Software Development Forum

I am new at coding. I wanted to read from a file(text) and then write it to another file many times so that the file I write to becomes as large as 20MB..I read Harry Potter book for that....the code works just fine for 1000 lines etc..the file is read …

I googled little around for correct way to not reinventing of the wheel for expression evaluation (even I had done some simple evaluation check for my [Tkinter calculator snippet](http://www.daniweb.com/software-development/python/code/282548/simple-calculator) earlier). After getting totally upset with [this example](http://www.bestcode.com/html/evaluate_math_expressions_pyth.html), I made this with some struggles with `__builtins__` globals parameter of eval. First …

I have recently gotten more involved in the logistics side of my employer’s activities and we use SAP for a large part of our CMS work (specifically, SAP by Design). We have hundreds of Sales Orders (SOs) in the system and they are spread out to 2016. I am now …

I have an error called Unexpected Token 'class', did you forget a ;? I have no clue what is going on. Maybe you guys can help me out. The codes name is Player.h. The error is on line 9. #ifndef PLAYER_H #define PLAYER_H #include "Weapon.h" #include "Armor.h" #include "Monster.h" #include …

I have created the buttons for on-screen keyboard. The only thing I don't know is how to add the corresponding letter/character via actionListener to the jTextField. I know if it was not jTextField I could use "append".

Hi, I have been given the task of basically reading and writing to and from files. Below is the code from one sub: If btnSaveRecipe.Enabled = True Then FileName = "C:\Users\Leyla\Documents\Recipe Task\Recipe.txt" FileWriter = New IO.StreamWriter(FileName) For index = 0 To lstRecipe.Items.Count - 1 'For the number of ingredients in …

I am trying to write safyfied evaluator class, and get unexpected `__builtins__` added to dictionary after evaluation. Can somebody explain why/how it happens? import math def echo(n): print n return n def nothing(n): return n debug = nothing class MathParser(object): ''' Mathematical Expression Evaluator class. call evaluate() function that will …

Hi ALL, I am completely new to python and when i was playing with a while loop in the Python SHELL the code works but when I then put it into a file and saved and then tried to run it I got the error "NameError: name 'b' is not …

Hello! I am very new to Java and programming theory and desperately trying to improve my knowledge. This is the first program I've made without help and really would appreciate some feedback. I know there must be 1,000,000 better ways to do what I did. Notes: - I want to …

Hello, I want to be a Microsoft Certified Professional Developer and after googling so much, I understood that in order to obtain that certificate, I have to pass 4 exams. * MCTS prerequisite: TS: Web Applications Development with Microsoft .NET Framework 4 (**Exam 70-515**) * MCTS prerequisite: TS: Windows Communication …

Hi, I am trying to add content to an excel sheet using the below code. However, when I open the excel sheet, nothing is added. Please advice. public class StepNoToExcel { HSSFWorkbook wb = null; String fileName = "C:\\StepNoForEvidences.xls"; File file = null; StepNoToExcel() { file = new File(fileName); if(!file.exists()) …

Hello all! I would like your help please.. I have a datetimepicker and I want to use it for the time part only! So, I would like to disable its dropdown calendar.. Thank you in advance!

I am trying to update database by editing cell values in jtable. my table looks like  When i edit the value in particular cell and without clicking anywhere if i click on Update button the database is not updated as like this !  but if i …

Hello everyone,I have little problem over here with my work. It gives null pointer about JTextArea in ActionListener. Could anyone help me,please? Thanks in advance Here's code: import java.awt.event.*; import java.io.*; import javax.swing.*; /** * @author Nikola * */ public class FileListener implements ActionListener { private JMenuItem exit; private JMenuItem …

void insertion_sort(int *a, int n) { int for(i=1;i<n;i++) { value=a[i]; for(j=i;j>0 && value<a[j-1];j--) a[j]=a[j-1]; a[j]=value; } } can anyone pls explain me the flow of this code... i am having confusion in understanding the flow..

