Software Development Forum

template <typename a, typename ... b> class events { public: typedef std::function<void( a arg, b ... argx)> OnSomethingHandler; events(OnSomethingHandler Handler) { handlers_.push_back(Handler); } void operator ()() { for(auto i = handlers_.begin(); i != handlers_.end(); ++i) (*i)(); } private: std::vector<OnSomethingHandler> handlers_; void AddHandler(OnSomethingHandler Handler) { handlers_.push_back(Handler); } void TriggerEvents() { for(auto …

I want to format today's date like this dd/mm/yyyy Please help me

You will use the P10Class here: public class P10Class public class P10Class { public static int SEQ_NUM; public static int BIN_NUM; public static int seq_search(int[] data, int key) { boolean found = false; int i = 0; SEQ_NUM = 0; while ( !found && (i < data.length) ) { if …

Honestly am writing an application and am stuck at this point. problem is am writing an asset derpreciation application and i am calculating for Monthly Depreciation,End-of-year value ,Accumulated depreciatio.I want get the results of the values in this form in my jTable when the calculation is done. for example when …

I have a slightly malfunctioning mouse. My problem is that when my computer wakes up, often my mouse stops working. The light remains on and all buttons work but I cannot move my mouse until I unplug it and plug it back in. I've written programs to fix strange issues …

Hey guys trying to make this OO but no luck..can anyone help? import javax.swing.*; import java.awt.*; import java.awt.event.*; import java.io.*; import java.util.*; public class Main implements ActionListener { public static void main(String[] args) { new Main();// Calling the class construtor. }//end main //Setting up ALL the variables JFrame window = …

The below code simply reads the string **"This is a test"** from a text file and displayes it on the console. I've deliberately placed an endline at the end of each time the string is loaded to show that the string is all that is passed to '**mystring**' from '**myfile**'. …

Hi ! I have arrray A[n][n] and i can input numbers in the interval -100 and 100 . I need to copy array A to array C[n*n] , and copy the number who are in a user iputed interval [k;l] and sort array C. I need help . I out …

I'm getting a warning at the end of my code that says, Warning 1 Function 'Result' doesn't return a value on all code paths. A null reference exception could occur at run time when the result is used. The code works fine, but can someone explain why I'm getting this …

Hi all. I would like to know how can I code form1 to open form2 immediately when form1 loaded in Visual Basic? eg. Form1 opens and immediately form2 opens. This is almost like website redirection. Thanks.

Hi guys i am a total beginner on VB.As mention on the tittle i would love a help on my problem.Here is my code Imports System Imports System.Data Imports System.Data.OleDb Imports System.Data.SqlClient Public Class Form1 Dim conn As New System.Data.OleDb.OleDbConnection() Private Sub btnSignUp_Click(sender As Object, e As EventArgs) Handles btnSignUp.Click …

ok, NEED HELP HERE TO GET ALL THE CHARACTERS IN THE TEXT FILE AS A FULL LENGTH AND DO SOMETHING WITH IT... Line 31 #include "stdafx.h" #include<stdio.h> #include<stdlib.h> #include<string.h> #include <iostream> #include <iomanip> #include <string> #include <sstream> #include <fstream> #ifndef _DEPRECATION_DISABLE /* One time only */ #define _DEPRECATION_DISABLE /* Disable …

I am having a problem with readin input data, my program is reading the last name in my .txt document twice and inserting it into each one of my functions an extra time. here is the out put Enter the name of the .txt file that you want to open …

1. Write a C++ program that simulates the throw of a dice. The program allows the user to enter the number of throws he/she would like to do. The program then, will calculate the statistics of the number of faces appears in these throws. The program should satisfies the following: …

Hey Daniweb! What's a good site, or maybe someone could write up a quick-and-dirty example of a desktop app showing how to use the Model View Controller pattern? I'm no slouch at google-fu and found this lovely example through Wikipedia: http://www.songho.ca/opengl/gl_mvc.html which I'll look at after class tonight. I'd still …

I have looked around on the internet a little bit, but I am unable to find a function or equation for inverse/arcsine. I was able to find Inverse Cosine, but inverse sin doesn't seem to exist. Does anyone know how to use inverse sine in delphi?

i have assigned a value directly to a pointer like *ptr=12; and i have used it,no error came.if we assign like this where the pointer points to?explain me?

