Software Development Forum

Hello everyone and good day!!! I'm trying to embedd an image watermark to another image for copyright protection and I plan to use DCT and embedding the watermark in the middle band coefficeint of the host image. The problem is I don't know which of the formulas to use since …

Hello again, I'm still working on my game, and now I'm running into a situation where I am using 4 radiobuttons in a groupbox for the answers, as each question changes the text of the radiobutton changes and along with it the correct answer. I want to be able to …

Hey guys.... really need your help? I'm working in VB C# 2010.... I have a windows form application where i want the texts from multiple texboxes to be added to the dataGridView as one row... can someone please tell me where to start? Thanks

Earlier today, a colleague of mine came to me with a question. He was writing Unit Tests for a serialization utility and needed to compare the generated xml with the hand written xml file which was the expected result. By eye inspection, the xml seemed to be the same, but …

Hi, This is the line: Class ourClass = new Class.forName("com.app.something"); And this is the the error: cannot find symbol class forName My IDE is Intellij Idea. This is a particular case, but i want to know what causes this type of error, what should i look for.

Hi, how do i make my webbrowser look like google chrome. With that i mean how do i make the tabs look like in google chrome? Waleed Ahmed

Hi all, can someone please help me with my code: Its suppose to input a text file of values then display them and give the max and its index, and inputed values are floats. But I can seem to get the max right. Thanks #include <stdio.h> int main() { FILE …

Hello Everyone So I have 2 datagridviews that compare information between them and if it does match it colors the rows in green and after its done all the white spaces colors the rows in RED, so the main thing is that i dont know how to print only the …

Hi all... I hope you have good time .... I have problem in the new program and I want to your help .. I want to back up the database type from Access, but my problem I could not generate code to determine the path of the database, I noticed …

hello :) i'm looking for some good Combination Optimization Algorithm, which is easy to code aswell... (combination optimization algorithms like "Hungarian Algorithm", etc.) thanks :)

Here is a very simple segment of code. What I want is when I click on the button "First Button" then the window become empty. What actually happens is the window just becomes unresponsive. What could be the problem and what could be a solution?? import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import …

Hi! I'm new, sorry if this is in the wrong place, mods please move this if necessary. Basically, I'm trying to give a breif definition of interfaces and abstract classes, please check if these are right: An interface defines what should be done not how it should be done. The …

Hello! I've been staring at my code for a while and I really have no idea where I'm going wrong. I'm working on deleting a specific node (for example, the integer 317)....but for some reason I just keep getting a nullpointer expression. I get the error when it goes into …

Here is a class to SQL use an access database: Class MyDB Public DBName As String Private con As New OleDbConnection(ConStr) Sub New(ByVal DBN) DBName = DBN End Sub Private Function ConStr() ConStr = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" & DBName & ";" End Function Private Sub ConInit() If con.State <> ConnectionState.Open Then …

I have queue class as below public class queue { public: queue(); ~queue(); bool Empty() const; void Enqueue(message^); void Dequeue(); void DisplayAll() const; private: gcroot<String^> bindingkey; queue(queue const& obj); ListNode* head; ListNode* tail; }; queue::queue():head(nullptr), tail(nullptr) {} queue::~queue() { while (head != nullptr) { Dequeue(); } } //bool queue::Empty() const …

I'm getting some errors with my code, & cant seem to find where the problems are. Basically I'm making a student class that calls out the student id & name. I hope someone can point me in the righ direction to get this code working. Thank you student.cpp: #include <iostream> …

i have to create a graph for my project i found an example that was working and followed it first time with graph. i wrote my code got no errors but when i run the code this is what i am getting i don't understand it can some one help …

I'm working on playing nim, where the person who takes the last object wins. My program is currently working, but it terminates after I only take one bunch of stones (You can take up to 3 at a time), no matter what the pile size is. Is there a way …

if(strncmp(&line[j],"MEMBERED",8)==0)

hello, i'm leaning about ActionListener but i can't compile my code, i don't know why :( this is the code package javaapplication7; import java.applet.Applet; import java.awt.Button; import java.awt.Color; import java.awt.Label; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; public class Test extends Applet implements ActionListener{ Button b1=new Button("Red"); Button b2=new Button("Green"); Button b3=new Button("Blue"); …

Hi Guys, i need to create an application that would add or remove user accounts on a mac, also provide the users with the relevent premmisions. This has to be created in order to bulk create users or remove them so the apple provided interface would not be efficiant. Any …

i have a code to read some products from a file.(.dat). it hasthe name, model number, price and its purpose. example. = knife 103 10 cut currently it can read the first 3. The question asks i make a derived class to read the purpose. Here is my code #include …

Hi, I've a unit test for a protected method that contains a ref parameter. The method to test looks like this: [CODE] protected void Select(ref int? intReturnValue, ModelBase modelbase) { ...some code.... //add the return value SqlParameter paramReturn = new SqlParameter("@ReturnValue", 0); paramReturn.Direction = ParameterDirection.ReturnValue; sqlComm.Parameters.Add(paramReturn); //run the proc sqlConn.Open(); …

** Hai friends, need your help i have done code for similarity alphabet for example if we write A it will recognize A vs B= A A vs C = A and so on.. as i shown in the picture below. But i dont know how to change the A …

I have a private ArrayList in a class and I'd like to be able to access it outside of this class, what would be the proper way to do this? Right now I've just made the ArrayList public but I would like to allow it to be private. Should I …

package array1; import javax.swing.*; import java.util.Random; class pickrand{ Random rand = new Random(); public static String get(String[] array){ int rnd = rand.nextInt(array.length); return array[rnd]; } } /*********************************************************************/ public class Array1 { public static void main(String[] args) { int size = 10; String[] passcheck = new String[size]; String[] pass = {"abc345", …