Inspired by some C and C++ threads regarding finding a specific pattern in a file.

void selection_sort (int *a, int n) { int i, j, m, t; for (i = 0; i < n; i++) { for (j = i, m = i; j < n; j++) { if (a[j] < a[m]) m = j; } t = a[i]; a[i] = a[m]; a[m] = t; …

Im taking a java class right now but I am still a complete noob. I want to make a program where it searches a text file and will write the usernames it finds to a new text file. Usernames are always found like this in the file... <a href="/user/iEpic" the …

Ok so here's the thing, I used to read in data from an excel file and bulk copy this data into a SQL table and everything worked fine. But now, my source file changed, so now i get data from a other excel file. Both file look exactly the same, …

(1)Are DOS and Windows assembly different? (2)How many registers do both 32bit and a 64 bit processors have speparetl? what is the size of them? (3)To emulate a 16bit or 32bit program under a 64bit processor, does that processor have to physically support those old 16 and 32 bit versions? …

hello friends, i have read a question about pointers and seems totally new concept for me .. how would you find out if one of the pointers in a linked list is corrupted or not? pointer is corrupted ??,, don't understand :( pls help your friend : sparsh

want to inset a field on vb form with texboxe besides it such that when i inset values a polygon is drawn. please help asap

[code] #!/bin/bash if [ [ $a == $b + $c ] || [ $b == $a + $c ] || [ $c == $a + $b ] ]; then [/code] result: too many arguments What is the proper syntax? Thanks!

hello friends, i m doing programming in vc++. but while making a basic program of link list facing a problem. when i try to add aaloc.h file it turns into atlalloc.h. there is no file as alloc.h. #include <stdio.h> #include <atlalloc.h> struct node{ int data; struct node *link; }; void …

how do i freeze a form? scenario: i'm working currently on a form (running program). i'll click a button which will direct me to another form. input info and then back to the previous form. So, how do i freeze the previous form without using unload, and the data in …

If you could help me out, thanks. using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms; using System.IO; // Adds all stuff for files namespace WindowsFormsApplication1 { public partial class Form1 : Form { static String fileloc; public Form1() { InitializeComponent(); ContextMenu editorMenu …

**Dudearoo** *Useing Code::Blocks* Hey you guys! ive got a problem with a 'test' program i have made for saveing strings. heres the code: #include <iostream> #include <cstdlib> #include <stdio.h> #include <time.h> #include <conio.h> #include <stdlib.h> #include <iomanip> #include <windows.h> #include <fstream> using namespace std; int main() { ofstream myfile ("savefile.txt", …

I'M working my way through a C++ book and now I'M doing a card deck program. Here's the line I'M having trouble with. r = card % 13; // r = random 0 to 12 card in this case is just a random int number from 0 to 51. 52 …

I would like to use an unsigned integer type for indexing a vector, but I want to use the best and optimal on every platform. How to implemet?

Hi Is there a way that i can a loop in my program Dim Total1,Total2,Total3,total4,Total5,Total6,Total7 ,Total8,Total9,Total10 as integer For I = 0 to 100 Total1= InterestRate(i, Listview1.Items(0).SubItems(1).text,Listview1.items(0).subitems(2)) Total2= InterestRate(i,Listview1.items(1).subitems(1).text,Listview1.items(1).subitems(2)) Dim Item1 as new ListviewItem(i) Item1.Subitems.add(FormatCurrency(Total1+Total2,2) ListView2.Items.addrange(new listviewitem() {Item1}) Next This works because i have know how many rows have data …

Hey I am trying to find a way for the user(not the programmer) to determine how many decimal places a number will print out to. I have tried pointers, precision mods and even a sub program to bypass my lack of knowledge in this area. Any help would be greatly …

#include<stdio.h> #include<string.h> void recurse(char [],const char *); int main() { char *charset="abcdefghij"; recurse("",charset); } void recurse(char str[],const char *charset) { int len; len=strlen(str); strcat(str,charset[len+1]); if(len<strlen(charset)) recurse(str,charset); printf("%s",str); } Like the question says, what is wrong here? This is the logic of my program 1. Keep a string called charset which …

I think this has something to do with process scheduling. (1st process) Start 0// starts at 0ms Run 10 // runs for 10 ms Disk 0 // no idea what this does, but it takes 10 ms Run 30 // run 30 ms End // terminates (2nd process) Start 5 …

Hello,, i want combo to search the whole word before space ..like for blue berries when i press B it should give the whole word blue only not berries but when i select again b the it should give me blue berries . senario.. i have 3 names in combo …

Hey Guys i am doing a small project and i am using vb.net with MS access database. i am facing a Concurrency issue sometimes when i try to save data in the datagried view. i have added the datagried view by draging and drop the table from the data source. …

