Software Development Forum

I want one picture to be displayed in the canvas then the another to be displayed in the canvasafter 2 seconds. i used time.speed(2) and canvas.delay(2000) but nothing works! Any help please?! import ImageTk import tkMessageBox from Tkinter import* from turtle import * import time root = Tk()#main window canvas …

Hi there I need help writing a data structure to hold and assign data to a particular unique ID. I think I want an vector of structures: struct Data { int ID; double latitude; double longitude; int speed; int altitude; }; I receive messages in the above format, they can …

Review for a final and I had a question... You are give a hash function h(x) = x%11 and the size of the hash table is 11. The inputs are 4371,1323,6173,4199,4344,9679,1989. What would the resulting hash table be using quadratic probing. Would I start with 4371 and then do the …

Hello, I am supposed to write recursive program. I have done this below, however I don't know if my understanding of recursion is correct. I believe that it is a method which calls this method inside. In my case (insertCommas). private String insertCommas(String str) { if(str.length() < 4){ return str; …

Hello to everyone, i recently started to learn c++ with this book "Jumping into C++" from Alex Allain. In this book there is an example of a program to get the prime numbers from 0 to 100 that Im not understanding! For what I think I understood the second loop …

hi! i want to open a word document directly from a windows form application running on visual studio 2010! i tried a particular code but it wont work!!! this is the code! [CODE]this.Application.Documents.Open(@"C:\Test\NewDocument.doc");[/CODE] i also imported and used the following header: [CODE]using Microsoft.Office.Interop.Word;[/CODE] it says that the word application does …

Hello I am making an application that will solve a puzzle for me, but before i start designing the algorithm I need to capture that region of the screen, in order to reduce the time it would take to scan the whole PrimaryScreen for the objects I am looking for. …

Hi there, I have been trying solve my error at this codes, it takes me too long. Code: Private Sub OK_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles OK.Click Dim conn As New MySqlConnection Dim myCommand As New MySqlCommand Dim comm As String Dim myconnstring As String Dim UserID …

Hello, I need help with creating 6 buttons can I do that using some loop and how can that be done? each button has a different image and different text...their bg, and dimensions are the same Also after creating all the buttons I want to make a callback function for …

I have a problem...how can i arrange widgets inside a frame using grid? I get all sorts of weird results with widgets coming over each othe

Hi, I have a Vb.Net solution that contains several forms that read/write to an MS Access database. My problem: When I copy my Vb.Net solution and Access database to a new computer, the data source connection string needs to be changed. Currently the data sources wizard sets the connection string. …

Hi guys need help again hope you can help me.. I have a database and i want to Compute all the Total Calls of my 2nd Column I wonder how can i do that? can you give me an example? I'm using Oledb Connection? Thanks in advance.

I am trying to get a good understanding of what's happening in the following question: ~Given the following numbers in array A ... 47 43 20 24 32 44 35 ... what are the numbers that would result from a Pre-Order Traverssal of the Binary Tree built using the above …

i am working on a POS as a school project. im having a problem in getting the stocks, which is a record in my database. this is what i need to do, i need to populate the combobox with drug names with suggests. when i choose a certain drug, its …

I've just started using python in my computer technology class. One thing I can't figure out is how to have python put the lists inside a string into alphabetical order. If anyone has any easy answer, it will be much appreciated. Also, my teacher told me he would give extra …

I created an article previously doing this program in C++, but now I am trying to convert it to C. #include<stdio.h> double hamCalc(double b, double p); double cheeseCalc(double b, double p, double c); double dcheeseCalc(double b, double p, double c); int main() { double patty, bun, cheese; printf("This is the …

Hello, I wonder if there could be faster way to convert a string to .Double() and Int32(), then the methods below? The code below takes approx: 7000 ms //7000 ms String number1 = "21.58"; String number2 = "21"; double getNum1 = 0; int getNum2 = 0; DateTime dt = DateTime.Now; …

I'll try to keep it brief. When I try to pass the 'list' vector to the counter function my compiler throws an error of: "error: request for member size in count, which is of non-class type std::vector<int>*" Googling hasn't produced anything quite what I'm looking for syntax wise. If someone …

