Software Development Forum

i have a problem and i can not solve it. Problem is that for example there is an admission form on internet and a student enter his name in digits no dought it is wrong and now here is a problem how to restrict the student that he/she should not …

Hi guys , please look here . Consider code segment String a=new String("SMS Message"); String b=new String("SMS Message"); if(a==b) System.out.println("they are equal"); i) why it does not generate an output ? ii) how can we rewrite the program such that it will print the output ?

here is the question: The series of numbers: 1, 1, 2, 3, 5, 8, 13, 21, ….is known as Fibonacci series. Each number is the sum of the two preceding numbers. Write a C++ program that writes the first 5 Fibonacci numbers to a file fibnos.txt (in your local drive). …

Alright this is reallly stumping me and rather aggravating. Long story short, I didn't like how the ListView worked in C#, so I decided it was time to build my own, using a TableLayoutPanel and a custom control I built to emulate the image and text effect. Well while testing …

I'm trying to understand this function. I try to compile an run it, but it gives an error message at line 12. Thanks. #include <iostream> #include <string> #include <cmath> using namespace std; int stringConvertInt(string raw) { int sum=0, power=0; power=raw.length()-1; for(int i=0; i<raw.length(); i++) { sum=sum+(pow(10,power)*(raw[i]-48)); power--; } return sum; …

i have a problem that how to concatenate more than two string in operator overloading i write a code but it is not run #include<iostream> #include<conio.h> using namespace std; class count { private: char str[50]; public: count() { str[0]='r'; } void input() { cout<<"Enter string = "; cin.getline(str,50); } count …

using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace interfejsi interface Figura { String Plostina (); String Perimeter (); } } using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace interfejsi { class Kvadar : Figura { int a,b,c; public String Perimetar(int a, int b, int c) { return (a …

#include <iostream> #include <conio.h> using namespace std; int main(){ char command[1024]; char newchar; cout << "Command Line Interface Test with Intellisense" << endl; cout << endl; newchar = _getch(); command = command + newchar; } My Code. It doesn't work. `command = command + newchar` has a problem. Please help.

I need to write a code that is gonna remove a whole row/column in a matrix(either static or dynamic matrix)

hi, I want to spent the values of textbox to datagridview from another form and that after a click on the button add, help me please

I have a text file below that I read from. 0123456789012345678 IN NUMBER LOOP LD NUMBER BZ LPEND LD TOTAL ADD ONE STO TOTAL LD ZERO SUB NUMBER BGTR ENDIF BZ ENDIF LD POSITS ADD ONE STO POSITS ENDIF IN NUMBER B LOOP LPEND LD POSITS MPY HNDRD DIV TOTAL …

Hi everyone, I'm trying to extract text from between tags but only in certain conditions. <title> and <pos> are both children of <page>, but neither one is nested inside the other (i.e., they're siblings). Each <page> always has one <title> and zero to 5 <pos> sections. What I need to …

Ok so I have been searching for several days on how to write a simple python script that will HTTP post to my server. I am jsut looking for some tips on how to write this properly cause as of right now im having to upload my add and update …

what is the notion of event driven architecture in context of GUI ?

I tried all possible test cases and It outputed the correct answer , I wonder why UVA doesn't accept my answer <#include<iostream> #include <stdio.h> using namespace std; int main() { int i, j; unsigned long long int tempI, tempJ; int maxCaseLen = 1; int count = 1; while (scanf("%d %d", …

I have following code for date and time in vb.net. I am not able to set timer in the textbox 4 and 5. What could be there in timer1 event? Dim theDate As Date theDate = Format(Now(), "short date") TextBox1.Text = theDate Dim mytime As System.DateTime Dim hours As Double …

Hi guys , I dont have idea on how to solve this problem . I attach my question but I dont know whether it is true or not. Can you please help me Given an output file named "data.txt" write the code fragment to i ) set up the file …