Hello I am new to java and am having problem loading table numbers from mysql database to tablenumberJComboBox. I am using the load tablenumbers method. private void loadTableNumbers() { // read all table numbers from database try { // obtain all table numbers myResultSet = myStatement.executeQuery( "SELECT tableNumber FROM restaurantTables" …

I want to write a version of the SAND GAME. I want to examine the color of every pixel in a Jframe window. I use something like this. Toolkit toolkit = Toolkit.getDefaultToolkit (); Dimension dim = toolkit.getScreenSize(); int height = dim.height; int width = dim.width; GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment(); GraphicsDevice …

I need help getting the Apache POI set up correctly. I downloaded this file: [url]http://mirrors.devlib.org/apache/poi/release/bin/poi-bin-3.2-FINAL-20081019.tar.gz[/url] from poi.apache.org, and don't know what to do next? Where do I put this file? Are there other files I need to download? I hear talk of setting a "Classpath". What is this, and how …

Okay, its been a while since my last visit here..and yes I need your help with C++ Programming... My grades were fine so that's all thanks to you guys....so here's my next question.... What is wrong with my code? My exponent displays a wrong number... I used a for loop …

#include <Stdafx.h> #include <iostream> #include <stdlib.h> #include <time.h> #include <math.h> using namespace std; int rand_0toN1(int n); int hits[10]; int main() { int n; int i; int r; srand( static_cast<unsigned int>(time(NULL))); // set seed for random numbers cout<< "Enter number of trials to run "; cout<< "and press ENTER: "; cin>> …

Working on a program that needs to open a file, read the contents which is a number, save the content as an integer in the program, edit the number by one and then save in the number in the file once more.

hello bros i need help in dis i have textbox with text blahbla@lablablab blahblabla@alalalala blahbla@lablablab blahblabla@alalalala multi line and so on i would trim all text after the "@" to be blahbla blahblabla blahbla blahblabla thx in advance my bros :)

EDIT: Im an idiot. The hand-shake like mechanic i put in where the server waits for the client to respond was the reason it was so slow, removed it and it worked. I misunderstood/forgot how streams work.. Ok. So i just started learning how to use the network utility there …

I'm trying to write a simple linked list program. The header files are compiling successfully, but when I try to compile my driver program to test the program, I'm getting an error. Here's my driver program: #include <iostream> #include "Node.h" #include "List.h" using namespace std; template <typename T> void fill(List …

Hi for all and many thanks for attention, for now i'm studing the "inheritance" of a class. I have one class "Form1" and another class it have the inherit of the first "Form2:Form1" until this point all is ok, but i not need of all of Form1 members but only …

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e) { if (e.Row.RowType == DataControlRowType.DataRow) { LinkButton dblclkbtn = (LinkButton)e.Row.Cells[0].Controls[0]; string _jsdbl = ClientScript.GetPostBackClientHyperlink(dblclkbtn, ""); e.Row.Attributes["ondblclick"] += _jsdbl; // e.Row.Attributes.Add("ondblclick", "Javascript:__doPostBack('DoubleClick','" + e.Row.RowIndex + "');"); string jsCommand = string.Format("__doPostBack('{0}','Edit${1}')",GridView1.ID, e.Row.RowIndex, GridView1.EditIndex); foreach (TableCell c in e.Row.Cells) { if (c == e.Row.Cells[0]) { } else …

Hey i am making an application that stores employee's details and the output is different than what it should be i was expecting the output to be the toString() in the employee class can anyone see anythin wrong: //Imports: //******************************************************************** //Employee Class. public class Employee { //Variables. private String employeeName; …

hey, Iv been working on an swf file generator following the specification, However i am currently struggling to have my binary output match the binary output of a swf file gengerated by flash CS3. The particular part i am struggling with is the file attributes tag, the specifications for the …

hello ! may God bless all of us , well i am working on a project in which i need to create a simple desktop viewer , a user can view the screen of any computer in LAN network , how can i do this , as this is very …

I have a small problem, maybe you guys know how to avoid it. system.IO.StreamReader text = new System.IO.StreamReader(to the html path); while ((line = text.ReadLine()) != null) { newMail.HTMLBody += line } When I open html file directly from its folder where html file is,byclicking 2 times on it, All …