Software Development Forum

Hi All, I got this code from a forum & tried it on g++/Linux. In the code below i put NULL to a pointer variable but didnt get any errors. #include <iostream> using namespace std; class A { private: int _dmember; public: void func() { cout<<"Inside A!! "<<endl; cout<<_dmember; // …

I have just started trying to learn Java, and i am currently following a tutorial series on youtube([Java tutorial by Derek Banas](http://www.youtube.com/watch?v=rGlJiUO-dZA)) it seems like a good series so far! but i have been going along with him and typing it out, then afterwards replacing my copied code with his …

I have a listbox with items and a panel. What I want to do is when I click on an item, a label shows up in a panel, which was already there before the item was clicked. I've managed to show the label, but it didn't add to the panel, …

Can somebody please tell me what is wrong in here or what does this error message means : " error : reguest for member 'name' in 'person',which is of non-class type 'Person[2]' " struct Person{ int days; string name; }; const int size = 2; bool way_to_Sort(const Person &a, const …

Hi Team, Im reading Collections. It is mentioned that while intialising priority queue, it uses natural ordering by default. But my output is not like that. Below is my code and output. public class BackedCollections { public static void main(String[] args) { PriorityQueue<Integer> pq = new PriorityQueue<Integer>(); pq.offer(3); pq.offer(1); pq.offer(5); …

please anyone help, can anyone know how to search data in my form without any search button, i would like to search data once i automatically enter specific data in my form as a fast result, please?

Hello, I have looked at an example of `GridBagLayout` (JamesCherrill you must be thrilled : - )!!) and there are a few things that are not entirely clear to me. First here is the code taken from deitel and deitel “Java how to program”, chapter 25: // Fig. 25.21: GridBagFrame.java …

This is the problem I am working on ( you have likely seen it before) A bank charges $10 per month, plus the following check fees for a commercial checking account: $0.10 each for less than 20 checks $0.08 each for 20 through 39 checks $0.06 each for 40 through …

how can i paste result from excel formula to value or even store the result into a string below codes does not seem to works... For x = 2 To rowcount worksheet2.Range("B" & x).Value = worksheet2.Range("D" & x).Text worksheet2.Range("C" & x).Value = worksheet2.Range("E" & x).Text Next worksheet2.Range("C" & x).Value = …

Hi Team, I am working on Collections and in order to Sort ArrayList of Objects of a Class based on their instance variable, it is mentioned in book that I need to OverRide CompareTo Method. compareTo Method works fine but Iam not getting the clear idea of its sorting logic. …

I have a project which is running on client side.Now i have to do some modification in it.so i have to make patch file.what is patch file and how to make it.Can i make ocx,dll and exe in place of that.

I am using visual studio 2013. I am just a Beginner. Trying to make a shutdown Program in c++. its give the errors. 'Shutdown.exe' (Win32): Loaded 'C:\Windows\SysWOW64\ntdll.dll'. Cannot find or open the PDB file. 'Shutdown.exe' (Win32): Loaded 'C:\Windows\SysWOW64\kernel32.dll'. Cannot find or open the PDB file. 'Shutdown.exe' (Win32): Loaded 'C:\Windows\SysWOW64\KernelBase.dll'. Cannot …

odd mountain is a list of odd numbers going up from 1 and then back to 1. e.g. odd_mountain of size 5 is [1,3,5,3,1] odd_mountain of size 4 is [1,3,3,1] Hint: use the list functions and a builtin function. Can anyone help me in this? all my tries are going …

Hello! I have a exercise about matrices. here is the question: is given a square matrix [M] [N] which determines the amount of each column. Thank u!