I am using vb.net with OleDb database. Following is my code, although i am to search database but not able to save after making changes. It displays following error at Command.ExecuteNonQuery level as OleDbException was unhandled, Data type mismatch in criteria expression. Imports.Sysytem.Data.OleDb Private Sub Form1_Load(ByVal sender As System.Object, ByVal …

Hi was wondering if anyone could take a look at my code and see whats going wrong here because I have changed the code about 20 times trying to fix the error and still no luck. I have created a web page that the user must fill out, I then …

// This program uses the a queue template to create a queue of strings. #include <iomanip> #include <iostream> #include <cstdlib> using namespace std; // // TO CREATE A "template" class named "T" template <class T> // // TO CREATE A CLASS NAMED "Dynque" class Dynque { private: struct QueueNode { …

Hello, I have a bug in my program somewhere and I cannot understand why. The program merely prints data from a binary file. Here is the code: #include <iostream> #include <fstream> #include <vector> #include <cstdint> using namespace std; int main(int argc, char *argv[]) { if (argc!=2) { cout<<"Invalid argument count, …

Hello, I am delving into OOP now and am having issues with creating properties. Below is my code. Basically what I did is created a custom class and am creating a property within that class. But what happens is it will put a red squiggly under 'Multiply' saying 'not all …

i am trying to overload +operator to concat 2 strings i tried to write a code but it is giving 2 errors and i am also not sure whether logic is correct..MY CODE is [CODE]#include<iostream.h> #include<conio.h> #include<string.h> class string { char *str; public: string() { cout<<"enter string"; cin>>str; } void …

I'm implementing a generi method that's supposed to traverse a binary tree in PostOrder but when I attempt to use it, the Iterator doesn't work as It should when I attempt to use ot on a Binary Tree, can anyone spot my mistake in the code? Thanks. The method makes …

i want a full code for finding different ways to climb the n-stair case problem that is each step is either 1 or 2 stairs. Eg- a 3-stairs staircase can be climbed in 3 ways :1-1,1-2,2-1. Using subset method can any one can help me out for this problem?

Hello, I have the following problem: Entering coordinates of points on a plain with keyboard (as rows x,y). Analysing this coordinates. Replacing coordinates in vector (point - structure data type). Then calculating distance from the first point to all another points. I've written the code of this problem using arrays …

Hi, i have just started programming with python and i have beken given a task where i must create a python calculator. So far i have created the code (seen below) however i need help explaining it-e.g. saying what each part of the code does: from tkinter import * root …

I have solved it... Shame... -------------------------------- I have problem with this code: cin >> str; smatch m; regex e("([[:w:]]+)@([[:w:]]+)\.com"); //<- Here was the error (it was regex e("([[:w:]+)@([[:w:]]+)\.com");) silly me :(( bool found = regex_search(str, m, e); cout << "m.size() " << m.size() << endl; for (int n = 0; …

Please help me I cant answers these questions at all . Question b Suppose a class named FootballClub is to be definêd. i. Suggest THREE (3) data members for the class' ii. suggest TWO methods other than accessors and mutators for the class' iii. code the class in Java based …

I am reading the (otherwise excellent) The C++ Programming Language (4th edition - Hardcover) (Stroustrup) and I cannot understand about 4 pages of it despite a lot of attention to it. It's section 27.4.1 Composing Data Structures starting page 767. After reviewing obviously unsatisfactory alternatives on page 767 for a …

Hello, I recently took a course on assembler/compiler construction. In it we covered parsing algorithms such as LL(n), LR(n), LALR(n), and SLR(n). I understand how these parsing algorithms can be used to determine **if** an input string follows a context free grammar (CFG). At some point I also understood how …

I'm using VS 2013. I want to use the system.numerics.biginteger structure but VS says there is no such namespace as system.numerics! According to MSDN there should be. What am I missing? Imports System.IO Imports System.Numerics '<<<< error Module Module1 Sub Main() Dim OneLightYearInches As BigInteger = 372469703661417000 End Sub End …

I am wanting to create a card game that will have 1 to 7 players plus the dealer. Currently I have 1 player and the dealer. Each player will have a listbox that contains an index for each card in the player's hand. As the cards are dealt each player …

Does anyone here know what programming languages does the military usually use to make sumbarine softwares? If anyone can point to some links because i wasn't able to find anything on the net.