Here is the exercise: > fileWord > Write the definition of a function named fileWord that receives a string argument that is the name of a file containing words. > > The first time the function is called, it returns the first word of the file whose name it was …

Dear friends, sorry for my ignorance about python containers but I have the need to store (and access) 4 different values per file in folder, namely the filename (with its path) and 3 other values (string or None). When I access the database, I will need to know the 3 …

I have to create a class of Persons that will hold information about their name,age,NI number.These details are read from a file that would look like : 55512 Bart Simpson 45 45622 John Smith 58 46231 Alicia Sands 27 My duty is to read each line from this file and …

I want to get the relevant name of the product Id into a text box when I select the product id from the combobox myConnection = New SqlConnection(connectionstring) myConnection.Open() myCommand = New SqlCommand(" Select Name FROM [Product_Name_List] Where P_Id='" & ComboBox2.Text & "'", myConnection) Dim dr As SqlDataReader = myCommand.ExecuteReader …

Hi double[] MyArray = new double[10]; I have 10 numbers and I get average of them. But how can print out how many of the numbers that are smaller than average, and how many of the numbers that are larger than average?

Hi All, I would like to thank this community for the enormous help to develop my skills. Thanks. I have 2 databases and a single report form and a crystal reportviewer. The User can select the database which he want to work (Each of them belongs to different warehouse) So …

#include <stdio.h> #include <string.h> struct mycar { char plate[10]; int ey,em,ed,eh,emin,qy,qm,qd,qh,qmin,wd,parked; }; struct mycar car[2]; int n; void main() { void input(); void display(); int menu(); void exit(); int op; n=0; printf(">>>>>>>>>>>>>>>>>>>>>>>>+<<<<<<<<<<<<<<<<<<<<<<<<<<<\n\n"); printf(">>>>\tCAR PARK SYSTEM MANAGEMENT SYSTEM \t<<<<"); printf("\n\n>>>>>>>>>>>>>>>>>>>>>>>>+<<<<<<<<<<<<<<<<<<<<<<<<<<<\n\n"); for(;;) { op=menu(); //printf("op=%d"); if(op==0)break; switch(op) { case 1: input();break; case …

Hi I'm using a simple insert statemnt in from two textfield into my database using this code Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click If (TextBox1.Text.Trim = "") Then MessageBox.Show("PLEASE DO NOT USE BLANK SPACES", "Data Entry Error") ElseIf (TextBox2.Text.Trim = "") Then MessageBox.Show("PLEASE DO …

I am reading a doc I found online about Perl, I am learning it for a project, and I was studying code that converts currency. The code: #!/usr/bin/perl use warnings; use strict; my ($number_to_convert, $first_currency, $second_currency, $rate, %rates); %rates = ( pounds => 1, dollars => 1.6, marks => 3.0, …

I have a bash script (test.sh) which reads parameters from the command line. The parameters could look like this: param1 param2 param3&ext param4 param5 The problem is that when the script reads the parameters and then echo them I get the following: param1 param2 param3 No command 'ext' found did …

this is a very very basic question but while coding i got stuck. in c++ we use the statement: if (back_tracking(0, y + 1)) to check some condition but while coding in c# it says cannot convert implicitely int to bool! anybody kindly tell me whats the workaround in c#

This is my assignment. I've done it 36 hours straight and I can't think properly so my program looks like kindergarden kid's program. Basically, we have to do a GUI for Pizza ordering. Everything works except for the amount. The output for amount is "0.00". I have to send it …

I have a program that figures out what the total cost for gas is on trip. I now have another piece made where you enter the trip data to save it to a file. How do I make the main program call this new window so the user can enter …

So Im using our university servers through an ssh connection. I have a bunch of files in a directory which I would like to run through a perl script. So I thought this simple script I concocted should do the trick. I have used similar script on my home computer …