What is the best way to implement a reusable usr confirmation? Basically so that I can embed it in other functions, so that the user will get to confirm if output is ok or whether they want to recall function or quit. So it seems it should be like. def …

I would like to do is to read CSV file begin to display to datagridview. show all the rows in the CSV but only the columns between START and END. This code below is for import all data from csv to datagridview. If OpenFileDialog1.ShowDialog(Me) = DialogResult.OK Then Try Dim fi …

I appologize if this has been answered elsewhere but the terms I search for do not turn up a good fit. I am new to everything I am trying to do here and need some direction to solve this problem. I have a string that is 'variable1=5&varible2=3&variable3=27&varible4=1' I need to …

I have a dir list box db.Close 'Kill (App.Path & "\PhoneTel.mdb") our = (Dir1.Path + "\" + File2.filename) mitt = Left$(File2.filename, 12) ' phonetel.mdb SourceFile1 = our ' DestinationFile1 = App.Path + "\" + mitt '"PhoneTel.mdb" FileCopy SourceFile1, DestinationFile1 as seen in the second image there is i will that …

Quick question, the answer is eluding me on the internet. Which is unusual. When we reference and call a sub/function from a class is it automatically started on a new thread or will it join the main thread? Cheers in advance.

** # i am tring to merge two array but every time its display first array proparly but in second array its only display last element....thx....# ** #include<stdio.h> #include<conio.h> void main() { int a[10],b[10],i,j,c,d,e; clrscr(); printf("how many number in first array="); scanf("%d",&c); printf("how many number in second array="); scanf("%d",&d); printf("\nenter …

Hello friends..please help me I have two identical Tables in my Database (Access) Table 1.Salup , Table 2.Salup1 . All the fields are identical My problem is:- I want to copy/append 1. All the records 2. selected Records agreeing certain criteria(eg."Sex=Male") From Table 1 to Table 2. through VB6 code.I …

i just want to ask, why we need to declare the header on the upper part of our syntax.

So here's my problem I have inner structure inside of client. How can I know while reading from txt file that I'm reading item data or client data for my list? struct item { char item_name[30]; char item_state[30]; float item_price; char item_status[30]; float item_price_if_not; struct item *next; }; struct client …

Hi I'm having a little trouble understanding C++ string arguments if that's what you call them. The below example illustrates. I'm not sure I understand what line 14 does. The vector 'myvector' is passed to myfunction (called on line 35. I'm assuming string w takes in the first value of …

I need to make one statement to select either of the items in listbox and show the same label, regardless of which item is selected. I've tried someting like If Me.ListBox1.SelectedItem = "R115" Or "Bay, Charles" Then Label1.Text = "Address Information Avaliable" End If But it doesn't work. The code …

I wrote this function I plan on using to load in .obj files from Blender into a DirectX application. The problem I'm having is that when when the model is loaded, it appears that every other triangle face is missing in a pattern, for every quad, only 1 traingle is …

Is software hackable no matter how perfect it is written? Let's say I will create simple OS, I will spend like 30 years on encrypting every single variable, every code string and insert quadrillions of hacking preventions. Let's say, that there are absolutely no leakings in code, variables, passwords. Is …

I need a python code that collects all even numbers separately, odd numbers separately and displaying into two separate totals. The range of numbers is 1-20 I am new to this language and I keep getting syntax errors, invalid statement errors etc.. So it would be great if you can …

can i have some advice for making a basic program, and can someone help me through python plz thx

Hello, I'm trying to approach .dll's. Tried some tutorials and got into 2 problems: 1. Using rundll32 from the command line is not working as expected. I write in cmd: "rundll32 mydll.dll MsgBox -32". It shows the MessageBox with text "15991798", changing every time I run it. 2. Calling a …

Hi, im developing a software in vb 2012 with a access 2010 local db, but for some reason i can´t remove records from the database. the following code breaks on line 6. i cant find the problem. the dataset is transmissoes and the the table is utilizador_avancado. can anyone help, …

Does anyone know where I can download Python source code for Graham's convex hull algorithm? C and C++ code seems to abound, but I need Python code, and specifically for Graham's method (not Jarvis or others). Thanks in advance.

hi, I have a Gridview like below:  What I want is: 1) User can click at **LINE** column, for example user click at **M23** and it will redirect to other page. 2) At the other page, it will display something like this: **Please insert countermeasure for M23** where …

I'm trying to run a binary sort that sorts through a list of randomly generated numbers, but for some reason isn't working. It will usually tell me if the highest or lowest numbers are in the array, but acts like a spaz on the middle ones. I keep fiddling with …