I want to output results from a postgresql table into a csv file. I can do this however its also copying over headers and a row count. Im using \o /path then my sql query; Is there a way to get rid of the headers so i just have the …

Hello everyone we use a listview box and we add some path's of the files in list and now we want to show the file icon with in file path example: listview1.item.add " D:\test.txt" listview1.item.add " D:\picture.jpg" now we want to show these files icon in my listview please tell …

I need to make an Evil Hangman game for my Java class. Can anyone help please? I really need help figuring out how to put the words into "families". Also, if you see any problems with my code or any ways that I can make the code simpler, please let …

how do u convert the below to a 'for' loop? int x = 123456; int y =0; while (x > 0) { y *= 10; y += x % 10; x /= 10;}

The hash table stores phone numbers and names, uses the names as the keys. The problem I have is when I use the terminal window to enter the names and numbers. The strange problem that occurs then is that all the names get the same phone number. But when i …

haven't been using linux for a while. remember I used to do search and replace all the time with :s/searchString/replaceString/g now I have "pattern not found: " even though pattern I was trying to search/replace was definitly there. any idea? did i forget anything?

Greetings. I did not write the below code. I got it from [Click Here](http://itknowledgeexchange.techtarget.com/itanswers/python-script-to-download-wallpapers-from-interface-lift/) Thanks for any help. When I try to check the syntax it gives me an error on the very last line of code. The error "SyntaxError:invalid syntax (line 119, offset 26):a.getWallpaperList()[/pre] #!/usr/bin/env python import urllib2 import …

Hello to all java programmers, I have a problem about method and array. The program will display the second highest value of the inputed set of numbers in the main method. The problem is that it won't accept less than four inputs which mean it is necessary to put 4 …

Guys I have some questions please help me., 1. if I make a tetris game out of c# will it be difficult to do? 2. Is it possible to finish it in less than a week ? 3. Also what should I use as a game studio? OpenGL, XNA or …

Hi im trying to learn polymorphism and i stumbled upon a question. Polymorphism to me means 1 with many forms. here is my code: // virtual members #include <iostream> using namespace std; class CPolygon { protected: int width, height; public: void display(); virtual string area () { return ("FIRST"); } …

Problem 1: Phone book. A phone book file is organized so that each line is an entry for one person. Each line has the following format: first, a name (one word, no spaces), then zero or more phone numbers, each preceded by a space (no spaces within a phone number). …

Hello, guys. This is the fragment of my program. I can't initialize the dynamic two-dimensional array. The compiler says to me that 'y' cannot appear in a constant - expression. But I need that both x and y to be dynamic. How can I fix that? ` float a; int …

How to get get complete column from database to combo box ?

hello, I want to make a program that enables me to read data from my 4-CH usb 2.0 DVR. any one to help me do that? thanks in advance

How do I find the number of USB ports available, and what their references are. Example there are 6 USB ports on my motherboard what code would I use to find their reference like, port 1 is called 0 and port 2 is called 1. I want a user to …

I have created a Combo box with the 3 items. And one more Combo Box with the 9 items. When one item of 1st combo box selected,the 2nd combo box should show only 3 items out of 9 items. how to do this? I tried but not getting it.

Hi there one and all. I am attempting to learn to code in python with the intention of teaching it to a class of 12 year olds later in the year!!! So far I've been going ok if a little slowly, however this one is stumping me. I am trying …

Hi guys can we update data (Edit) in view table in sql server? If Yes How ,if No Why? Thanks in advance......

import java.util.*; import java.io.IOException; import java.util.Scanner; import java.util.Random; public class LinkedListProgram { public static void main(String[] args) throws IOException { int i,number, ran; Scanner sc = new Scanner(System.in); LinkedList<Integer> list = new LinkedList<Integer>(); ListIterator li; String line; Random random = new Random(); int pick = random.nextInt(150); System.out.println("Enter # of nodes"); …

I'm using a loop to get user input and compare it; Idk why but on the first iteration of the while it works fine and displays only once. Second run thru I get two prompts, hoping someone can point out where I'm screwing up. public static void main(String[] args) { …

I need to make a program that runs two threads. One that outputs ping and sleeps for ten second and one that outputs pong and sleeps for ten seconds. Everything works except instead of sleeping for ten seconds everytime the thread is ran its just jumps to the second thread …

Hi, i'm new to python and I'm having a problem that I'm not able to solve. I have the following 2D array: valuearray = [['A', '21', '45'], ['A', '12', '23'], ['A', '54', '21'], ['A', '15', '54'], ['B', '23', '53'], ['B', '34', '53'], ['B', '32', '54'], ['B', '24', '13'], ['C', '31', …

I have this Singleton class: package com.CCharles.Singleton; import java.util.ArrayList; public enum Singleton{ INSTANCE; public void createList(){ ArrayList arrayList = new ArrayList(); for(int i=1;i<101;i++) { arrayList.add("Job "+i); } for(int i=1;i<101;i++) { System.out.println(arrayList.get(3)); } System.out.println("DONE"); } public void sayHello(){ System.out.println("Hello World"); } } and I am accessing Using: package com.CCharles.Singleton; import com.CCharles.Singleton.Singleton; …

Hi, I have an application that is running in the system tray. It displays a popup menu when the user right clicks on it. I need to set shortcut keys for displaying the popmenu and also for the menu items. Is this achievable? If yes, then please advice.