#include <iostream> #include <conio.h> using namespace std; void showSeats (void); char firstClass[2][6]; char busClass [5][6]; char ecoClass [6][6]; int main() { char seatType; int seatNum; char seatChar; // make all the seats available for(int i =0; i<6; i++) { for(int j =0;j<6;j++) { if(i<2) firstClass[i][j]='*'; if(i<5) busClass[i][j] = '*'; ecoClass …

I have the following web crawler code and would like to add a limit as to the depth of the search but unsure how to implement this. import urllib2 def getAllNewLinksOnPage(page,prevLinks): response = urllib2.urlopen(page) html = response.read() links,pos,allFound=[],0,False while not allFound: aTag=html.find("<a href=",pos) if aTag>-1: href=html.find('"',aTag+1) endHref=html.find('"',href+1) url=html[href+1:endHref] if url[:7]=="http://": …

# include <iostream> # include <fstream> # include <string> using namespace std; struct primera # include <iostream> # include <fstream> # include <string> using namespace std; struct primera { int ID; char nombre [50]; char fecha_de_alta [10]; char fecha_de_caducidad [10]; int cantidad_en_existencia; char marca_presentacion [50]; float costo_para_mi; float bonificacion; float …

Hey guys, so I'm making a board game in java similar to X's and O's on a 4x4 grid but there's different types of pieces etc., but what must be done is you must pick a piece to give to your opponant for them to place on the board and …

Hi All's, Really need your help, i'm trying to update existing data in MDB database by date.today but cannot update . Here my coding Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Dim con As New OleDbConnection("Provider=Microsoft.jet.oledb.4.0;data source= PTGDB.mdb") Dim cmd As OleDbCommand = New OleDbCommand("SELECT …

Why is this stacking ontop of each other, as far as the index should get each of them to next row. data1 = {'PHOTOSHOP': '6.5', 'NUKE': '7.0v9', 'MAYA': '2014', 'TESTING': '1.28', 'KATANA': '1.7', 'MARI': '4.0'} data2 = {'PHOTOSHOP': '10.5', 'NUKE': '6.3v6', 'MAYA': '2012', 'TESTING': '1.28', 'KATANA': '1.0', 'MARI': '1.0'} class …

the csbi.wAttributes are combinations of '|' operators,... DWORD textcolor = csbi.wAttributes & 0xff0f; DWORD backcolor = (csbi.wAttributes & 0xfff0) >> 4; i understand the 0xff0f is a hexadecimal value(i don't know in decimal), but why these number and not other? can anyone explain to me these 2 calculations? (they are …

dear all, i'm doing a project which involve shape (arc, circles and rectangles) i'm a newbie on VB6, done the easy shapes but problem on drawing the arc on the form to form a half-moon shape. any help or link on this will be great and appreciated. thnx in advance

Good morning! I have these VideoChatRTP class I got [here](Good morning! I have these VideoChatRTP class I got here (I just added the main) and an EncodingUtilClass class from here.) (I just added the main) and an EncodingUtilClass class from [here](http://www.java2s.com/Open-Source/Java/6.0-JDK-Modules/java-3d/com/db/media/rtp/EncodingUtil.java.htm). VideoChatRTP.java import javax.media.rtp.*; import javax.media.*; import javax.media.protocol.*; import java.awt.Image; …

Good morning! I have these VideoChatRTP class I got [here](http://www.java2s.com/Open-Source/Java/6.0-JDK-Modules/java-3d/com/db/media/rtp/VideoChatRTP.java.htm) (I just added the main and made player static) and an EncodingUtilClass class from [here](http://www.java2s.com/Open-Source/Java/6.0-JDK-Modules/java-3d/com/db/media/rtp/EncodingUtil.java.htm). VideoChatRTP.java import javax.media.rtp.*; import javax.media.*; import javax.media.protocol.*; import java.awt.Image; import java.io.*; import java.net.*; import com.sun.media.ui.*; /** * A RTP over UDP player which will receive …

i have these code for clear the screen: //clear the Console void Clear(int BackColor=0) { // home for the cursor COORD coordScreen = {0, 0}; DWORD cCharsWritten; CONSOLE_SCREEN_BUFFER_INFO csbi; DWORD dwConSize; // Get the number of character cells in the current buffer if(!GetConsoleScreenBufferInfo(GetStdHandle(STD_OUTPUT_HANDLE), &csbi)) return; dwConSize = csbi.dwSize.X * csbi.dwSize.Y; …

the prototype function is: BOOL WINAPI WriteConsoleOutputAttribute( _In_ HANDLE hConsoleOutput, _In_ const WORD *lpAttribute, _In_ DWORD nLength, _In_ COORD dwWriteCoord, _Out_ LPDWORD lpNumberOfAttrsWritten ); i'm trying use it for the 1st time... what means: "lpNumberOfAttrsWritten [out] A pointer to a variable that receives the number of attributes actually written to …

I am trying to search for a shell script if it is running and then assigning the count to a variable. Let the script be ScriptXYZ.sh. I wrote: proc_count=$(/bin/ps -ef | grep ScriptXYZ.sh | grep -v grep | wc -l) The problem that I am facing is that even when …

