Software Development Forum

I can loop while the datatable is full, but get an error when it is empty. How do I know it's empty.

I just wanna be able to input 10 integer numbers, display the numbers, then be able to modify a specific number I have already entered, then display the new updated numbers again. [code] //Date: 4/6/2010 import java.io.*; public class EnterNumbers { public static void main(String[] args) throws IOException { BufferedReader …

i have to write a program that takes input from the user and displays a simulated check we have to write the dollar amount in words and i cant figure out how to go about doing that. this is my code so far. [CODE]//******************************************************* // Include Files //******************************************************* #include<iostream> #include<iomanip> …

I am trying to learn xslt and I'm having difficulties trying to figure out how to process a file that is not built out as a hierarchy (except based on an attribute) and change it into a hierarchy. Using the following XML [CODE]<?xml version="1.0" encoding="UTF-8"?> <data> <h level="1">test</h> <p>some data …

Hello Guys, I have found many source codes to implement linked list. But all are inserting or deleting the node values after user's choice. I dont want that. Insertion should happen dynamically. I have a client program running on another system. I fetch the data from that system through my …

I have been looking for the answer for 7 hours. So a quick google isn't going to cap this one. I Am working on a programming notepad app with intellisense like Visual Studio. only I have run into a big issue. In Visual studio the little intellisense window is its …

[quote] I am working on a homework asisgnment from school and need some help. I am stuck on coding to set a private field to my Box class with three constructors.. It's kind of confusing when dealing with more than one constructor. The following is the code for the box …

Hello all, i have a small problem with my application and i am stuck now.... i have data coming on a particular port and i need to trasnsfer that particular data that i received to another port on a different machine... The data that i receive is over udp and …

Hi, I am hosting a UDP server as part of my application on a thread. The problem is when I close the application it doesn't exit completely because the server is still running on the thread. [code=python] class pdu_parser(Thread): run_parser = True sock = None def __init__(self): Thread.__init__(self) def run(self): …

What is the meaning of compiling a regular expression? Not only in java but also in other languages like python has compiled representation of a regular expression. Actually it always bothers me what happens when a regular expression is compiled? All I know is it makes further matching of patterns …

import java.awt.*; import java.awt.event.*; import javax.swing.*; public class TicTacToeV1 implements ActionListener { /*Instance Variables*/ private JFrame window = new JFrame("Tic-Tac-Toe"); private JButton button1 = new JButton(""); private JButton button2 = new JButton(""); private JButton button3 = new JButton(""); private JButton button4 = new JButton(""); private JButton button5 = new JButton(""); …

When I start debugging all my ribbon buttons get smaller. Here is the difference. [URL=http://img683.imageshack.us/i/helpp.jpg/][IMG]http://img683.imageshack.us/img683/5600/helpp.jpg[/IMG][/URL]

Hi im trying to allocate memory using malloc(). Also, im trying to make a copy of the string before i allocate it. So im using strcpy(). But im still having issues with compiling it. please help!! [CODE] #include <stdlib.h> #include "setup.h" char *run( const char * const str ){ strcpy(str) …

Hi All, I have a popup window, which shows up after double clicking an installer. This window has 3 buttons: Back, Next & cancel. Using win32api I am able to get the window handles for all three buttons. I need to find out which of the buttons is enabled or …

Dumb question, but I've searched everywhere and found nothing specific: is it possible for HSB values to translate directly into a colour (eg. a hue of zero equals red) instead of passing them through an RBG conversion? Also, dumber: I'm not understanding the arrrays people are using, for example [URL="http://www.squarebox.co.uk/users/rolf/download/ColourWheel/ColourWheelApplet.java"]here[/URL] …

Hi I've just started out in c++, can anyone tell me how to use pointers which hold addresses of objects ? How do you access the object fields from this type of pointer, especially strings (array of chars)... I'm using a Dev c++ 4.9.9.2 compiler....