Hello, I need a litle help here. I am creating a program that finds a specific sentence in a word path and replaces it with a given value. Specific sentence: l="600" And it has to be changed to : l="300" This is not to dificult and works fine: Public Class …

Hello Guys, Good Day. I have this kind of error `OperationalError: no such table: table_name` when I make a query like `modelname.objects.all()` in **manage.py shell**. But I already did the ff: 1. settings.py > Databases > django.db.backends.postgresql_psycopg2 DATABASES = { 'default': { 'ENGINE': 'django.db.backends.sqlite3', 'NAME': os.path.join(BASE_DIR, 'db.sqlite3'), }, 'db_foo': { …

//The code contains 10 distinct syntax errors. //Rewrite the code, correcting all syntax errors. int _tmain(int argc, _TCHAR* argv[]) { int numStamps{4} = {0,0,0,0}; ProcessFileData(numStamps); DisplayDenominationTable(numStamps); double totalCost = CalculateCost(numStamps); cout << "Total cost of stamps is " << totalCost << " euro"<< endline; return 0; } //this is my …

I have a python script that connects to my database and updates it with a file that i specify. But i keep getting a syntax error on line 5 and for the life of me i can not figure out what it is. If someone could pointit out and how …

How do i get make the correctLabel to have all the text disappear so there is NO "correct" and the "buttonclicked values". I have been tryin but i can only manage to get the "correct" to dissapear the button clicked values are not removed correctLabel.setText("Correct: " ); // this sets …

Well, in my previous thread i needed help deleting arrays, for the codes i use its here: http://www.daniweb.com/software-development/vbnet/threads/426588/how-to-move-arrays-1-place-down- But now i need help saving the arrays, i can save all the arrays to ini file like this: Ini module: Option Strict On Module INIAccess #Region "API Calls" ' standard API …

Hello, how to programatically close outlook model pop up in vb6.0? Thanks

Im trying to add odd numbers recursively from n to m but its not working . im sure its in the recursive logic on how im passing the arguments or something. public static int OddSum(int low, int up,int total) { if(low==up) { return up; }else { low+=2; return total += …

I was going to check if a temp table exists and delete the it,since "the temptable already exists" arises if you want to perform another operation. Here's the code i used five statements but it says syntax error in drop table or drop index statement. Any help would be appreciated. …

I am just learning how to call arrays through methods and I know how to do it when they are integers, however, my teacher did not go through too much on what to do with Strings. I figured they weren't much different, overall same concept, however I keep getting an …

I have been racking my brain for a bit on this and just can't figure it out. The book "Object-Oriented Programming C++" by Joyce Farrell pg382 exercise 13. They're wanting me to make a class named "PlayingCard" that contains 4 fields which are values and suits in both numbered and …

Hey all, I was wondering if a web page could be opened in Mozilla Firefox using a shell script!..I haven't given it a try as yet...I will also try and if I find a a solution I'll definitely put it up....Till then if someone finds a solution or knows it …

This is a trivial program in Turbo C 2.01. It is intended to show that C can do arithmetic with mixed data types, and what the results are: #include <stdio.h> void main(void) { int num1 = 5; float num2 = 2; int num3; num3 = num1 / num2; printf( "%f\n", …

Hi, I am new to VB.NET and am working on what is pretty much my first app. The app is based on a sql data source (created within Visual Studio) and basically is intended to show who is on-call when the app is loaded. So, i have some test data, …

The code isn't displaying and then reversing entered numbers. reverse.cpp // // #include <cstdlib> #include <iostream> #include "linkedStack.h" using namespace std; int main() { linkedStackType<int> stack1; linkedStackType<int> stack2; cout << ""; cout << "output your name\n\n"; int number = 0; // AUSE LINKED STACKS // cout << "Enter first number …

i want to understand that what is bolean data type in c++. I tried to my best but i can not understand boolean data type plz help me