Thats the code i have so far: int _tmain(int argc, _TCHAR* argv[]) { for ( int i = 1; i <= 9; i++) { for ( int j = 1; j <= 15; j++) { cout << "*"; } cout << endl; } return 0; } but can't figure out …

import java.util.Scanner; import java.util.Arrays; public class project { private static Scanner keyboard = new Scanner(System.in); public static void main() { double row [][]; int positionInRow, numberInRow, rowSize, index, numberOfRows,weight; int maxWeight = 100; System.out.println("Welcome to the Band of the Hour"); System.out.println("-------------------------------"); System.out.print("Please enter number of rows : "); numberOfRows = …

Write an algorithm and draw a flowchart to print the square of all numbers from LOW to HIGH. Test with LOW=1 and HIGH=10.

Ok, hi guys.... I have some IT homework due tomorrow and I honestly don't know what to do. I've made multiple attempts and it's just not working out for me. So I'm asking for help ASAP PLEASE. The questions states: Write a program to read in the names of a …

I'm trying to convert int x and y arrays to string using a sample code found online. string Square::int2string (int x[]) { string returnstring = ""; for (int i=0; i < 4; i++) { returnstring += itoa(x[i]); return returnstring; } } but hit with the following error. Square.cpp:30:8: error: prototype …

lright, I have a combobox with a list of Food names, and the user can also add food names. How would I make this print or go to a print preview page

Hi. I have created a VB.net youtube video uploader app using Google API, which works fine. However, if I want use a proxy to upload the video, I get an error: "Invalid credentials". The proxy I am using is a public one and doesn't require any authentication, so I don't …

I do apologise for the simplicity of this post, but I am seeking help in something I have not encountered before. While I have my splash screen and program humming perfectly, I am trying to run a date check while starting and exit the program if it is too old. …

#include <string> #include <iostream> #ifndef NAME_H #define NAME_H class Name { private: std::string first_,last_ ; public: explicit Name(const std::string & first = "john", const std::string & last = "doc"):first_(first),last_(last) { if(!isvalidlast(last_) || isvalidfirst(first_)) throw "Name :: Name(const string &,const string &):invalid Name"; } static bool isvalidlast(const std::string & last){} static …

In my project, at some point I tend to load all rows in my DataSet and add them to my FlowLayoutPanel in order of their "Time" Item. This is what I'm trying to do but I need the controls to be added first if their "Time" value are the oldest …

I have query that updates the database but the problem was the datagrid is not updating.. i have to restart the program in order for the datagridview to take effect Imports System.Data.OleDb Public Class frmUsers Dim cnn3 = New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:\Users\Renz\Documents\Visual Studio 2012\FINAL\Database\AuditDB.mdb;") Dim sql2 As String Dim ds1 As …

not working. I am using python 3.3.2. please and thank you. import urllib u = urllib.request('http://www.ctabustracker.com/bustime/map/getBusesForRoute.jsp?route=22') info = u.read() f = open('rt22.xml', 'wb') f.write(info) f.close()

I am new programming in Python. I am trying to create a function that simply takes the lowest payment (which starts at 10) and it simply returns the remaining balance (after 12 months of payments). 2. Outside the function I am using a loop that calls the function and checks …

Hi everyone, I'm new in vb.Net programming and i just want to ask how to validate a "Double" data type. for example. Dim number as Double number = textbox1.text If the value of "number" variable is in "Double" data type like 1.23 or 0.12 it returns a correct value and …

I was wondering if I can fill up an edited row based on the value in my Label. Here's the scenario: An employee will add and edit rows in the DataGridView1. All rows involved in adding and editing will fill up the last row with the Employee ID of the …

Hello, I'm trying to write a program that takes an input file name and lists the folders in a heirarchy ex.Folder subfolder etc I have most of my code, but I'm getting 2 errors that are connected and I have no idea how to fix it. Here is my code: …

How To Determine The Best Score? I am doing a lab regarding 'guess number game' Actually,the answer should be the random number,but I set the exact number to 88,because it is easy for me to test other requirement. I need to printf("Best Score so far [X]") How to make comparison …

I'm starting my Computing project and am using Python linked via sqlite3 to a database. As part of my project I shall be searching for maths books in the database via name or module etc. I wish to display the results on a GUI in python so need to set …

cant figure out how to get the floors and occupancy rate to show Public Class Form1 Private Property occupancy As Integer Private Property occupancysum As Integer Private Sub GroupBox1_Enter(sender As System.Object, e As System.EventArgs) Handles GroupBox1.Enter End Sub Private Sub Button1_Click(sender As System.Object, e As System.EventArgs) Handles Button1.Click Dim intOccupancy(8) …