Software Development Forum

Hi everyone, I'm working on method to fill a 2D grid with objects. This is what I have at the moment: [CODE]public void fillGrid() { for(int i = 0; i < ROWS; i++) { for(int j = 0; j < COLUMNS; j++) { String displayText = "#"; board[i][j] = new …

I'm using Eclipse and when I try to build the JMS example included in j2ee tutorial, it return a NullPointerException at this: [code]connection = connectionFactory.createConnection();[/code]. Here's the code of that example: [code]public class Producer { @Resource(lookup = "jms/ConnectionFactory") private static ConnectionFactory connectionFactory; @Resource(lookup = "jms/Queue") private static Queue queue; @Resource(lookup …

I have the following array below apart from it having more data and its all stored in a string array. how would I sort it so that It goes from highest to lowest. col 0 col 1 example 0 90.87 example 1 100.87 example 2 873.88 example 9 88.98 to …

Hello DaniWeb, [INDENT]I am making a command line program, which does not use a GUI. However, I am wondering if there is any code that I can use in order to change the program's icon (the one that appears on the top-left of the window, or in the Taskbar)?[/INDENT]

Hi guys, I am writing a small application which needs to load some images, and other resources. I am currently trying to find the best way to package these resources in my application. I have looked at some examples, I but I have been having trouble understanding them, and many …

i have a problem regarding functions. this leap year code is frustrating because it will always give me "not a leap year" whenver i entered a year: [CODE]#include <iostream> using namespace std; int get_input(); bool CheckLeapYear(int); int main() { int year,x; char key; do { year=get_input(); cout<<CheckLeapYear(x)<<endl; cout<<"Press 'y' to …

The user is asked to input the number of days in a month and the first day of the month. Here is the sample output: Input the number of days in a month: 30 input the first day of the month: 4 0-Sunday 1-Monday 2-Tuesday 3-Wednesday 4-Thursday 5-Friday 6-Saturday Sun …

Ok I have tried a few ways to get this loop to terminate before using the ending variable in the function but I cannot seem to figure it out. This is just my latest attempt. I want this program to end when the user enters 0 but it always returns …

I have a class "Homework" that has a private attribute "int time" and I have set up a + operator to add the times of two Object instances. I have also created a Template "sum(T a, T b)" that takes two arguments and adds them together. I'm having difficulty using …

Can I ask for some advice / help please, I am writing a UI that upon the user making a selection from a drop down list it then populates details about the selection in text boxes. I am writing this as three classes the main class, the UI (User Interface …

[CODE]import javax.swing.*; class Month { public static void main(String[]args) { String value=JOptionPane.showInputDialog(null,"Enter Month Day and Year"); if(value.length()==10) { char Month=value.charAt(0)+value.charAt(1); char Day=value.charAt(3)+value.charAt(4); char Year=value.charAt(6)+value.charAt(7)+value.charAt(8)+value.charAt(9); JOptionPane.showMessageDialog(null," "+Month+"/"+Day+"/"+Year+""); } else { JOptionPane.showMessageDialog(null,"INVALID INPUT!!"); } } }[/CODE] Hello i need help about combing the charAt()'s for example i would input 05/05/2010 i want …

hi there. Just wanna check if I am coding this wrongly, [CODE]int sumOfVotes = 23 int howlong = 94 double SimPercent = ((sumOfVotes / howlong) *100);[/CODE] Shouldn't the answer, SimPercent, be 24.4? Tks!

Hi, I have loaded a listview with data from a webservice. foreach (DataRow dr in dt.Rows) { ListViewItem lvi = new ListViewItem(dr["ProductName"].ToString()); lvi.SubItems.Add(dr["QuantityOrdered"].ToString()); lvi.SubItems.Add("0"); lvProductsOrdered.Items.Insert(0, lvi); lvi.Tag = dr; } Now when the user taps on the listview item I want to read the data back in: The list view …

