Software Development Forum

hello! i am trying to launch a java program that calculates the time of launch. let's say i want to arrive at a certain place at 10:06:55 and it takes me 1:24:40 hours to get there, so to be able to write such program i should take in consideration several …

/* Hi, In my process of C code optimization*/ Clip(int Val) { return (curr < 0 ? : ((curr > 255) ? 255 : curr)); } /* I want the int value to be clipped between 0 to 255. Is there any other way to optimize above code snippet? */

Hi, I have developed a windows form application. In this, I created a search history option to search history of records. The database having these followings fields : 1.Customer Name 2.Project No 3.Date 4.Model Name 5.Type and some others fields are there. I created one textBox and two comboBox to …

Hi Can someone explain to me why when i compare the array values for my code below,if i use "==",it will only compare 1 time. However,if i use ".equals", it will work correctly. import java.util.Scanner; import java.util.Arrays; class normalsorting { public static void main(String args[]) { String input; System.out.print("Enter Jumbled …

hi to all im new here, i have some difficulty in displaying records from database to my combobox here is my code in the form_load [code] Private Sub Form5_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load Dim con As New SqlConnection con.ConnectionString = "Data Source=.\SQLEXPRESS;AttachDbFilename=C:\Users\lito\Documents\QMP_DB.mdf;Integrated Security=True;Connect Timeout=30;User Instance=True" …

i am trying to access my video devices for live streaming using the code public class WebCam { private static Player player=null; //private static Processor processor=null; public static void main(String[] args){ try { MediaLocator mediaLocator=new MediaLocator("vfw://0"); player=Manager.createRealizedPlayer(mediaLocator); player.start(); Component video=player.getVisualComponent(); if(video!=null){ JFrame mediaTest = new JFrame("My WebCam"); mediaTest.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); mediaTest.add(video); mediaTest.setSize(300, …

this is my code , it should save a pdf file from sql server to a folder but nothing happened can anyone help please ?? Set rs = New ADODB.Recordset rs.Open "select * from PDFStore where filename='" & co_name.Text & "'", db, adOpenKeyset, adLockBatchOptimistic If Not rs.EOF Then Set pdffile …

I am creating an app. where I need somewhat help. I use font dialog box for textbox... and this working but How can I save the font on the settings??? I mean: I am creating the notepad app.exe in such a way that whenever the user change the font, then …

i have been looking around and its hard to find what i want. I am able to add context menu item to a FOLDER by doing this: [HKEY_CLASSES_ROOT\Directory\shell\Command] @="TestRightClick:" [HKEY_CLASSES_ROOT\Directory\shell\Command\Command] @="myExe.exe %1" I need to have "context menu for all the files in folders of a particular directory". context menu …

Hello, i'm working on a simple program where i can enter a name and number and it will save it to notepad .txt file. I have everything figured out up until actually saving the text i enter. what code do i use to do this, in the program i have …

Write a program to read the coefficients of a series of quadratic equations from a text file and print the associated roots, or appropriate errors if there are no real roots, to another text file. If a == 0, no solution, and if (b2-4ac) < 0 it has only complex …

I was reading through some C++ code, and I noticed if(;;). I've tried to Google it and even search on here, but it seems to ignore the brackets in searches. Obviously I know what an if statement is, but what do the ;; mean inside the brackets? EDIT: nevermind, as …

Hello everyone! Recently I have been incredibly interested in language design/implementation. I have written multiple functioning language front ends (Lexer, Parser, some execution) and have decided a few things. My systems are getting ugly, there needs to be more abstraction I can't execute code in the parser -- it's just …

Hi Everyone, Sorry to be such a noob, but I am hopping you guys can help me out a bit. I keep on getting this error "expected an expression error" in the first open curly brace of the 'void playerCMD();' function and also in case 1. I am using the …

'm having some problems, can't findout what is problem with my Update system. I'm using XML file for it. What I'm trying is to get application to read xml file for updates(like some news system) and to get updating application if there is new version. I added already on top …

Should I be using std::wstring or std::string and wchar_t or char? All this unicode stuff is confusing me. I want my application to work on both windows and linux without too many problems and changes but I'm considering unicode vs. ansi. Any ideas? I ask because I see many applications …