Hi all. What im trying to accomplish is to get strings from within a string. These strings are seperated with "//*//" an example would be String ExampleString = ("//*//helle//*//goodbye//*//1965//*//this is an example//*//the end"); then I would like to seperated into seperate strings. hello goodbye 1964 this is an example the …

What I am trying to do is delete the key value pairs out of a dictionary if the value is = 0. I seem not to be acheiving that so far. Python 2.7.5+ (default, Sep 19 2013, 13:48:49) [GCC 4.8.1] on linux2 Type "help", "copyright", "credits" or "license" for more …

I ve always had a problem with this but never coped with it. Let s say I bring a button to a form and click on it two times a event will appeaer in the code section. EXAMPLE: private void button1_Click(object sender, EventArgs e) { } Let s say i …

I am in the final stages of testing a text-based game I have been working on for several years but I am running into some major problems with my database access code and some very strange problems at that. What I am attempting to do is loop through a SQLite3 …

Hi,i have some error for some help when i try to run this code below i got this error "Syntax error in UPDATE statement." at .ExecuteNonQuery() and i try to solve it for an hours but i can't , Anyone please help me !! and i use System.Data.Oledb ( sorry …

Hi everybody. Hope you are all well in the new year. I'm having trouble with joining two chars and displaying the output. For example Any clues as to how to do this? Thanks so much. #include <iostream> #include <string> using namespace std; int main(); { char a = 'x'; char …

void John_is_3D(int dimx,int dimy,int dimz) { int ***John; // pointer to pointer to pointer John = new int**[dimx]; // array of pointers to pointers for(int x = 0;x<dimx;x++) { John[x] = new int*[dimy]; for(int y = 0;y<dimy;dimz++) { John[x][y] = new int[dimz]; for(int z = 0;z<dimz;z++) { John[x][y][z]= x*y*z; cout …

Hello Dear All, I have a small problem ,though seems very simple,being a newb It is difficult for me. Please Help me I have a message box VbYesNoCancel My code is here If ACRS.RecordCount>0 Then MsgBox"SALARY ALREADY CALCULATED DO YOU WANT TO RECALCULATE ?",vbYesNoCancel,"Pebble" Else CmbNdm.SetFocus End If My problem …

Hello, i have created a vb project and have publish it. There is no problem in running the vb.exe in my laptop but when, i try installing the vb.exe in my friends laptop the are error, error signiture (event type : clr20r3). I tried installing visual studio in my friends …

building my first cgi website, here is my problem. The code below works but when the condition is met it outputs both pages on the same screen however when the condition is not met it only outputs the Else: statement like its supposed too. I can't figure out why it …

I'm trying to make make project for my programming class. All that's left is deleting elements and editing elements. Basicaly my question is how would I do it for my inner list? Or how would I delete single client from list? Would I first have to free the client's inner …

HI, I am saving my form to word document. But the result, looks too simple. How do i insert table or insert image or maybe,could change the font style and so on??.. if you can give links or tutorials..anything that could help me..i would appreciate it so much. Thank you …

Hello good day. Here is my problem: I have retrieved some a couple sets of data from my sql database and saved them in ArrayLists of (custom)types <Student> and <Subject>. I am using a single Table. I want to create a custom AbstractDataModel that displays the data from the ArrayList<Student>. …

I have a question about the string.intersect method. I am not getting the results I expect. Dim lstChars1() As Char = "hello dolly" 'TextBox1.Text.ToCharArray Dim lstchars2() As Char = "help melanie" 'TextBox2.Text.ToCharArray Dim lst1 As New List(Of String) Dim lst2 As New List(Of String) For Each c In lstChars1 lst1.Add(c.ToString) …

hi, can you help me with my code? actually its running but the total price of products bought is not displaying, can you help me with this one? :( #include<stdio.h> #include<string.h> #include<conio.h> int main(void) { int pno, choice, product, jf=12,d=10,l=107,c=2,cf=22,n=9,b=19,ap,a,total,disc,i,ctr,nSelection; char name[50]; char cname[50]; char y; char x; float price,qty,tax,dis,bill,dprice,ttotal; …

write a programe to input any year and cheak whether it is leap or not