Software Development Forum

I'm getting a few error codes on this part of my lab. I showed it to another colleague and he said that it should work as written. Maybe one of you can see the error that I'm missing. I'd love to be done with it and get it turned in. …

I'm trying to input numbers in a binary tree with an array of random integers. But all I get is two numbers, and they are always the same! From the main: [CODE] const int length= 10; // This is used several places, hence the const int array[length]; // One of …

hey guys, i have a little problem i have got a method that removes the line of text in a file. for example if i specify a name and the name is on one of the lines in the file.txt it would remove it. what i want is that once …

I need to create a large integer array but I am not able to increase its size beyond max int value. How do I create larger arrays?

Hi! I'm trying to create String array from ArrayList. This task seems to be trivial, however I have a problem because of using "interface". The code and error message are shown below. Please, give me some advices to solve this problem. Thanks! [CODE]public class Class1 { public List<myInterface> getAllTasks() { …

I get a Segmentation fault error and I cant find what's wrong with the program. programs fails when it tries to execute this line "delete [] this->courseList" in operator = overloading function. [CODE=c] #include <iostream> #include <string> using namespace std; class Student{ private: //A string that stores the name of …

Hi! Does somebody know how to get the total number of MenuItems in JPopupMenu? I'm searching for something like, popupmenu1.getNumberOfMenuItems(). I need it for the FOR statement [CODE](for int i=0; i<popupmenu1.getNumberOfMenuItems(); i++) { ... } [/CODE] Thanks!

I need to write a program that generates a magic square of an odd number between 3 and 15. I have written out this much code, and when i type in 3 for the number it gives me the correct square. but any other odd number it gives me an …

Hi! Could someone please tell me how can I create an obejct of the Class1 shown below? Let's say I want initialize the List of subjects. I try the following code, but it doesn't work: [CODE] List<ClassInterface> myInterface; myInterface = Class1.getAllSubjects();[/CODE] Thanks! [CODE]public class Class1 { public List<ClassInteface> getAllSubjects() { …

Hello; I would like to compress an 1D array of arbitrary number of elements. For instance if a user inputs IN : 111122233331 OUT: 14233411 [it shrinks/increases the array and replaces all the identical consecutive elements with a number of how many times theyve appeared.] This task must be accomplished …

Hi! My question is about JFormDesigner plugin for Eclipse. So, I opened JFormDesigner in Eclipse, added the ActionListener to the JButton and defined a procedure to be runned after pressing this JButton. Then I pressed "Build All" and runned the form (*.jfd file) from Eclipse. However, it seems that the …

Hello friends)) How to create a dynamic array in C#? Does anyone know?

Hello all, I'm having trouble with making a 2d vector array class. Would anyone have time to help with a couple of questions? I think my problem is with overloading (). I notice that this: [CODE]template <typename T> T& Array2d<T>::operator() ( int x, int y) { if( x >= rows …

#include <iostream> #include <cmath> using namespace std; int main () { int numMonths; double balance; double numBalance; float rate; double totDeposited = 0.0 ; double totWithdrawn = 0.0 ; double mthlyInterRate = 0.0; double totInterest = 0.0; cout << " Enter the initial balance ===> "; cin >> balance; cout …

'A way to connect to SQL with VB.Net using Classes 'This must be a class on its own Imports System Imports System.IO Imports System.Data Imports System.Data.SqlClient Imports System.Web Public Class frmConn Public Shared Function ConnSQL() As SqlConnection Dim connectionString As String Dim cnn As SqlConnection connectionString = "Data Source=.\SQLEXPRESS;AttachDbFilename=|DataDirectory|\App_Data\test_db.mdf;Integrated Security=True;Connect …

Hi all, I'm actually equating a 2D array from a class to another class. I call it using method call. However, it seems like the 2D array is empty after I equate it to another 2D array in another class. May I know where is the problem? [CODE]import java.io.*; import …

Hi I am new to C. I'm taking an operating systems class right now and I have a project that requires me to create a set of semaphores. The command line takes in: filename ropt NS value1 value2 value3...valueNS Where argv0 is the filename Argv1 is the option to remove …

Hi, I'm writing a large program but require Multithreading for this software. I've searched the web for just over an hour and now is just after midnight but still can't find anything simple. The only thing I saw that came close to what I need was at [URL="http://www.computersciencelab.com/MultithreadingTut1.htm"]http://www.computersciencelab.com/MultithreadingTut1.htm[/URL] but I …

Hello I hava a question regarding assembly. How could I take a number from register and find out how many hundreds, tens and ones it has. For example a number 412 has 4 hundreds 1 dozens i 2ones. Ive tried with looping a sub with a BRMI branch, but the …

I need to know how can I make trial(demo) version of my program. Normally people use date & time to do it. But if user will change his system date I guess it will not work. I need to know the best way of making trial version which will work …

I am finally learning about fstream but Im stomped with this problem that I have. I have a current file that I am opening. Each line of said file looks like this: D40001~10997~811~DANIWEB~555-555-5555~7.70~I~2111 There are around 5000 lines with different DXXXXX numbers. I want the user to input a dnumber …

Hi, I have a WPF program written in C# that updates an Xml file from a textbox when a submit button is clicked. The code works as I can tell that the xml file is updated after the execution of the program, however I would like the update in real …

Hello, i needed suggestions regarding the book "Art of Computer Programming" by Donald E Knuth. im an undergraduate Computer Science student. i would like to know more about the book before i buy it. So, any reviews? Reviews as to how the Math in it is(i heard there are a …

I have a program that lets me enter participants in a race, their startingnumber, their start time and end time. The program then tell me who won the race and the winning time. This is my program: [CODE] #include <iostream> using namespace std; int main () { int start_Nr, start_Hour, …

Okay so I have a program that takes in up to 25 students and information for each including 5 test scores. All of that is done and working fine. What I am trying to do now is calculate the averages of each test 1-5 and then the total average of …

I have several textboxes that are in tabs and would like them all to auto-scroll when text is added [B]without[/B] bringing them to focus. Is this possible?

