as add inquiry , view …

Hello, I have the following problem: Entering coordinates of points on a plain with keyboard (as rows x,y). Analysing this coordinates. Replacing coordinates in vector (point - structure data type). Then calculating distance from the first point to all another points. I've written the code of this problem using arrays …

hi so why isnt queue printing anything where it should? #include<iostream> #include<string> using namespace std; template<class ItemType> struct NodeType { ItemType info; NodeType* next; }; template<class ItemType> class Queue { private: int size; NodeType<ItemType>* front; // It points to the front of a singly-linked list NodeType<ItemType>* rear; // It points …

Hello, I have learnt a few assembly languages (MIPS/x86/ARM/MIX) and I have a question about the call stack. Each of those languages uses a different method for subroutine linkage, and the way I learnt them was not conducive to recursion. Granted, if I continue reading my copy of The Art …

Hi, i have just started programming with python and i have beken given a task where i must create a python calculator. So far i have created the code (seen below) however i need help explaining it-e.g. saying what each part of the code does: from tkinter import * root …

I have solved it... Shame... -------------------------------- I have problem with this code: cin >> str; smatch m; regex e("([[:w:]]+)@([[:w:]]+)\.com"); //<- Here was the error (it was regex e("([[:w:]+)@([[:w:]]+)\.com");) silly me :(( bool found = regex_search(str, m, e); cout << "m.size() " << m.size() << endl; for (int n = 0; …

import javax.media.*; import java.io.*; public class MP3Player { public static void main(String[] args) throws Exception { File file = new File("xyz.mp3"); MediaLocator mrl = new MediaLocator(file.toURL()); Player player = Manager.createPlayer(mrl); player.start(); } } }`` when i execute above program, it shows error : Failed to configure: com.sun.media.PlaybackEngine@ce124a7 Bad header in …

How would I write this program: Wrte a program that will read a line of text that ends witha period, which serves as a sentinal value. Display all the letters that occur in the text, one per line and in alphabetical order, along with the number of times each letter …

Dear all, I need help on programming Mifare cards. I want to be able to read and write to a 1k mifare card. I bought a ACR1281U dual reader and also have some documentation but have not understand how to read data and write data to Mifare cards. I did …

Hi, So I am working on a drink machine simulation. I have a text file that holds the prices, names and inventory. My problem is It won't let me set my prices at 1.00 or higher. Ex: I set the price to 1.50 in the text file then when the …

HI I need to copy .dll files in C:\Windows\system32\ which is found or match in my my_file.txt file to C:\tools folder. my code not work and need also to found words that can match my_file.txt. so for example I have RICHED20.dll in my my_file.txt if the same file name"RICHED20.dll" exist …

Using the sample BUBBLESORT program with CHARACTERS given in class do the following: Enter 10 words (does not have to be a phrase or sentence..you may use some digits, caps, and special characters like punctuation. Have each of these words including punctuation entered into a character array. Print out the …

Hello, I am trying to create a tone, then another tone using this code. It currently only plays one of them. Is there something missing or am i going about this wrong? for(int n = 0; n < num_samples; n++) //where n is the step |start of for loop { …

Hello All, I am working on an Access 2010 application. I would like to click on a command button and open a Adobe PDF document. The code for the On-Click event is: Set shell = CreateObject("WScript.Shell") shell.Run """C:\Program Files (x86)\Adobe\Reader 11.0\Reader\acrord32.exe"" SourceFile" When the Shell.Run line executes, Acrobat returns an …

Hello everyone, i am going to create a small tune though i have no idea how to go about it. I currently have a sine wave that plays for one second using a loop similar to this // loop to generate audio samples for(int n = 0; n < num_samples; …

Please help me I cant answers these questions at all . Question b Suppose a class named FootballClub is to be definêd. i. Suggest THREE (3) data members for the class' ii. suggest TWO methods other than accessors and mutators for the class' iii. code the class in Java based …

I am reading the (otherwise excellent) The C++ Programming Language (4th edition - Hardcover) (Stroustrup) and I cannot understand about 4 pages of it despite a lot of attention to it. It's section 27.4.1 Composing Data Structures starting page 767. After reviewing obviously unsatisfactory alternatives on page 767 for a …

If you are browsing this forum, it is a safe assumption to believe you know of the [Fibonacci Series](http://en.wikipedia.org/wiki/Fibonacci_number). After having a couple of minutes, and some random thoughts, I put together a little piece of code that will print this series out to a file. Private Sub FibWrite(ByVal iMax …

Hello, I recently took a course on assembler/compiler construction. In it we covered parsing algorithms such as LL(n), LR(n), LALR(n), and SLR(n). I understand how these parsing algorithms can be used to determine **if** an input string follows a context free grammar (CFG). At some point I also understood how …

I'm using VS 2013. I want to use the system.numerics.biginteger structure but VS says there is no such namespace as system.numerics! According to MSDN there should be. What am I missing? Imports System.IO Imports System.Numerics '<<<< error Module Module1 Sub Main() Dim OneLightYearInches As BigInteger = 372469703661417000 End Sub End …

I all as anybody tried, passing a pdf tha is in memory stream and so it directly on a div, without the creatio od a file?? Best Regards

I am wanting to create a card game that will have 1 to 7 players plus the dealer. Currently I have 1 player and the dealer. Each player will have a listbox that contains an index for each card in the player's hand. As the cards are dealt each player …

Can any one help me to convert wildcard pattern into regular expression pattern using c#.Net...?

hi so i have to make a copy of a linked list i made last week and this time i just have to update it with a deep copy concept thus making a copy of that list i made. here is my code: #include <iostream> #include <string> using namespace std; …