In my new project I get this error when I debug the solution (hit f5). I never caught this one and it only happenes when I select my "LoginPage" as my Main Form in the Application Tab. Other form load just fine but when it comes to debugging with this …

I have text box and now i want to set the value of text box equal to the property value

What I know is Linear Search and Sequential Search are same, if my knowledge is correct then kindly guide me wether the below algorithm work for linear search or not as it is a Sequential Search algorithm. > Step 1. Initialize searcharray, searchno, length. > Step 2. Initialize pos=0. > …

Dear All I am using Vb.net to update a database running on SQL Server. I am using the following to increase the value of the NextPlan in the SystemControl table in a SQL database. Command.CommandText = "UPDATE SystemControl SET NextPlan = NextPlan + 1" Command.ExecuteNonQuery() Once the Command is executed …

I need a textBox that accepts only numerical values ranging from 1 to 10 for my application. Can you assist me please? Take a look at my code (it only does half the job since text inserted from the clipboard using the standard right-click menu strip of the textBox will …

I am trying to add a custom widget dynamically, multiple times. However, the widgets just stack up in the same place. I have tried several combinations of Layout() and Fit() and setSizerAndFit() after adding custom widget to the sizer Thank you for any help #!/usr/bin/env python # -*- coding: US-ASCII …

num_trades = int(input("Number of trades for today?")) for i in range(1, num_trades + 1): action = input("Trade number", i ,"(buy/sell)?") num_shares = int(input("Number of shares to buy?")) price_per_share = float(input("Price per share?")) I'm getting a TypeError on the line "action = input("Trade number", i ,"(buy/sell)?")" Help Thanks

what is "System.Uri"????

Hi, I see a change in the font with string created by graphic2D from other labels. Is it possible to obtain a uniform font? package com.HIPS.biosynML; import java.awt.BasicStroke; import java.awt.Color; import java.awt.Component; import java.awt.Dimension; import java.awt.Font; import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.Insets; import java.awt.RenderingHints; import java.awt.Shape; import java.awt.font.FontRenderContext; import java.awt.font.LineBreakMeasurer; …

Hi all, I want to create all possible combinations of a full binary tree which must have exactly 4 leaf nodes and 3 internal nodes. I want to create it using recursion and tree must be simple binary tree not a binary search tree or BST. Kindly suggest algorithm to …

I am trying to create Line objects and add them to an array list. The problem I am having is excluding any lines that are similar to each other. I have already created an equals method that compares two lines to determine if they are equal. I am having trouble …

Basically im using switch case to set strOutput. But i get duplicate values instead.. strInput="00\~01\02~" This is what i get: A AB ABC My desired outcome is: A B C MatchCollection matches = Regex.Matches(strInput, @"\d{2}\\"); string range = matches[0].Value; switch (range) { case "00\\": strOutput += "A"; break; case "01\\": …

I have an integer dataframe and in my code I am doing some length calculation( which can be only perfomred on string), therefore I need to convert my dataframe to String. I have tried using str(), its not helping me, it would be helpful if you could suggest something.

I've been working on a small API/Library and I realized that I was returning memory that wasn't going to be consistently put on the heap or stack. So my question is this: when I return an object from a function in a Library, should that object be on the heap? …

Hello, well I'm doing a rational class and i'm having trouble with the subtraction part. I have done add, multiply, and division correctly. Therefore, I would like a little help on subtraction, and i'm set. public class Rational { // TODO Auto-generated method stub //Data members private int numerator; private …

> WE'll be taking inorder traversal of the tree and during the traversal will modify the right pointers only(using method "make_right") such that a linked list is formed having only valid right pointers. Then another method "make_left" is called to make the left pointers of the nodes point to valid …

first hi,i'm 19 yeesold,not a native english speaker :(),right now i'm so exited for learning programming i already know some html5 and css3 and willing to take it deep with java script my first question is what is the difference between java and JavaScript and where each one is used. …

Hi, I would like to to to store the Name and Items of ComboBox into dictionary. With the below code,I am able to store them. However, Name of ComboBox is as counting ComboBox10 to ComboBox1n. I would like to store Name of ComboBox as ComboBox1,ComboBox2 rather than ComboBox10 to ComboBox1n …

