Software Development Forum

Need help with implementing a pure abstract class via inheritance, using namespace to wrap all my classes to avoid conflict with others. I have been able to build and run the code successfully if I remove namespace wrapper from my abstract class and all classes that inherit from my pure …

I had to make a arrayList and i do not know why is it not working [CODE]public class ArrayList<E> { private E[] theArray; private int size; private int capacity; public ArrayList(int initialCapacity) { this.size = 10; this.capacity = initialCapacity; theArray = (E[]) new Object[initialCapacity]; } public ArrayList() { this(1024); } …

I have a homework assignment due this week and am fairly new to C++. Don't have a book so I can't really go on anything other than the video material and power point slides my teacher provides. I have 98% of the assignment done, however I'm encountering logic problems. I'm …

Heya guys, basically here is some code for a simple example program: [CODE] unit Unit1; interface uses Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms, Dialogs, ExtCtrls; type TForm1 = class(TForm) img1: TImage; procedure FormCreate(Sender: TObject); private { Private declarations } public { Public declarations } end; var Form1: TForm1; …

I need to have a update button to update a edited textfield and save it to the database. I have created the button but have no idea on how to make it update the edited textfield and update the SQL database automatically. Pls help!!): This is my code: [CODE]private JButton …

Hi every1! Thats my code that used to work before I've added some attributes to my items. [CODE]void manager::EditStockItem() { ListStock(); { string z; bool found; cout<< endl<<"<===================================================>"<<endl<<endl; cout << "Enter ID of the Stock Item you want to edit" << endl<<endl; cin>>z; found = false; vector <Item*>::iterator iter = …

For a school project I need to make a timer with a bell sound that sounds every 60 seconds in VB, I cannot work out how to make the bell sound on the 60th second, I am not getting any errors in the VB console, so I assume that I …

Can you help me with one problem, I dont know how to invoke action op menu not the menu item? I have File and Help menus and I need to invoke action when the Help menu is pressed but dont understand how, I know how to do in on MenuItem …

File, new project, Java+Java application, Project name just a random name, finish. Then.. new file, Java+Java class, Class name payroll, finish.. [code] /* * To change this template, choose Tools | Templates * and open the template in the editor. */ package javaapplication5; /** * * @author computer public class …

Hi, I need to create an html page to export some information. Currently, by using java, i've exported information to excel. But now, I need to export the information in HTML page using java.Is there any APIs I can use? Thanks.

Hello everyone, Please can someone help me to debug this error? It has been giving me a huge headache since last night. Anytime I try to add new record into my database, this error message keeps coming up: "Error: INSERT INTO Customer(Cust_ID, Name, Address, Username, Password) VALUE(?,?,?,?,?,?)". I don't know …

Hey guys..I'm a newbie, so please try to use easy words, as the more complicated stuff may make me bleed out of my ears ;) So I'm trying to make this program where you type in a number using the xxx xxx xxxx style The java program will then compare …

Making a logbook using editbox for entries that fill a listbox. I have two enter buttons. One would enter line in Red one in Black but I don't know how to change the font color in the listbox. My first pascal program and this is the last step for completion.:( …

cant we compare two for inequality? i mean if i have a char array 'a' and i want to know the number of digits in an array which is not '4' or not '7' i.e if my array has value 4567778 the output should be 3 as there are three …

I need to put the number of cycles for each assembly instruction in the comment field and then calculate the total number of cycles for the entire 10 second timing interval. Need to calculate the processor clock frequency (MCLK) by dividing the total number of cycles per interval by the …

i'm studying file processing. when i execute the second code that Reading Data from a Sequential Access File something goes wrong with it. i couldn't find what is wrong. is there anyone who can help me? [CODE] /*creating a sequential file*/ #include<stdio.h> int main() { int account; char name [30]; …

I currently have two stopwatches ( running in a VB 2010 program. What I would like to do is combine their values together and have their results outputted in a string formatted as 0:00:00. I tried the Add method and the + method but this fails. This is in short …

I figured I'd ask this here before I go back to other sites. I'm trying to dynamically create a set of stopwatches and buttons. Each stopwatch will be controlled by a button which is also dynamically created. However, each time I code it, I always ended wiring both buttons to …

Hey everybody! So my problem is the very last part, getting the results of my calculation. So what i've done is created a stack with my very own stack class. The = button is suppose to display the result but i get a runtime error. Please help me out. Oh …

I have to make a small paint program using the GUI. I need to know how to use the combo box. I know I have to make an array with the list of colors but I don't know how to add it to an action listener and choose the items. …

I created on Employee master form. The details which i enter in this form is saving to sql table. But if i use Wild characters example in Name field if i enter "Varghese D'Costa", then the following error comes : Line 1: Incorrect syntax near 'Costa' Unclosed quotation mark before …

Hello. I am working on a data structures program that should be quite easy, but after programming in assembly language using mips, I forgot a little bit of C++ and can't remember how to do this. I've used my googlefu for at least 2 hours and still have this problem. …

Hello all, I need some help to get all wxpython methods that associate widgates. I mean ALL methods for wx.Button, wx.Frame etc. I will appreciate if I will get something like pdf version but anything or Idea is welcomed Thanks and regards Steve

[CODE]#include<iostream.h> #include<conio.h> struct marks { int a:3; int b:3; int c:2; }; int main() { clrscr(); marks m={2,12,5}; cout<<m.a<<m.b<<m.c; getch(); return(0); }[/CODE] o/p is 2-41 i got how 2 and 1 came but didnt get how -4 came. according to me it should have been binary for 12=1100 b can …