[COLOR="Green"]Hello Friends... i made this Queue Program in c and its working good.. But I want to make it circular Queue please give some ideas..[/COLOR] [CODE] # include <stdio.h> # include <conio.h> # include <stdlib.h> # include <string.h> # define QSIZE 5 typedef struct{ int head,tail; char names[QSIZE][30]; }QUEUE; void …

Hi I have a list of False and True, which I have written to a file. When I read the file, I cant get back to my True and False list.... I only get the ["True","False"] version of it, but I want it to be like this: [True,False] Is it …

How to use RE to solve this, I did it with other method. THANK YOU VERY MUCH! Here is Question： '''Parse Stock prices. Create a function that will decode the old-style fractional stock price. The price can be a simple floating point number or it can be a fraction, for …

Hello, everyone i just start to learn python, but i have some problem of it can you help me figure it out please? my problem is i want to obtain a sensetce and obtain one randomly words from the use i want to write a prgram which can find out …

I have printed the contents of 2 folders to separate txt files. It is in the form of a python list ['a', 'b', etc.] How could I loop through the files looking for matching list elements? My first problem is how to extract the words from out of the quotes …

Hello, I'm having trouble translating an algorithm. I'm not sure I coded bits of this correctly, but I'm certain that I have no idea how to compare an item with a node identifier (cannot apply > operator with T,T) but since this is an insert sorted method rather than insert …

So I'm suppose to create some code that will perform some methods in recursion. Here's the prompt: [I]Assignment #9 will be the construction of a program that reads in a sequence of numbers (not necessary integers) from standard input until 0 is read, and store them in an array (including …

Hi. I'm new to this forum and to programming in general. This is my first programming class and it is in JAVA. I have been doing alright in the class, but am really struggling with this weeks program assignment. If you could help me out at all I would really …

First of all, thanks for any help that I'll receive. Now on to the question. I'm wondering how do I create an array of an object in C++? I've done this in Java before but I've got no idea how to do it in C++. [CODE] import Accout.java private Account …

hi everbody! How do i get pygtk to work with eclipse?

Hi! Thanks for trying to help me! I'm building a program that will allow me to have a different form for each person in my database. When the program first starts, I want it to cycle through the database and open a form for each row (each person). I'm generally …

(MOUSE CURSOR) Hello I'm wondering is it possible to set a condition if the mouse cursor's position changes or moves to a certain point , then it will execute a code like drag drop. Doing it on a windows form application

*sigh* I'm back again. Same program. Different problem. [CODE]private void executeToolStripMenuItem_Click(object sender, EventArgs e) { string aaa = String.Format(richTextBoxEditor.ToString()); /*<-- Guessing that this is redundant */ lua.DoString(aaa); //<-- problem code }[/CODE] When I attempt to execute the Lua code in the textbox, it crashes the program. Wat do?

I am trying to make a macro engine for a personal project, and it would work fine, except that the form won't show when I debug it. Take it for granted that I am using the LuaInterface DLL please. Code: [CODE]using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; …

Hi all, I am stuck on what 'should' be a fairly simple thing to solve, however after a good search i haven't got very far. Basically i am pulling data from a database which might have multiple lines of data, however for one particular task i only want to grab …

I have a difficulty I need help to overcome. I am developing a program that uses more than 1 class. Variables defined in one class are used in other classes. For example: [code] class X1 { private: int a; int b; public; X1() { a = 10; b = 20; …

[COLOR="Red"]Hello All Would you plz tell me how I can force a process to sleep for a specific period? i.e. I need an instruction similar to (Thread.sleep) Regards.[/COLOR]

Hi, im having trouble reading in lines of data using arrays and a structure. I believe my main problem is figuring out how to keep track of the lines read in, even if the whole array size isnt used up. Also, To break up each line I am trying to …

Does anyone know where I can find an absolutely free online tutorial on vb 2008 asp programming? I'd like to start learning web-based applications. Thanks!

