Software Development Forum

[CODE]#include<stdio.h> #define UN_IN -1 #define COL 10001 #define ROW 5000 int main() { int r,c; long int a[ROW][COL]; for (r=0;r<ROW;r++) for(c=0;c<COL;c++) { a[r][c]=UN_IN; // b[r][c]=UN_IN; } printf("%d %d", a[34][56],a[12][67]); getch(); return 0; } [/CODE] I was solving a problem which required large input. Am using a two dimension array but …

I have just started out with Java. I have been programing with C and C++ for some years now. I have this problem. Im not able to call a non static method belonging to the main class from the static main method. This is the code: [CODE]public class Helloworld { …

Hi, I am having an issue with OpenCV version 2.1, 2.0 on windows VS2008. I am attempting to open an uncompressed .avi video to grab frames from it. The VideoCapture class works to capture from an attached camera, and it compiles, making me think it is not a location/missing file …

Hey guys, Here's the problem I have: I am writing a server application in Java using the ServerSocket and Socket classes. I have an instance of ServerSocket which listens for connection and accepts them. The server runs a website that requires users to log in using an e-mail and a …

please help me with this.. (this s the function)- i don't know how to construct a code to test if array integer is empty using bool..pls help me.. (this s the function)- pls also include the main.. thanks bool isArrayIntEmpty(int *numbers)

I have a custom date class that is constructed in the following way: [CODE] date date_file("dates.txt"); [/CODE] I want to put this object into a new class as a private member, e.g [CODE] //the mem_data class======================================// class mem_data { public: mem_data(int,int,std::string); ~mem_data(); private: std::vector<reader> mem_store; int complete; date date_file; }; …

Hey guys, I'm want to retrieve results from the database, where datetime picker given value, is equal to database value. var _check = (from day in Check.tbl_employees where day.d_from== _frm && day.d_to == _to select new { day.desg_id, }).FirstOrDefault(); datetime picker gives a value with its time,but i'm only interested …

So.. I really don't know anything about modern databases at all. How can I learn to work with databases? Is it simple to create one? What should I do?

Obviously, it doesn't work. So what I'm trying to do (this is all very rough at the moment, merely an experiment/test to see if I can get it to work) is have a method under the player class that, when called, takes the value of the requested item, sees if …

Hello guys! :) I have problem finding out, about why the author if the code i have. Uses array like this: [CODE]int past[1000][2]; and says that 0 is side, and 1 is up.[/CODE] Does he mean that: [CODE]past[pastCounter][0]; is for up,and down (x) past[pastCounter][1]; is for sides (y)[/CODE] Appreciate all …

Hey Guys! Below is my code of Battleship game. I keep getting "Process terminated due to StackOverflowException." error. It keeps pointing to [CODE] char[,] Grid = new char[10, 10]; [/CODE] and i have no idea what it's asking to fix. Please help me. Thanks! [CODE] using System; using System.Collections.Generic; using …

Hi, I am having a problem with an assignment for a C++ course. I have to make a Game of Life simulator (predator and prey). There are two organisms, lion and ant, and the lions eat the ants. My problem is that for some reason I can't fathom, the lions …

OK I have a project due tonight at midnight and I know I should have posted sooner but it seemed like such simple things that I just knew I could do it on my own. I was wrong. I need your help. I have a program that essentially makes a …

So, I am working with some code I don't understand. Here is the file: [CODE=Python] import sys import os def change_ext(directory, old_ext, new_ext): for f in os.listdir(sys.argv[1]): base, ext = os.path.splitext(f) if ext[1:] == sys.argv[2]: os.rename(f, "%s.%s" % (base, sys.argv[3])) if __name__ == '__main__': if len(sys.argv) < 4: print "usage: …

I'm receiving the following errors when trying to read from a file: java.io.FileNotFoundException: rates.txt (The system cannot find the file specified) at java.io.FileInputStream.open(Native Method) at java.io.FileInputStream.<init>(FileInputStream.java:120) at java.util.Scanner.<init>(Scanner.java:636) at MortgageCalculator4.submitButtonActionPerformed(MortgageCalculator4.java:187) at MortgageCalculator4.access$000(MortgageCalculator4.java:20) at MortgageCalculator4$1.actionPerformed(MortgageCalculator4.java:70) at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995) at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318) at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387) at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242) at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236) at java.awt.Component.processMouseEvent(Component.java:6288) at javax.swing.JComponent.processMouseEvent(JComponent.java:3267) at java.awt.Component.processEvent(Component.java:6053) …

