Software Development Forum

hi all, f1 =['0.2' , '0.4','0.0'] f2 =['0.1','0.2','0.1'] f = f1 - f2 i need a output like f = [0.1,0.2,-0.1] but wen i run this program it is showing error like [B]TypeError: unsupported operand type(s) for -: 'list' and 'list' [/B] thanks in advance.........

Hi everyone, I am new to C++ and I'm having difficulty getting this program to work to calculate Haistone numbers. So please - any advice or solution as to what I'm doing wrong would be greatly appreciated. The program is to take two numbers, and then for each number in …

Hey everyone, My problem is that in my program below I made an indefinite loop for comparing strings and values, my problem is on line 60 & 61, the loop automatically accepts whichever if statement is on line 60 when I test for an uppercase and lowercase char, as soon …

i have a (check style)list box which have some items.i want to remove more than one items which are selected(checked) . this removing event is done by clicking on command button. but it gives error of "invalid property array index" plz help me to correct this error.... [B]this my coding.....>>>[/B] …

Hi all, I'm mostly into my Java so I'm not even sure if I gave the post a proper heading. Basically I'm trying to read two matrices from the command line and print them out. Reading works as far as I can tell but when my program tries to call …

I'm having a problem with user control.. how can i disable from the panel the user control if another user control is selected from menustrip??? here is my code at the moment [CODE] Private Sub LabToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles LabToolStripMenuItem.Click If LabToolStripMenuItem.Enabled = True Then …

So, in the course of a numerical simulation I have noticed that if I save and load the state of my system (a large number of doubles), the following behavior of the system will be slightly different from if I just kept the info "inside the program" and didn't bother …

Hi guys pls help me with my problem this is for my update code [CODE]Private Sub BtnUpdate_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles BtnUpdate.Click Dim StrSQL As String = "updatePatient" classLibrary = New ConnectionLibrary classLibrary.openConnection(strConnection) 'label1.text = databasestatus If Not classLibrary.isConnectionOpen() Then Exit Sub End If classLibrary.initializeCommand(StrSQL) classLibrary.addParameter("@IPD_ID", …

I have this string function that should calculate the average of and array compare the values of the 12 numbers and output which month has the highest temperature -(0-11) = (Jan-Dec) -all variables not defined in the function are defined globally The problem is when I compile and run the …

Hi All, I really need some help. I have been asked to write a search screen for a rooms booking application. I have kept the design nice and simple so all the user has to do is enter the dates they want to book a room for and the results …

Hi all, I have begun workin on getting c++ to do physics and things for me so im working on some maths functions. starting small and working up, Just did this one on prime number generation and was wondering if anyone can point out any ways it could be ,made …

CAN ANYBODY HELP ME............. see i've created a label and a pictureBox..............in the below code when i press the key "A" the count begins which is been displayed in the label........and also during when pressing ("A"), the picture "RedSlideButton.png" is displayed within the pictureBox , and on releasing ("A") the …

Hi Everyone, I am trying to compile a code and I keep getting error C2064: term does not evaluate to a function taking 1 arguments here is my code(actually I got it from a book),can anyone help me what is wrong? thanks Negin #include <iostream> #include <math.h> using namespace std; …

Hi guys, I'm sure that the answer to this is simple, but I don't know what it is and it's bugging me. For reasons that aren't important, I'm trying to make a kind of light-ish weight array class. I want to be able to use syntax like that of [icode]std::vector[/icode] …

1. Do we have static classes in C++? 2. If so what are they useful for? 3. Is this the name given to classes that should not be allowed instantiation? 4. If so, how is it different from abstract classes?