I want to enable/disable a table cell based on the contents of another cell. e.g. if the reference cell value is "true", then enable the cell, otherwise disable the cell. I have set up isCellEditable() to do this and it works if the reference cell already has a value when …

Write a Java Class file for the class Account that represents a bank account. Usually, a bank account has a unique account number that is used to identify it. Your class should generate the account number automatically whenever a new account is created. The class should also store the account …

Hi all, This is a script that reads in text from a file and separates it into characters. It works fine as long as MAXSTRLEN is under 610000. However, I need it to read in whole books of text. Whenever I try to bump that number up above 610000 or …

Dear all, I am writting a code for high dimensional chebyshev interpolation. Since it is high dimensional, I MUST use extremely large arrays. Something like this: [CODE] #define DIM (int)2 #define TOTAL_STEPS (int)30 int main(){ double *a_data; long long a_dim; /** length of matrix a_data **/ int n; /** # …

I want to hold user input strings in an array and be able to print it. Is there a way for me to hold string 1 in arr[0], string 2 in arr[1] and so on and so forth? heres what Im thinking [CODE] int p=1, r=3, l=0; char arr[255]; while(p …

It is said in many places that comparing two floating numbers for equality can give wrong result and we have to take into account some epsilon value like this float f1,f2; if (f1-f2<epsilon) printf("gotcha"); So what is the reasonable estimate of epsilon? My intuition is that that has to be …

Hello, I am opening a new Form in my application and want to pass along a variable to Form2. I think I am pass along it correctly but are not sure how to receive it in Form2. How will that be possible ? [code] String^ ForwardVariable; private: System::Void button1_Click(System::Object^ sender, …

I have been trying to figure out for the life of me what I am doing wrong here, and I am coming up blank. My operator is returning the correct value in temp - as you can see highlighted in red, however, when I use the operator in main - …

So far no one has been able to tell me why this code is not working, or what I need to do to THIS code to make it work. Can someone simply show using MY code below where the problem is, and why it's not working properly? Problem: I am …

how does long and long long differ? The machine I am using has core 2 duo processor. It shows the same size (8 bytes) for both of them. Was short type ever was 1 byte and changed to 2 bytes later on? Was long and int ever was 4 byte …

using switch and if ... else statements, write the two grading programs. consider the following grading system; 70-100 A 60-69 B 50-59 C 40-49 D 0-39 F

Hi struggling with java - we have a class Structures and Algorithims in which we are supposed to pick up java in 5 weeks Have been pouring over material and searching sites but trouble is when I start to write ends up nothing seems to work unless we copy and …

hey, im having trouble making a python program run using a window, honestly i dont even know where to start. I have to make a coffee program where there is a menu and the user has to choose between adding, modifying, searching, showing, and deleting any entrys made to the …

In the following code: [CODE]#include <iostream.h> class Base { public: Base(){ cout<<"Constructor: Base"<<endl;} ~Base(){ cout<<"Destructor : Base"<<endl;} }; class Derived: public Base { //Doing a lot of jobs by extending the functionality public: Derived(){ cout<<"Constructor: Derived"<<endl;} ~Derived(){ cout<<"Destructor : Derived"<<endl;} > }; void main() { Base *Var = new Derived(); …

In some c++ source code I wrote this: [CODE]#include <iostream.h> using namespace std; [/CODE] [CODE]error: iostream.h: No such file or directory[/CODE] I compiled it using g++. But when I changed it to #include <iostream> it started working. Why?

hii i just downloaded a dev c++ compiler...& wrote the basic hello world program...whenever i try to compile ..my quickheal antivirus deletes it as a trojan...please help..i reinstalled it but gives the same result

I need an algorithm for the following problem: There's a tree with N fruits each with its own weight w[i] and height h[i]. I can only reach a fruit if it's no taller than H inches. Also every time I pick a fruit, all the other fruits in the tree …

