Software Development Forum

ok so im making a windows forms application in microsoft visual C# 2010. this is how i got it to change form: [CODE]page_2 page2 = new page_2(); page2.Visible = true; this.Visible = false; page2.SetDesktopLocation(50, 50);[/CODE] the form its on is page_1 and its going to page_2. this works fine, the …

hello, I'm almost done it, but I'm lost in the huge forest of c++... so, here's my code: [CODE]#include <iostream> #include <fstream> #include <time.h> #include <stdio.h> using namespace std; int gettime() { time_t rawtime; struct tm * timeinfo; time ( &rawtime ); timeinfo = localtime ( &rawtime ); } int …

I have a nested class declared as: [CODE]class A { class B { // members }; // members }; [/CODE] Is there a good way to avoid typing A::B every time I need to access B's members? I'd just like to do this in one .cpp file. I tried "using …

[B]In main.cpp[/B] [CODE]#include <iostream> #include "init.h" using namespace std; Initialization Init; int main() { Init.test(); return 0; } [/CODE] [B]In init.cpp[/B] [CODE]#include <iostream> using namespace std; class Initialization { public: void test() { for(int i=0; i<10; i++) { cout<<i; } } };[/CODE] [B]In init.h[/B] [CODE]#ifndef INIT_H_ #define INIT_H_ class Initialization …

I'm having another crack at python - and I am enjoying the clean simple syntax - but one thing I couldn't work out was how to read a line from a file until a '\t' character. How could I do this? It is a phone-book program and the data is …

Hello I'm currently having a few problems with trying to read some data into an array and then workout the averages of all the data. I can read in all the data into an array line by line, the problem is I need to work out the averages of the …

Form 1 contains label1 and buttonOk (form1 NOT closed) on buttonOk click the opens Form 2 Form 2 contiant a numericupdown and button1 on button1 click value of numericupdown should be displayed in label1 i tried to do this using the constructor and did not work.. help pls

I am in d form1 code and i would like to initialize d current.. form1 frm = .... help pls how can i do so?

I'm looking for any thoughts on how I am currently doing error handling in my VB.NET programs. Basically I put code in a try/catch, then call an error handling sub passing the exception and a string. The error handling sub gives an error message and writes to a text file: …

Dear experts in Python, I have written a binary search method that receives a list of float and one new float item. It needs to look for the proper index for that item to be placed and return that index. To make it simple, I give an example: imagine a …

I have the following error on line 71 and I'm not sure whats wrong with that statment any explanation would be greatly appreciated. C:\Users\peter\Desktop\CSC 111\welch_lab4\welch_lab4.java:71: cannot find symbol symbol : method equalsIgnorCase(java.lang.String) location: class java.lang.String while (!(response.equalsIgnorCase(FLAG))) ^ 1 error Tool completed with exit code 1 This is the details …

I feel guilty about posting again but I need help again and I have tried other sources of help e.g google and asking someone who is familiar with vb.net but still can't find the solution to it. It must be another simple fix but I cant find any reference to …

Hi, I want to build new Gui program for calculator. I did it in c# using MS visual c# 20100 express. Now I want to do it in java. I used jGRASP till now. Does jGRASP has any feature like visual studio to add buttons or something like that? or …

char* p=(char*)malloc(10); in the above state ment,has the memory been initialised??...what is the difference between allocatingg it and initialising it?? thanks in avdance...

I am quite sure I am gonna feel real dumb when I found where I am screwing up but I am ALMOST done with a fraction calculator (part of a complete algebraic calculator I am making) and am stuck when trying to reduce my fraction because when I hit the …

[CODE] I am a novice programmer and need help..... #include <stdio.h> int main (void) } int n1=2; int n2=0; n2= (++n1) + (++n1); printf("Result= %d",n2); return 0; } Result= 8 How is this possible?? Similarly, #include <stdio.h> int main (void) } int n1=2; int n2=0; n2= (++n1) + (++n1) + …

Hi, sorry my title isn't very explanatory. What I need to do is to access a variable from a main function, in another function without using a parameter to do so. Based on the nature of the problem you might see why I would do this. (if there is a …

[CODE] #include <iostream> #include <cstring> using namespace std; class CD { public : void getCDdetails(CD *); void printCDD(CD *) const; int putCount() const { return count; } private : static int count; char Title[60]; char Artist[60]; char Type; int Tracks; }; int CD :: count=0; void CD :: getCDdetails(CD * …