I need a small tool to print a record layout with a row of data to proof the layout and data match. To that end, I am using a CSV to pick up a record, and a list to store the field names. What I want to do is to …

I've managed to put together some code to retrieve data from a sql file. I plan to connect to a sql server that are operated by a database program, that update the registry every 10 sec. Before I try to connect my program to the sql database, I need to …

Hey there, all. I just complied a program in C++ on Microsoft Windows 7 Ultimate (MinGW). The only problem is that when I run it a command prompt also runs with it in the background, and can't figure out how to remove it. Any ideas?

I wrote a little program a while back that changes windows a lot and I was wondering if there is a way to have one window open at the same spot the last window closed?

figured it out

I've got to write a program where it replaces a letter with a dash and then asks the user to enter the letter that should be their. I've written a program and It works the first time around and then prints out two lines. Where have I gone wrong ?? …

Hello Friends I want to pass a Double Dimension Array to a Function using Pointers... Right Now i am doing this.. [CODE] # include <stdio.h> void show(int *,int,int); int main() { int a[3][3]={1,2,3, 4,5,6, 7,8,9}; show(a[0],3,3); return(0); } void show(int *p,int row,int col) { int i,j; printf("\n\n\n"); for(i=0;i<row;i++) { for(j=0;j<col;j++) …

Hello) Please tell me-how to set up automatic numbering of lines in Visual C# Express Edition (or maybe this feature is not there?) Thank you in advance)

Hello! Here's the problem: After making some GUI application (NetBeans) in output directory (containing generated .jar file) also appeared a directory 'lib' with additional .jar. This jar is some extra library with classes, which path is added in manifest ("Class-Path: lib/bla.jar"). So I've used to pack my applications always intto …

Hi all!!! I have some problems with List comprehension in Python. How can I obtain these two nested list using comprehension? list1 = [[1,2,3],[4,5,6],[7,8,9]] list2 = [[1,0,0],[0,1,0],[0,0,1]] (identity matrix) where list1 and list2 are square matrix of 'n' size thank you in advance!!!

Hi guys, I'm trying to learn the principles of artificial intelligence. I just finished coding up a belief net and a corresponding EM algorithm that learns the CPTs for latent nodes using training data (if you're unfamiliar with the lingo, you're probably going :eek: right now). While the program (written …

I want to make an user defined STACK.But I have some problems with this following code. Please find what is worng. [CODE] #include <iostream> #include <conio.h> using namespace std; #define MAX 10 class stack { private: int arr[MAX]; int top; public: stack() { top=-1; } int m; void input() { …

Hi, As part of porting a (mostly C++) library[1] to a "new" operating system[2], I'm trying to link the library's semaphore class to the platform's semaphore implementation. The problem is that the library assumes that the semaphore implementation will be a modern POSIX one[3] but the operating system's semaphores are …

Please give Free download links of Latest and Best C/C++ Compilers for Windows...

Hi Does any buddy help me to convert char* to std::wstring

I need some help. I have a detailsview and it has several different fields in it. The fields I am having a problem with it the dropdownlist. I have two dropdownlist, one that is dependent on the other. That works fine. But now when I try to insert the selected …

I am using Visual C# When i open file from my database then an image is loaded in my program,and image source is given below [B][COLOR="Red"]map.Source = new BitmapImage(new Uri(filePath)); [/COLOR][/B]/// filepath is address of image from datebase and when replace it by another image. The new image is loaded …

I wrote this string palindrome program that reads input from a text file. All the syntax are correct but I have an error I couldn't understand. Any help is appreciated, thanks!!! First, this is the error message: [B]Error 1 error LNK2001: unresolved external symbol "char * newToCheck" (?newToCheck@@3PADA)[/B] And this... …

question about pointer and array. can we add a 2-D array (**A) with a 1-D array (*B)? both of the array is define as a pointer in the program. where array A is A[i][j] and B is B[i] new in C programming and pointer is difficult.... :-|

Can anyone pls suggest if there exist a java IDE that has drag and drop functionality in creating GUI's?? Much like the VB.NEt IDE's. Thanks (",)

Please can you tell me where I've gone wrong !!! thanks Sam [CODE]#include<stdio.h> #include<stdlib.h> #include<ctype.h> #include<string.h> int main() { char array[80]; // input array int i=0; // loop counter 1 int vo=0; // vowels int co=0; // consonents int ot=0; // other characters printf("please enter string\n"); fflush(stdin); gets(array); while(i!=80) { …

Hello, I am trying to read two floats from a file written in its first line using the below code but after compiling I always get "wrong dimnesions" coulp please help me in that problem. Thanks in advance. [CODE]#include <stdio.h> #include <stdlib.h> #include <math.h> #include <ctype.h> int main() { float …

i am trying to connect to an MS Access database but i am new to C#. I have looked at, amongst others, Paladin's response to dark omen about connecting to a database and since i have connected to a database before in Visual Basic most of it makes sense to …

What is the function of "cin.get()" and "cin.ignore()".