Is it possible to do any logic with gl lists, I am trying to make a wrapper class for them and I have this code in the compile function: [CODE] glNewList(model1,GL_COMPILE); glBegin(GL_TRIANGLES); int pos=0; for (int i=0; i<numcmds; i++) { if (cmdtype[i]=='v') { glVertex(cmdarg[pos++],cmdarg[pos++],cmdarg[pos++]); } else if (cmdtype[i]=='t') { glTexture(cmdarg[pos++],cmdarg[pos++]); …

hello! I need a program that validates the imput of dates. (Checks for leap years etc.) The user enters: mm/dd/yyyy The problem is, I have trouble with complex programs. I came up with this program, but i know it's too basic for what she wants. I need to have arrays …

hey there again, I am trying to build a small mechanism that lets me store product names and prices on a produktet.txt file. the file should hold lines as follows: product1 price1 product2 price2 . . productN priceN So, I built a small panel with three rows and one column. …

Hi We are high school students working on a final project for our course. We are making a top down shooter type game using pygame (its kind of like boxhead), and have made made all of our game except for the ai. We really need some help with this, so …

I have this code: [CODE]import csv from math import * distances=[] pos=0 tally=0 target_x=input("Please enter the X coordinate of the target city: ") target_y=input("Please enter the Y coordinate of the target city: ") count = sum(1 for row in csv.reader( open('cities.csv') ) ) cityname = csv.reader(open("cities.csv", "rb")) citynames = [] …

Hello, I have a list of strings. It contains strings with NAMES of my objects. This mean: [CODE]First f1 = new First(); Sec f2 = new Sec(); Third f3 = new Third();[/CODE] And my list contain: [CODE] List<string> smth = new List<string>(); First, Sec, Third[/CODE] How can I create object …

Hi Everyone, So I just finished writing a program from my Java class,except I can't figure out how to validate the bookID. "In the Book class, you need to provide a validate method that validate weather the book id is correct. The book id should be a [B]string[/B], which contains …

Hi. I want to try and control a Servo motor directly from a USB port. (without using an intermediate microcontroller). To do this, I need to send pulse width modulation signals on one (or more) wires of the USB cable. Is it possible to do this with python? (I found …

OK so I'm trying to parse simple URL's from a whole char chunk using strtok but always keeps giving me an unhandled exception error . SO here is all the code in C++ : [CODE] char* str = "(%/\%)google.com(%/\%)hotmail.com(%/\%)nananna.org(%/\%)" char *url[]; while(str != NULL){ url[0] = strtok(str, "(%/\%)"); if (DownloadFile_1(url[0],szPath) …

[CODE]int i, j; for(i=2;i<1000;i++){ for(j=2;i/j;j++){ if(!(i%j)) break; if(j>(i/j)) cout<<i<<" is prime\n"; } }[/CODE] Can somebody experienced clear me how this program actually finds prime numbers... The line with the last if condition confuses me most -> j > (i/j)

I have been recently working on a java project to just practice java and work on making programs for fun, but i came up upon this bug: When i use Thread.sleep on my java program, it doesent execute the line above the try-catch block where i have my Thread.sleep. heres …

Right now I only need to be able to send a 100kb JPEG photo. I tried Google and found a couple of things but their code only threw exceptions so maybe what they've done is not appropriate in my situation. This is an attempt at a remote screen viewer. If …

[CODE]// // CoordMatrix.h define the matrix stored in a coordinate format // #ifndef COORDMATRIX_H #define COORDMATRIX_H #include<vector> #include <assert.h> using namespace std; class CoordMatrix { private: // val strore the values in matrix; vector<double> val; // row is row index of value; vector<int> row; // col is colume index of …

How would I get a box to appear when I hover over a JLabel? The box is to explain what the label is. This is just a minor detail for the user-interface functionality of a game. So when a user hovers over a label, a box appears explaining it.

Hi Can someone please let me know which classes, objects, etc I should use into to convert an image file (.png, probably) to a printable string in Java? The image will be around 100px square and I presume I could scan 1px lines into arrays, etc? I'm hoping Java has …

Hi, I am new in C, trying to create a simple C file, that assign a value for a struct member with the type of string. I can't figure out why it said error : string.c:20: error: expected expression before ‘{’ token, but I don't find any syntax error.. [CODE] …

Hi! I'm trying to restrict my exe to only one at any time. I've used the following code: [CODE] var Mutex : THandle; Mutex := CreateMutex(nil,False,'MyMutexName'); [/CODE] I got the following error in CreateMutex: 'Invalid Number of Parameters". How to create a Mutex in Delphi?

