Software Development Forum

Hi all, I am trying to make sure that users can only input integers in my program and no other types. Here is the program: [CODE]#include<iostream> using namespace std; int main() { int numbers[9]; int k; cout<<"Enter 9 numbers: "; for( k = 0; k<9; k++) { cin >> numbers[k]; …

I'm having trouble with a for loop! I'm trying to solve a differential equation using Euler's method like so; [TEX]\displaystyle\frac{dy}{dx} = 7{y^2}cos(y^2)-3e^{xy}, \ \ \ 0 \leq x \leq 1 \ \ \ y(0) = 0[/TEX] This is solved using the algorithm [TEX]y_{n+1} = y_n + hf(x_n , y_n)[/TEX] Where …

The code for the Towers of Hanoi is here, the problem is what will the rest of the recursive calls be? [CODE] //provided in the main method that String Src="Src", Aux="Aux", Dst="Dst"; public static void solve (int diskNumber, String Src, String Aux, String Dst) { if (diskNumber ==0) return; else …

Why my program doesnt print ? [code] #include <iostream> using namespace std; class String { string s; public: String(string ss): s(ss) {} string substr(int pos = 0, int n = string::npos) { string str; int j = 0; for(int i = pos; i <= n; i++) { str[j] = s[i]; …

Hi guys. This is my first post here and I've read through the forum quite a bit and can't wait to get more involved. So here is my main problem: getting my code to take the text I enter into an entry box to be recognized as a string so …

I am have some really weird iostream errors. This is my first time using functions. Maybe I did something completely wrong. I just need someone to point out my error and maybe help with building a function to find the minimum value out of 4 input numbers. [code=c] #include <iostream> …

Is it possible to use a buttoncontrol to pause a for loop. Ex: When it has counted to 50000, I press Pause and when I press Pause again, the loop continues. Is it possible to achieve something like this ? [code] for ( int i = 0; i < 100000; …

Hello I'm trying to make a stem and leaf plot. The first function is supposed to call the other two functions and return the final plot. My code works for the first elemnt in the list and then stops. Is there something I have to do within my for loop? …

i have a csv file from where in i read the data and store individual coloumns in list , but for the last coloumn i am getting \n in the list . i want to get rid of that . [CODE] f = open('datagen.txt') for lines in f: line = …

The program I'm supposed to make a program where one thread starts three other threads. The original thread is going to wait until the three other has finished running and then the first thread can stop. The way I've built the program the three threads is started from one class, …

I need to modify my program to use while and for loops and be able to do the following tasks: a. A score of I on the project forces a mid-term grade of I. Notify the user to contact both the student and their advisor of the I grade. b. …

Hi! Having some problems with functions in this one. As ypu can see I'm a tottal beginner. What I'm trying to do here is make a program checking if a word is a palindrome. Using 2 functions, one to check and one to reverse the user input string. My problem …

Probably easiest if I just quote, [QUOTE]5) Assignment Entity, A class that models an association between an Employee and a Project Each project usually has several employees working on it at any one time, but there may be none at times. Each employee must work on at least one project, …

Hi all, Does anyone know what meanings of %-10d and %-10.10s ?

Hey guys, I need to create a software which can read a barcode and I should be able to enter the value obtained from it into a database and also I need to compare them with certain values. I am comfortable working in java and would like to know how …

Hi, I am trying to make a program which outputs an Invoice Number, which consists of the first 3 letters of a person's first name and the last 3 digits of their zip code. The user enter their first and last name, then enters their city, state, and zip such …

Could someone help me put the following C++ in correct order. The statements in the following program are not in the correct order. Rearrange the statements so that hte program outputs the total time an employee spent on the job each day. Th program asks the user to enter the …

I made a wxPython gui to interact with a camera, however the lab is very matlab centric and the professor wants everything to be controllable from matlab. I think this is more of a matlab problem, but it's python related and I thought it might be a little odd to …

I am going out of town and don't have access to my professor and / or tutors for the weekend, and we have an assignment involving a BST. I have done all of my insert, remove, and search functions, and went to the tutor about the remaining ones I have, …

From what I gather as a Java beginner, when accessing instance members, the "this" keyword may apparently be used. see this program, [CODE]class sphere{ static final double PI=3.142; static int count=0; double radius,xcentre,ycentre,zcentre; sphere(){ xcentre=0.0; ycentre=0.0; zcentre=0.0; radius=1.0; count++; } sphere(double xcentre,double ycentre,double zcentre){ this(); // what does this mean …

Setter getter ..? what is this and what it does ? i searched over google but didn't find the suitable answer...!

Hey guys, i am having a problem passing my array into a function . What i am trying to do is to pass my array called Alphabets[] from my main into a function called Key. THe issue i am having is that i keep getting an error telling me that …

hi guys I got this weird error which I cannot debug in my code. The program is to convert Roman numerals to Arabic numerals using the Interpreter design pattern. Here is a part of the program where the errors occurs RNInterpreter.C:8: error: new types may not be defined in a …

Hi all, I'm new to C++ & taking my first class in programming. The program ask the user to enter the loan amount, number of years, and interest rate, and then displays the amortization schedule for the loan.The monthly payment for a given loan pays the principal and the interest. …

Hi. How can i make Dialog box visible only in one application window for examlpe only on firefox? I'm using MFC. Thank you

[CODE][/CODE]I thought I knew how to use vector and manage insert, push_back and erase, but apparently I don't. I encounter an unexpected outcome when i attempt to erase the second element in a vector of four: the element is removed, yet the content of the element following it is modified. …

im getting an error while trying to print array contacts[i], why? any help? Thanks! :) this is my class Address where im gettingthe error: [CODE]import java.io.*; import java.util.*; public class Address{ //Declare variables String first; String last; String homeadd; String homeph; String cellnum; Scanner sc = new Scanner(System.in); public Address(String …