Hello Everybody I am successful in displaying Diagonal Array elements, but failed to display Non Diagonal array elements I tried a lot but unsuccessful. Here is the code what I am try with - #include<conio.h> #include<iostream.h> void accept(int a[4][4],int size) { cout<<"Diagonal One:"; for (int i=0;i<size;i++) for(int j=0;j<size;j++) if (i!=j) …

current code: Response.Redirect("DeviceInformation.aspx?arg=" + e.CommandArgument); which redirects to a page with a data grid. The argument is passed into a stored proc on a database and the infor is returned in a grid. What i want, is the same thing, but, open it in a new page. So something like: …

I saw this code on stack overflow def writeProfile(profileName, profileData): """ pickle user profile data """ os.chdir(PROFILE_DIR) fileName = profileName + ".dat" f = open(fileName, "wb") pickle.dump(profileData, f) f.close() os.chdir("..") It is for saving progress under the pickle module. I don't see a way to save variables. How would I …

This is a really simple way to maintain an options file for your application in case you don't wanna mess with registry entries, along with added support for comments inside the file. The file will be created at the same location with the executable. In addition, if an error is …

Hello to all am new programmer facing a problem in saving three checkboxs into database for example a b c all of the has a value in the database any one can heple from scratch I'll be greatfull regards,

Hi, I have two databases. In my code, I open the first database and list all of its databases. With my code, I open the second database. Essentially I want to override the tables in database2 with the tables in database1 so I am trying to delete the tables in …

Have been studying [Reservoir sampling](http://en.wikipedia.org/wiki/Reservoir_sampling) for a couple of days , What I'v tried here is to draw a uniformly random sample of size 3 from a bigger data (the English alphabet) via reservoir sampling. Below is what i'v come up with. if anyone could review my code and offer …

Hi, I am working on a problem. I have a set of advertisements that I need to print on a paper. The ads may be half page, quarter or full page. The advertiser may specify the location (geographical area - out of finite set of areas), intensity (number of flyers …

Hi I'm trying to create an array of function pointers contained within a class, the C++11 way. Can I have some help with this as I'm getting a bit mixed up. Here's what I have done so far. They are made up classes to define the problem. #include <iostream> #include …

I taking data from 3 tables to crystal report.Tables are 1.Moblization -primary key is Fen_Inovoice_No 2.invovoice details -Primary keys are Fen_Inovoice_No and description 3.Client details-primary key is Contract name I 'm using this query to retrive data Dim cryRpt As New ReportDocument CrystalReportViewer1.SelectionFormula = "{Mobilization.Fen_Inovoice_No}= '" & Varibles.invoice1 & "'" …

Hello again. I am stuck with this example: #define Listof(Type) class Type##List \ { \ public: \ Type##List(){} \ private: \ int itsLength; \ }; could anyone explain to me what is the intention and the point in this example? beacause I found this example in a book but not …

Hi All, I am having a JTable which runs so strange. Jtable is very basic having three rows and three columns. If I use SetValue method to place data in any cell and run the program JTable is not visible. If i delete the SetValue Method from the program and …

> Below is the code of Server using System; using System.Collections.Generic; using System.IO; using System.Text; using System.Net.Sockets; using System.Threading; using timerss = System.Timers.Timer; namespace Magic_Client { class Program { static TcpListener server = new TcpListener(4296); static TcpClient client = new TcpClient(); private static Thread thread; private static timerss timersss; private …

/*Hi, I was trying to optimize my application in C. In that process to reduce the complexity at condition checks which of the below is efficient,*/ if(bFlag1 && !(Var == 1) && bFlag2) //or if(bFlag1 & !(Var == 1) & bFlag2)

Hi, I need to retrieve records from access database in c# which falls between date1 and date2. anyone could help me out this...

I'm aware that to display the Control properties, you just need to use a code like this System.Reflection.PropertyInfo[] propertyInfo = button1.GetType().GetProperties(); for (int i = 0; i < propertyInfo.Length; i++) { textBlock.Text = i + " " + propertyInfo[i].Name + "\n" + textBlock.Text; }; You can also get the names …