Hi everybody, here i am again ¬¬, I am doing an exercise that ask me to write a program to calculate this constant: e = 1 + 1/1! + 1/2! + 1/3! ... The user need to input how much the program must calculate. I wrote this code, but i …

Hey guys, I am working on a program which allows me to create dance steps for a robot. I have 3 forms,namely movecategory.cs,arm.cs and head.cs. The movecategory.cs will have 2 buttons to access the other 2 forms arm.cs and head.cs. When I have chosen the direction of my head(e.g: 1), …

Hello everybody! I have to Questions to ask please: 1) How can I find the maximum value in a single linked-list recursively? this is what I tried to do: int findMax(int key){ Node max=head; while (max != null){ if (max < max.getKey()) return(max.getNext()); } } it ends up to an …

Hai, can any one please help me to converts array elements to a single string For Example : Myarray = ['Mac','Windows','vista'] Ouput should be like id='Mac,Windows,vista' Pleaseeeeeeeee help me............

I'm stuck. I currently have the following example file structure: X, Y, Z 0.000234E+04, 0.000244E+03, 0.000234E+04 0.000244E+03, 0.000234E+04, 0.000238E+05 0.000238E+05, 0.000244E+03, 0.000234E+04 I would like for the Scientific Notation to be converted to float or integer values: X, Y, Z 2.34, 0.244, 2.34 0.244, 2.34, 23.8 23.8, 0.244, 2.34 I …

I'm a newbie to Python and after much googling to no avail I wanted to see if I could get some help here. I'm trying to come up with a script to take lines from a textfile and insert them into specific places in another file. Here's a simple example: …

I'm looking for a simple way to modify a 2D list as shown below. Starting with a list such as this: 1,2,3 4,5,6 7,8,9 I want to create a list that looks like this: 1,2 4,5 7,8 1,3 4,6 7,9 Which is just the first and second column with the …

I have this question that I've been trying to solve for the past hour but i've been getting it wrong, can someone help me? Question: Create a list of the odd numbers between 1 and n (include 1 as well as n -- if it's odd-- in the list). Associate …

Hello. I'm running into a problem on an assignment I have for my C++ class. I've done similar things before with reading a file, but normally used a counter to know when to stop reading from a line and go on to the next, or code like this: [code] ifstream …

test program, dont understand after calling function it goes two times destructor "-5" is it wrong ? [CODE]#include <cstdlib> #include <iostream> using namespace std; class calculation { public: calculation(); // constructor ~calculation(); // destructor. }; calculation::calculation() { cout << "5"<<endl; } calculation::~calculation() { cout <<"-5"<<endl; } calculation function_one(calculation addition); int …

Hello Members, Can anyone recommend any easy-to-use and free Java Script IDEs? Thank you!! sciprog1

Hi all, I don't quite understand the program print the following output. [CODE] class D { public: D(int j):i(j){printf("default %d\n", i);}; D(const D& d):i(d.i){printf("copy %d\n", i);}; private: int i; }; int main(int argc, char** argv) { D d = 2; D d1 = D(23); } [/CODE] output: default 2 default …

Hey guys I have a study guide that I need some assistance with if possible. it is basically definitions. Classes={} Assume these statements are working with classes and objects: Attribute?property Instance Encapsulation Also I need to tell what this code does. I am not good with classes at all please …

I have a list [CODE]x = ['abc','1','2','3','def','6','8','5','13','mcg','568','35469','6453'][/CODE] I want the output file in a dictionary as follows: [CODE]dict = {'abc':['1','2','3'],'def':['6','8','5','13'],'mcg':['568','35469','6453']}[/CODE] How can i do this?

hey guys,been browsing this site for a few weeks,but this is my first post. As you might guess by my problem I'm a C++ noob. I'm tryin to make a program in which the user inputs an array of double, I then use bubble sort to to get it into …

Hi, Would be very grateful if someone could tell me how to start an array by getting the program to ask you how many values you want to enter (the maximum being 50) Thanks :)

What is the use of declarators in struct's definition? and what is a "tag declarator"? example from MSDN: [CODE] [template-spec] struct [ms-decl-spec] [tag [: base-list ]] { member-list } [declarators]; [struct] tag declarators; [/CODE]

Hello friends)) Prompt please analog of function (if it exists) TryStrToInt (Delphi) for C #. In advance thanks)