Guys forgive me if this topic is belongs to database forum, i don't have a clue if this topic is for database or vb.. Guys can you give me some idea on how will i link my login accounts that are stored in the database on their own profile forms(vb) …

can anyone help me............... in the attachment i've made textfield and a button.........in that on pressing "A" the count begins which is been displayed in the label..........but the speed of the counting is very fast when pressed down without releasing......can anyone tell me how to reduce the speed of the …

[CODE]class MOrders { int nooforders; // Data members of the class public int getorder() { nooforders = 500; } public void displayorders() { System.out.println("The number of orders to be delivered: "+ nooforders); } public static void main(String args[]) { MOrders obj = new MOrders (); obj.getorder(); obj.displayorders(); }[/CODE] getting a …

I'm trying to make an array-based queue that inserts and removes the elements... The default array is {0,0,0,9,10}. after the 0's are filled up it should say that its Full and will return to the loop. I'm having trouble making 3 particular methods which is dequeue, isEmpty, and isFull.. [CODE]class …

Hi, I have a for loop something like: [CODE]for n in range(no_of_rows): #--configuring ODU Op mode odu_op_mod=list1[n] odu_op_mode= odu_enum["%s"%odu_op_mod] if (odu_op_mod == 'blahblah'): #------------ elif(odu_op_mod == 'aaa'): #-------- elif(odu_op_mode =='xxx'): #----- elif(odu_op_mod == 'yyy'): #------------------- elif(odu_op_mod == 'zzz'): #------------- logging.info("*******************************************************************") subprocess.call(['python link_config_idu12.py %s'%addr],shell=True) [/CODE] I have different lists, list1 #for …

This code is part of this program I'm doing. I've edited it so it would get shorter. [code] #include<stdio.h> #include<string.h> main() { char zero[5][6] = {"|||||", "| |", "| |", "| |" , "|||||"}; char secOnes[5][6]; strcpy(secOnes,zero); y=10; for(i=0;i<5;i++){ gotoxy(20,y++); printf("%s", secOnes[i]); } getch(); } [/code] When I try to …

Hi peoples, Suppose I have an XML file [CODE] <Application> <Segment1> <ID>Sam</ID> <Fee>2.50</Fee> <Fee>1.00</Fee> </Segment1> </Application> [/CODE] In a nutshell, I want to move the two <Fee> Elements to another section so it looks like this; [CODE] <Application> <Segment1> <ID>Sam</ID> </Segment1> <Segment2> <Fee>2.50</Fee> <Fee>1.00</Fee> </Segment2> </Application> [/CODE] It would invlove …

Hello all, My understanding is that the Objects created are stored in the heap segment. What if the objects are created for a class with static data members? Do the static data alone reside in the data segment, while the rest of the members are allocated on the heap? I …

I made my IO exception and everything to copy a file to an existing spot and then overwrite it. I programmed the IO fine, but I get the error saying 'File in use' [CODE] 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; …

Hi, Just started using python. I can run simple python programs from the terminal in OS X. It says python version 2.6.1. I wanted to try turtle. I copied some code I found from others on here and tried to run it, and ran into problems right away with things …

I was humming along, and decided to try out data sorting. So, I did a few pieces of research, and came up with a really cool looking algorithm: Quicksort. I did what I should have, and started to program. Now, here is where I sound like an idiot: Why is …

I am trying to make an ATM machine, while trying to teach myself how classes interact with each other. I feel as though the main idea of the program is correct, but as you can see, I am having a lot of syntax errors. If you guys see something that …

I'm currently using a combo box to select one of many alternatives. From 5 alternatives only 1 works, when i click on any other it gives me the following error: "Cannot bind to the property or column 'xyz' on the DataSource.Parameter name: dataMember" Why is this error caused? What are …

Datagrid Adding Columns this is a really silly question, but i seriously dont know how to do it. How do i add a new column to a datagrid. It starts off with two, and all i want to do is add two more columns to it. why am i finding …

Hi. I'm making an interface and a class that correlates with the client code below. Everytime I try to compile the client code, I get the following errors: [quote] Bird.java:15: = expected private Color col; ^ Bird.java:16: = expected private Point pos; [/quote] As well as a few others. For …

I have an assignment to show a brute force algorithm on combination and permutations. All I am given is the function headers, and I cannot see the main. I'm having trouble understanding how sets work... Here is my header function for combination [code=c++]set< set<char> > powerSet(set<char S>)[/code] now, I'm not …

i know nothing about programming but started learning python yesterday, and have learned some basic things. my dad is a programmer and challenged me to write a program that would be like '20 Questions'. i started it using the few things i know, and i think the way i started …

Hey guys, im doing a rock paper scissors program for h/w i got it done but im getting an error and i cant figure out whats wrong. [code] public static void main(String[] args) { int pcpick; int userpick; String userChoice = JOptionPane.showInputDialog("1 Rock, 2 Paper, 3 Scissors"); int choice = …