I am gettig "could not find installable isam" while connecting to access 2007 databse the code that i wrote is: Public Sub MyConnection() constr = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:\Contact_management\Contact_DB.accdb;Jet oledb:database password=abcd" con = New OleDbConnection(constr) If con.State = ConnectionState.Open Then con.Close() End If con.Open() End Sub i installed office 2007 via network. …

I''ve got a struct like this: struct Node { int n; Node *left; Node *right; } I build up a binary tree from this struct. Now, how can i save the binary tree onto the hard disk, and how can i rebuild it from the hard disk ?

[CODE]#include<stdio.h> #include<conio.h> #include<stdlib.h> struct a{ char *c; int b; }t; int main() { scanf("%s %d",t.c,&t.b); printf("%s",t.c); getch(); return 0 ; }[/CODE] I guess there is some problem in receiving input (more precisely in t.c part). Further assistance will be appreciated.

int const & refToConst = i; // OK int & const constRef = i; // Error the "const" is redundant what is the difference between the two ..?

hi programmers!) Please help me understand this - as I understand from practice - the getting SIGALRM by process is ends the process - but I can't find the explanation of this guess. for exp. - I have code - [CODE]int main(void) { /* Установить будильник */ sleep(1); if((alarm(5)) > …

I [url=http://www.daniweb.com/software-development/python/threads/364777]recently discussed[/url] some problems I had had in getting PyODBC working with Django and Django-pyodbc, but at the time it was decided to switch to an ASP.NET solution instead. For various reasons, we are trying once again to set up Django and PyODBC, and while we've had some success, …

Evening, ive sucessfully managed to connect to a local copy of sqlserver via c# and input data into an existing database. Unfortunately im not too sure how to connect to the server and then create a database. Im assuming its possible?? If someone could point me in the right direct …

hi i have a drop down list where i select an employee id, once i click the button i want it to populate the Rate text box with the rate which matches the id from the table in sql. i have this so far but not sure if i have …

help me to understand the below highlighted: [B][COLOR="Red"]When the login program executes a shell, that [U]shell is uninitialized[/U]. When a shell is uninitialized, important parameters required by the shell to function correctly are not defined.[/COLOR][/B]The shell undergoes a phase called initialization to set up these parameters. This is usually a …

Guys, I have a problem here recently. I open my aspx and run.. for firefox it performs ok, no problem at all. But when I use internet explorer and process, it show an exception. ....is a physical path, virtual path is expected. any1 know what is the problem?

hi all.... i hav three scripts like 1)memory.py 2)channelmap.py 3)upload.py [B]i need to run only one script depending upon a selection(i.e,1)memory.py, 2)channelmap.py , 3)upload.py ) is there way to do this [/B] plzzzz help me

I've been scratching my head for quite some time with the following compilation error and I was hoping somebody could shed some light... I have the following in my header (.h) file: [CODE] //the mem_data class======================================// class mem_data : public reader, public date { //multiple inheritance public: mem_data(int,int,std::string); ~mem_data(); private: …

I was planning to start with a java speech program and went on with some research across the internet. I found that for any such program I need an API called the java Speech API. However when I wrote down import java.speech it showed no existence of any such API. …

I am currently working on a program where there is a requuirement that if the user removes a wifi modem & puts in another one, then the internet should get connected by detecting the new modem. Also the WPA key should be needed to be entered everytime. I am thinking …

Hi, When I view images on my development PC they look fine, but when I view them on other PC's, the images are sized differently and often get cut off. I've tested this on multiple PC's and the images always get cut off. I've attached the images from my PC …

hi , i have a table which have values like this : S11 S2 S9 S20 S11 0 0 2 0 S2 0 0 0 2 S9 2 0 0 2 S20 0 2 2 0 i want to compare columns and rows and assign color to S11,S2 , S9 …

[CODE] struct node{ int value; struct node *next; }; void rearrange(struct node *list) {struct node *p,*q; int temp; if(!list || !list->next)return p=list;q=list->next; if(q) { temp=p->value; p->value=q->value; q->value=temp; q=p?p->next:0; } } }[/CODE] list is containing the integers 1,2,3,4,5,6,7 then the output is? also what's the meaning of p=list(as per me its …

Hi... At some point I would like to create an operating system. I am quite familiar with C, and I know some basic assembly. Can anyone give me ideas of applications to create to learn more about OS Design. I would buy a book, but I don't have an extraordinary …