Hello, I'm curious to know whether it is possible to expose the functions of a C# application so that they could be used by another C# application in runtime. The thing I am referring too is quite similiar([I]might even be the same[/I]) as using an API. I have searched on …

hai friends can anyone give me an example of a program to hash using crypt(3) thanks linux learner.

hey everyone ok so i have reached another road block any pointers are much appreciated the program will not compile due to eclipse not liking the int Password::passwordNumber(int i); int Password::passwordCapLetter(int i); in the .h any ideas demp.cpp [CODE] /* File Name: Demo.cpp Chapter No. 12 - Exercise No. 12 …

I keep getting that error when I open my form in which I have control that are dynamically created. ERROR 340: Control array element 0 doesn't exist

hi, can anyone help me to solve the following java problem write a java program for holding a stack of up to 10 characters. pls help me. thanks you shantuli

I am taking date of birth as input from my form and storing it, I need to calculate the age from this date of birth. While this problem seems easy(I haven't tried it out for myself,used one of my friends code) I also need to increase the age of the …

Hi, I'm trying to use the built in gcd method to calculate the gcd for two values. Unfortunately I can't seem to import the right module to get the method. [code=python] from fractions import Fraction ... x = gcd(a,b) [/code]

I'm trying to code the game of minesweeper. For some reason, the image won't display properly--and it isn't a case of a missing file, b/c I have a try-except code snippet that is set to print out an error message should this occur, and that isn't happening. So either it's …

Trying to learn Java on my own with the book "Starting out with java" The question is this Write a class that has three overloaded static methods for calculating the areas of the following geometric shapes: circles rectangles cylinders (it gives the formulas for the are of them) Because the …

Guys, I need help When I compile my code, I get [code]error: invalid operands to binary ^ (have ‘float’ and ‘double’)[/code] Here's some portion of my code: [code=c] #include <stdlib.h> #include <stdio.h> ... float freq; const float key_magic = 2 ^ (1/12); ... freq=440*(key_magic)^(atof(optarg)-49); [/code] Thanks

Running Mono on Ubuntu 9.10 Main.cs [CODE]using System; using SdlDotNet; using SdlDotNet.Core; using SdlDotNet.Graphics; using System.Drawing; namespace TroutWars { class MainClass { public static void Main(string[] args) { Video.SetVideoMode(1024, 768); Events.Quit += new EventHandler < QuitEventArgs > (Quit); EventArgs.Run(); } void Quit(object sender, QuitEventArgs e) { Events.QuitApplication(); } } }[/CODE] …

I wrote this distructor one way, but the person who code reviewed it seems to think it's better and more readable the other way. I disagree. It's probably more a matter of preference, but what do you think... [code] RfPrinter::~RfPrinter() { if (!hub_.empty() && !name_.empty()) { clearbuf(rfunitlock); rul_hub = hub_; …

I am recently new to C++ and I wondered if someone could show me how to modify my program below. I want the program to test if there is more than 1 day that has the highest rainfall and susequently to output those corresponding days. Than you :) [CODE]#include <iostream> …

I am trying to understand how draw graphics to the JPanel class but i have only been able to display one object at a time(unless i draw muiltiple shapes in my extended JPanel class but i dont want that!) [CODE]import java.awt.*; import javax.swing.*; /* Create a new graphics component that …

Hey guys, i am having a problem solving a this part of my coding. Basically, what im doing is for the program to read a string, and if there is a value of 'M', the value of num will go up by 1000. Here my coding .... [CODE] string msg …

ive set up a connection string and whenever the program hits myConnection.ConnectionString, it will appear such an error : A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that …

I need to use Scanner and StringTokenizer to find a word then print that line in text area when found it. This is the Search Button's coding : [CODE]private void btnSearchActionPerformed(java.awt.event.ActionEvent evt) { try { Scanner scan = new Scanner(file); String search = txtSearch.getText(); while (scan.hasNextLine()) { line = scan.nextLine(); …