#include <iostream> using namespace std; class Burger { private: double patty; double bun; double cheese; public: Burger(); double getPatty(); double getBun(); double getCheese(); void setPatty(double p); void setBun(double b); void setCheese(double c); double hamburgerCalc(Burger b); double cheeseburgerCalc(Burger b); double dcheeseburgerCalc(Burger b); }; double Burger::hamburgerCalc(Burger b) { double bun = b.getBun(); …

I am confused "HOW to make a series of numbers in reverse orDer In java" I got the basic idea but i cannot join them together ...in this program compUtter Will identify weather input is binary or decimal .i am unable to make computer identify numbers in.please help wit Java …

hi i have the following problem after importing databse in c#. i have import a mdf database in C#. but it has exception after pressing `F5` for debugging. `A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. …

Hello, I have a class (Buttons.java) which inherits from JButton and implements the ActionListener interface. The second file (ButtonsTest.java) creates a GridLayout of Buttons and adds them to the applet. The issue I am having is when I click on any of these buttons, the event is not registered. I …

Hi I would like to write program that calculate the sum of all integers from a minimum number up to the maximum number.by using the following formula? sum = 1/2 * number of integer * (minimum numbers + maximum number) How can I do it?

Alright guys, I've been looking at this on google and I can't seem to find an answer. Any help is definitely appreciated! Here is the code, then I will explain my problem. void printMenu() { cout<<"||============================||"<<endl; cout<<"||=========Main Menu==========||"<<endl; cout<<"||===1.Begin DNA Creation"; cout<<"||===2.Load the Files"; if(!dna1[].strand1){ cout<<"<0>";} else{ cout<<"<"<<sizeof(dna1.strand1)<<">";} cout<<endl; cout<<"=========||"<<endl; …

Hello, I wonder if there is any faster method to find an index of an occurence within a string? The .IndexOf method in the below test, takes approx: 1050 milliseconds. Why this is interesting is that I have code that uses .IndexOf on perheps 100 places and have loops that …

how to create a pop up form for each row in datagridview that holds detailed info about that particular row of a column ? I want a editable pop up form with two text boxes and sum of both text boxes in the selected cell of the column . i …

Hi All, I have just started building a program that will allow a user to select a plant from a dropdown list and then click a button to view detail related to the selected plant in another form. I would like to be able to read from a sequential access …

Hi I am having problems running and compiling a program with more than one class, but I am not sure how to do it in netbean, it keeps complaining. I have the 2 following files called respectively Account.java public class Account { String name; String address; double balance; } and …

I am working on a program in Pro*C that uses fscanf to read a CSV file. This is a naive CSV file, with no commas allowed in the strings, and it is packed, with no whitespace between the fields. I read in a header record, which has some important information, …

I have 2 JComboBoxes that are using an itemListener, right now the code I have compiles but when I call for tankSize and fuelCost to complete my calculations nothing is returned and my answer is always zero. What do I need to change so the variables transfer to tankSize and …

Now then, It's not often I start a thread but I'm struggling to find the answer after a lot of tries on Google. The issue is that I have a "Profession" comboBoxCell as well as a "Discipline" comboBoxCell which is populated/ repopulated with a short list of disciplines dependent on …

Hi everyone, I have a project that creates a Train that pulls Boxcars. The boxcar is supposed to be generic type and have attributes such as load that adds only a specific type of object to the boxcar. The train is supposed to pull all boxcars created. I have written …

My [B]first column does not align to center[/B], although the sub-columns aligns perfectly [CODE=vb] Listview1.Columns.Add("Column1", 100, HorizontalAlignment.Center) Listview1.Columns.Add("Column2", 100, HorizontalAlignment.Center) Listview1.Columns.Add("Column3", 100, HorizontalAlignment.Center) [/CODE]

hello. I would like to know how I can make out a Java code from a given mathematical equation like differentiation equations, summation and integration

hi i have been working on my project to create a store and i have to add items and sell items, and once i add items i store them into a textfile separated by commas, and i made the add item button work perfectly but i am having trouble with …

L1.ListItems.Clear Dim li1 As ListItem Set li1 = LV1.ListItems.Add() While Not (rs.EOF) li1.Text = rs(0) rs.MoveNext Wend rs.Close