Hi! I'm getting this error that says that I need another '}'... The problem is that I have all of the needed ones The error report is: "Syntax error, insert "}" to complete ClassBody"

I return 30 tables or so from sql in a stored procedure. In the stored procedure I select these tables via... [CODE]select * from myTable1 select * from myTable2 select * from myTable3[/CODE] etc. These tables lose their sql table name when returned in a dataset and have default names …

I have several questions regarding OS programming. 1 - How do they write Operating systems? 2 - Do you know what compilers is used to do that (or library)? 3 - Do they have to burn it to a CD and reboot the computer every time they test it? 4 …

OK, i made a listView and a ComboBox now i want that when ever i choose an item from the comboBox the listView will show only the items that there's subItem have the same text of the ComboBoxItem this is what i made so far, but i succeeded to do …

Hi All I have a query about Numpy randn() function to generate random samples from standard normal distribution. I want to add some random samples using this function to my data and I want these samples must be in a range of 1 and -1. I using this function y …

Question on getting my class to work with a project I am working on oldY = changeY1(pos1[0]); I call the changeY1 function in my main and am setting a int = to the value returned,I am declaring this function in a seperate class of its own : [CODE] #ifndef INTERVAL_H …

i'm making a quick class that has some getters and setters. i'm getting an error at line 46 when i try and create my setItemNumber function. Im also getting an unexpected EOF error but i think that it might have to do with my first error. this is my code.... …

Making a Game for a school project and Im using a 2D array to make the gameboard. Well in the begginning of the game the user has to input what the current game board looks like. I have it so the user is entering data and the data is being …

I am starting to feel completely dumb when it comes to VB.Net coding. I am using Visual Studio 2010 and am trying to compare the numbers in 2 listboxes. If an item from list A matches an item from list B, I want it to add that item to List …

Hello all,quick question. I have to (not my option,has to be that way) make an array with huge length, definitely more than 100.000 ,maybe 1 million. But if i use a non-integer position counter (don't know the english word for it, like myArray[i] and i is not integer) i get …

I've created a function which creates a new password. But I want a function to store it in a text file from which it will be called when the program is started. Also how do I make an edit or delete password function? As the password will have to be …

TEX] I have this code but can not get it to display the numbers the way i want. I want the display 1 21 . . . n-2)......1 (n-1).......1 n (n-1)... 21 My code is[/TEX] [CODE]public class print{ public static void parttens() { int w=4,t=0; int k = 1; int[]array=new …

I am making a game bot which does certain function for a certain ammount of time. I want to give the user an option to shutdown when it all ends. What functions are out there to do that? Can I do it with <windows.h>?

Hello Firstly - sorry to Mitja and kimbokasteniv who replied to this question a few days ago. I know your answers are correct, and I thought I understood but I don't. Or at least I don't know how to apply what you have said. My fault. Both my brain and …

Hello, I'm new to c++ and i'm making program to read from numbers from file and calculate average. The numbers in file is like this [CODE]10; 15; 200[/CODE] and my source so far [CODE] #include <iostream> #include <fstream> #include <string> using namespace std; int main () { string line; ifstream …

This works with Python 2.7 [code]class B: def __init__(self, arg): print(arg) class C(B): def __init___(self, arg): super(C, self).__init__(arg) c = C('abc') # abc [/code]Here super() gives a TypeError: must be type, not classobj [code]from math import pi class Circle: """with Python3 object is inherited automagically""" def __init__(self, r): self.r = …

I've been working on this for quite a while. Everything works except for writing and reading my Vector<Question> questionList to and from my binary file. The file is created as it should be and the rest of the program works ok, but I'm not sure what I'm doing wrong with …

I'm trying to get sounds to play from python. I've tried Winsound, snack, and now Pygame. Winsound only seemed to play windows preset sounds (which aren't so useful), snack did nothing, and Pygame is raising a memory error on a 2 second mp3. Is there something obvious I missed in …

hai friends, Am developing java project with client server interaction, am getting the Exception in thread "RMI TCP Connection(idle)" java.lang.OutOfMemoryError: Java heap space Exception, i doknow how to solve this ,please help me in this.