Hi, I have a program which is almost working now further implementation wants a records to store different entities and to create their relationship. I don't want to create the new forms what would be the best and easiest way of doing this. Any help would be highly appreciated. Best …

It starts off fine, after starting the countdown function and pressing the Action button, it causes the program to freeze. [CODE] import wx import time class LeftPanel(wx.Panel): def __init__(self, parent, id): wx.Panel.__init__(self, parent, id, style=wx.BORDER_SUNKEN) self.text = parent.GetParent().rightPanel.text self.text_2 = parent.GetParent().rightPanel.text_2 button1 = wx.Button(self, -1, 'Count', (10, 10)) button2 = …

Hi there, I have an assignment for University that requires me to use a grid of buttons in any way I want to create some sort of game. I've chosen to make mine like a Bandit machine: [LIST=1] [*]Press "Spin!" Button [*]3x3 Grid Of Buttons Randomize Their Colours (Either Red, …

i i have a listbox and 1 button in my application thing i want is when i click on some listbox item auto press that button or when i click on some item in list box it remove selected items from list box just with mouse click

hi there, i want to implement a server that receives voice packets from many clients then send these packets to all the clients so that the clients are communicated to each other through the server. how i can send the received packets to all the clients? any good tutorials or …

hi i have a problem with my interface,i want to I want when I hit the button, the progress bar goes off, so I have not found where is the problem in my code is that any one can help me and thank you. import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.JProgressBar; …

Hi, I am learning about the search capability in an array. I wrote a code that stores three names (first & last) and I want to: - Make the user select a number (from 1-3) by using a (combobox) - If the user select the proper number then a message …

which one cannot be considered as a counter variable? [CODE] counter = counter +1 counter = counter -1 counter = counter +3 counter = counter *2 [/CODE]

how to include database files into my source code package.

Hey. I'm pretty new in Python. I'm trying to read from my file all the content and put it in a string. My file looks: 1 string1 2 string2 10 string 3 and I want to obtain: ["1", "string1", "2", "string 2", "10", "string3"] using this: [CODE] def read(self): file …

import javax.swing.*; import java.awt.*; import java.awt.event.*; public class TheatreRevenue extends JFrame { /** * */ final double percent = .20; double adultCost; private JTextField label2; private JTextField label4; private JTextField label6; private JTextField label8; private JButton button1; private final int WINDOW_WIDTH = 400; private final int WINDOW_HEIGHT = 200; /** …

i am a c++ beginner and i did not get the concept of virtual functions in polymorphism i am not getting the following lines [QUOTE]virtual function has an important advantage over simple overloading .if a particular member function is not defined for any derived class but is called through derived …

please tell me step of converting java source code into jar in netbean or if any software available please send me download link of it.

The purpose of the program is to create an account where you can deposit, withdraw, and check your balance. I have to use class and put it into a project with a .cpp and .h file. When i compile this it works almost perfect, but the balance always starts at …

i need helping constructing an array of structs, this is my part of my header file which contains the following struct [CODE] struct PCB { el_t id; // contains the priority of the process string state; // current state of the process (e.g running) PCB *next;// link to the next …

hello all how to read from a text file which is not only run at the developer machine but also run at the other machine (after jar ing) I have tried ,the code run at my own machine but cannot find the text file on other machine thank you denny

Hi everybody, I have a problem and if you could help me as soon as possible I'll really appreciated I have finished a C++ program but I've got a problem in a small part of the program ,I tried to solve it many times but so far I couldn't figure …

Hi all, I ve been seeking a tutorial,article etc. about 2D cliext::vector . These are using <cliext/vector> library and cliext namespace. At once i need 2d vector decleration and its erase method to remove all rows which are full of zeros. Any help 'll be greatly appreciated.

I was writing this simple loop and it's giving me trouble. It's supposed to count through the permutations in a deck, so Suit is supposed to go as high as Suit: 3 and Rank is supposed to go as high as Rank: 12, but it isn't doing that. My program …

Hello everyone! I am new to VB.Net and I am actually developing a simple POS system. I am using visual studio 2010 and Access 2007. I created a form where the user can search the database and view the invoice details by entering the invoice id in a textbox. The …

i recently read that we can pass function to a function by using pointer to a function. i tried with an simple example.i defined sum function and passed it to average function so that it calculated average of return value from sum and 2 more nos.. rather than convenience point …

[CODE]def prel(x, i, j): if (i < j - 1): k1 = (j - i + 1) / 3 k2 = 2 * k1 prel(x, i, i + k1) prel(x, i + k1 + 1, i + k2) prel(x, i + k2 + 1, j) for k in range(i, j): …

Here is what i got. I need to count the Uppercase entered in a string. Can someone help me? Enter string: The Brown Fox #of Upper Case: 3 My Progress: #include<iostream> #include<string> usingnamespace std; int main() { char string[15]; cout<<"Enter string: "; cin.getline(string,15); . . . . } I need …

how to store MySQL table data into file and then again from file to table using java program.

Hi guys. I just having a little problem about creating a good console GUI for our homework. My program is just a simple shopping cart program where in we were asked to create a GUI that asks for the user if he is either a ADMIN user or a CLERK …

I recently added hsProgressbar.dll to my Program, it worked fine, but then I decided to remove it from my Computer and also remove it from the references...however..the Warning is still there? How can I completely remove it, so that I don't get the error anymore? Thanks in advance.