How do I write this C++ sentinel-controlled while loop? I need to write a sentinel-controlled while loop to see if the coefficients of a quadratic equation have real roots using a nested decision. A character q must be my sentinel. This is what I have so far, but it doesn't …

Everything runs fine, except the Lowest Temperature and HIghest Temperature do not output correctly. Also any suggestions on how I could implement vectors, Any help would be greatly appreciated. Thanks. [CODE] #include<iostream> using namespace std; int main() { int i(0); double Calc(double fahren); double Total(0),Celsius[5],Fahrenheit[5]; double CelciusLowTemp(0), FahrenheitLowTemp(0), CelciusHighTemp(0), FahrenheitHighTemp(0); …

I haven't done any C++ programming for quite a while now and the last compiler I used was Dev C++ (not sure which version/release but likely an old one). I want to start programming in C++ again but I'm an unaware of which free compiler would be the best to …

Hi, all I have been learning the python language for a couple of weeks. For now I only know a little of the language, the syntax, usage of the builtin types such as str, lists, dicts, and tuples, this is fine for writing some simple scripts to process text files. …

Hello. Well, for creating linked lists, i always use 2 pointers: one for beginning and one for the end of the list. Is this OK? Or am i required to have just a single pointer pointing to the beginning of the list and then traverse everytime i need to insert? …

Hi all I have a gantt chart which i draw with JFreeChart. I want to add to this grpah a line that shows the current date. Does any 1 knows how to do it? Here is the code that i've written: [code] /* * To change this template, choose Tools …

I am Creating a MFC Application to Read a Text file into a Edit Box. I am implementing the following code [CODE] FILE *m_pFile ; CString m_strLine , m_strText; char line [1000] = "" ; m_pFile = fopen ( "C:\\SELF.txt" , "r" ) ; if ( m_pFile != NULL ) …

I am trying to do an exercise in Stroustrup's book. The task is to create two arrays (with different values) and pointers to each array, and copy the first array to the second using the pointer and reference operators. My code is below. [code] #include "../../std_lib_facilities.h" int main () { …

Hi all. I'm trying install python 3.1.2 on RHEL4 from source, but 'make' failed to build some necessary modules. Followings are from build log: *** WARNING: importing extension "_ctypes" failed with <class 'AttributeError'>: 'module' object has no attribute 'load_dynamic' Python build finished, but the necessary bits to build these modules …

Hi,I am able to draw rectangles on the picture but I am not able to capture the co-ordinates of the picture box instead it capture the screen coordinates.So the rectangle that I draw on the picture box doesn't appear on the position that I desire. // Convert and normalize the …

Dear All, I am new to korn scripts the below mention scripts for taking the system backup in NIM environment its looks okay but its not removing the old objects& system backup for more specific i am getting error on line number 83 Need help pls [code]#!/bin/ksh # # nim_mksysb …

Hello All, It an urgent requirement. How can I use Google API for windows application. I am using visual studio 2010. and downloaded API and added the reference also. but on coding there is some translate client occurs and it requires some site. I just want to translate the text. …

Hi friends, which are the JAVA API's available for to connect your application with LinkedIn.

I am trying to get the numbers in the array to give me a average out put. here is what I have so for: [COLOR=#0000ff][/COLOR] [CODE] #include "stdafx.h" #include <iostream> #include <cctype> using std::cout; using std::cin; using std::endl; int main() { int grade[10]; int count = 0; char reply = …

Hi everyone. I have an MFC project in Visual C++ 6 and was wondering in which way can i detect the level of audio output. I want to execute some code only when no sound is sent to the audio output. Could anyone please give me a clue of how …

Hi there, I just wanted to find out if one can have a actionListener() in one .class file and then have the actionEvent() in another .class file? If not, how would I go about to get the same effect? Thanks!

Our teacher really sux, he just wrote this down on the board but didn't explain the program :(...after a lot of search i finally understand what is try and catch but what is the meaning of [iCODE]byte b=new byte[255];[/iCODE] in this program ? and why the program is not working …

hi all, just want an opinion from all of you out there on how to do descending sort. I got this sort example code from the net but it does ascending sort. Is the a possibility that if I change a few line inside the code it will come out …

I Have To Write A Pseudo Code For A Unit Converter. I Have Written The Program Already But I've Not Really Written One Before. It Converts Miles To KM: Dim DataIn As Single Dim DataOut As Single Dim ConversionType As String Const M2KCoefficient As Single = 1.6 Private Sub UserForm_Activate() …

I see so many examples everywhere and none of them helped me fix these problems, so if anyone can help me I would greatly appreciate it. I have explained my errors in the red Highlighted sections in comment form.... [CODE] package lab41thestockclass; class ParkedCar { private String make; private String …

Pls check the code. for example during betting if you write "One" if the dice comes 1, you win. but when you write one it writes 2.28 1026 why. I dont want case sensitive and it would be perfect if the first and second character I write for input, it …

Hi there, I have this kind of sample table. [CODE] Name Math Science English ------------------------------- Ben 86 88 80 Peter 80 79 83 John 84 90 86 [/CODE] I want to save this result, dynamically, in a "table" in Java. I want it to have a sorting function. Some of …

Write a program to enter a score and a points possible for a test, computer the percent, display the percent to 1 decimal place and then display the letter grade (A – F) using a standard scale (90, 80, 70, 60) – use the if ... else if ... else …