Hello, Once more, I'm having a problem which I've been breaking my head about for a few hours searching Google to no avail, and came here again for some consult about. The thing is this; I have an image file, the size of 16x16 pixels, and I want to paint …

Hi all, I cannot seem to grasp the use of wrapper classes, or rather how to use them. I am in the middle of practicing for an exam tommorrow but I am a little stumped with the following task: [I]Create an overloaded setValue method that recieves a String parameter. This …

I have a Datagridview in C# windows Application In it i have one ComboBoxColumn out of 12 datagridview columns Now I want to disable/enable cells of particular row on ComboBoxColumns selected index chaged event according to Condition. Not Gridview's whole column should enable/disable, I want Cells of particular selected Row …

Hi All, I want to add some admin privaliges to my program, its simple enough, when the user is logged in as admin certain buttons are enabled, when the user is logged in as anyone else, these buttons are disabled. Please see my code below [CODE] Private Sub MRMMain_Load(ByVal sender …

Hello friends kindly help me, Which is purely object oriented language Java or c++? If it is java why it is? how it is? If it is c++ why it is? how it is? Kindly help me...........

I have been told by a number of people to use xpath instead of regex for some of my regex searches. What advantages does xpath provide over regex? I can't find a webpage that says that. Been through over 10 pages of search so far.

I do not know if I should use a 2D or just two seperate arrays to make this easier. I have two arrays. One is just an array like {1,2,3,4...n} and the other has values that correspond to those and make pairs. I want to create an array that stores …

Hi I've got a strange problem that i'm going to explain but before, here is my code: /!\ This is not my finished application /!\ [CODE]#include <windows.h> #include <stdlib.h> #include <stdio.h> #include <string.h> #include <conio.h> struct Date { short Jour; short Mois; short Annee; }; struct Ouvriers { char Genre; …

hi, i need help on calendar picker.i placed a calendar control on a form.once i click on any date,i want the date value to be inserted into fields in database.i tried searching for the codes bt what i got was a manually designed calendar by a programmer.is it possible to …

Hi I posted this on another thread but messed up the title (called it y2exe) and I want to make sure this gets found if someone can help. I'm using py2exe and pysnmp, and they seem to be incompatible, at least on the oneliner form I'm using. Pysnmp claims to …

Hi Iam running into a problem when using classes and inheritance. I have a base class which contains a member function whos job it is to create and intialize some variables that are shared between other classes. The other classes are inherited from the base class and the variables are …

This program is based upon the quadratic equation. If I enter a negative discriminant it prints NaN instead of "No real solutions". Any help will be appreciated. Why is it printing NaN twice??? What modifications are needed in the code? Please help!!! [CODE]import java.util.Scanner; class QE{ private double d=0; private …

My script is as follows : [COLOR="Red"]echo " enter the directory path of file " read DIR_PATH path=$DIR_PATH cd $path echo "">/tmp/df_mac echo " enter the name of file" read EXCEL_FILE echo $EXCEL_FILE src_file=$EXCEL_FILE count=`expr 1` one=`expr 1` while read line do IDX=`expr index $line \/` echo $IDX echo $line …

I recently was using the BinarySearch method and I was curious about why the designers had coded the method with the following for a return value: "Return Value The zero-based index of item in the sorted List, if item is found; otherwise, a negative number that is the bitwise complement …

Hello, i´m beginer in XSL and i need help. In attachment, is source xml and my xsl. I have problem with filtering element date. Because, when i run transform result is duplicate. Can you help me? thx Stan

The output I am getting is : [CODE]You will be entering the names of ten students their corrsponding marks in Physics, Chemistry & Maths. Enter the name of the student : student1 Enter the marks in physics of STUDENT1 : 43 Enter the marks in chemistry of STUDENT1 : 54 …

Hi, I created a class named [B]Test.java[/B] [CODE] public class Test { public Test() { System.out.println("Testing......"); } } [/CODE] It sucessfully compiles. Then i create another java class [B]Menu.java [/B]and here i trying to create an object of the Test class. [CODE] class Menu { public static void main(String[] args) …