[ICODE] Private Sub cmdAddCart_Click() Module1.toConnectProc Set globRSRecordset2 = New ADODB.Recordset globRSRecordset2.Open "SELECT * FROM tblBooks, tblTemporary WHERE tblBooks.Title = '" & Trim(Me.txtTitle) & "'", strVar, adOpenKeyset, adLockOptimistic With globRSRecordset2 .AddNew tblBooks.ISBN = tblTemporary.ISBN tblTemporary.UserID = ID !DateReserve = Date !Notes = "Fair" MsgBox "Added to Cart", vbInformation, "Add to Cart" …

Hi... I have a fixed size array in my program..... but in order to make the program memory efficient.... i want to make it an ArrayList... can someone please explain how to do this..... i have posted my code below... [CODE] class StaticColumn { public TextBox[] textBoxes = new TextBox[1000]; …

I am converting seconds to minutes, hours, days. For some reason I have an issue with the days not calculating when running the program. The 'if' statement seems completely ignored by the program. I think this may be caused by the warning I get. Any help would be greatly appreciated …

I have this error --------------------Configuration: <Default>-------------------- Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException at java.awt.Container.addImpl(Container.java:1041) at java.awt.Container.add(Container.java:959) at javax.swing.JFrame.addImpl(JFrame.java:540) at java.awt.Container.add(Container.java:365) at ticketReservation.<init>(ticketReservation.java:114) at bookAngels.actionPerformed(bookAngels.java:163) 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:6267) at javax.swing.JComponent.processMouseEvent(JComponent.java:3267) at java.awt.Component.processEvent(Component.java:6032) at java.awt.Container.processEvent(Container.java:2041) at java.awt.Component.dispatchEventImpl(Component.java:4630) at java.awt.Container.dispatchEventImpl(Container.java:2099) at java.awt.Component.dispatchEvent(Component.java:4460) at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4577) at …

Hi All, I try to make count down timer but. This following is my code but it just decrease one time and stop. [CODE]Dim TCount As Integer Private Sub Form_Load() TCount = 30 Label1.Caption = "30" End Sub Private Sub Timer1_Timer() Label1.Caption = TCount - 1 If TCount = 0 …

Well, i really don't know, maybe the title would be in appropriate. Here's my problem: Textbox1.text = [CODE]abcd sadsadasdas dsad as das d 1234[/CODE] After parsing between [TEX]abc[/TEX] and [TEX]1234[/TEX] It shows [TEX]sadsadasdasdsadasdasd[/TEX] However it should also contain spaces. Here's my piece of code: [CODE] Dim daniweb As String = …

I am writing a program that accepts an input file of 10 items each having revenue across 4 quarters. In this particular function I have to determine if the items profit has steadily increased, decreased or went up and down across the 4 columns, or quarters(qu) as they are referenced …

I'm working on a map editor and the tiles show up i a file as [CODE]1, 0, 0, 1, 1, 0, 1, 1[/CODE] so here's a 4x2 map. I'm wondering how can I parse out the integers from the commas and assign them to a multidimensional array so that \i …

First, yes this is a school project. That said, I have a seed, now I need to create a function that will create a byte array of random bits. The input for the function should be the number of requested random bits. Here's an example: [CODE]unsigned char* getRandomBits (int number);[/CODE] …

Is there a way to gather network/internet traffic statistics? The end result is that I need to create a random number generator using some network stats as a random seed, so I need to pull information that is highly variable. Could be packet data (maybe sequence numbers), or traffic data …

I am looking for the correct way to initialize an array data member and why the following code produces the listed error. Thanks... [code] typedef struct tagsX { tagsX(int u, int v): a(u), b(v) {} int a ; int b ; } sX ; typedef struct tagsY { tagsY(sX *p, …

hey there, I downloaded the jxbrowser package that comes in the following folder jxbrowser-2.8-cross-desktop-win_mac_linux . I put it on a directory JavaBrowser on my desktop. I tried writing a java class that makes use of the package but my compiler complains for absence of the package. anyways, after reading the …

Hye guys...im trying to create ScrollBar Horizontal on whole frame, i keep trying and do some research but still fail...Please help me...What should i add. This is the code. [CODE]import javax.swing.*; import java.awt.*; import java.awt.event.*; public class listOfMovies extends JFrame implements ActionListener { private JButton jbtBatman, jbtAngels, jbtFaster, jbtDueDate, jbtHuman, …