Software Development Forum

As the title suggests I need to write the class of a graph object. It is required that I write a function that prints the graph determine if the graph has conex components,what are the cinex components, if the graph has cycles, and to determine the shortest and longest road …

Hey; I'm practicing with template classes. When I declare a user-typed destructor for this template class, the program freezes and needs to be closed explicitly. Obviously, in the destructor, I am trying to release the memory allocated to hold the coordinates[3] array. What is the problem with declaring a user-typed …

[CODE] #include <iostream> using namespace std; class vector1 { float vector[]; int y; public : vector1(int x) { y=x; cout<<"enter the elements of the array"; for(int i=0; i<=y; i++) { cin>>vector[y]; } cout<<"elements of vectors are"; cout<<"{"; for(int i=0; i<y; i++) { cout<<"\n"<<vector[i]; } cout<<"}"; } void modify(int z) { …

Hey guys. I'm working on a simple hangman program. I got the core engine down working in a command prompt, and now I'm making it using classes and a GUI. I'm using tkinter. Anyway, everything works with no error, but the image is not displaying at all. Here is the …

FileInputStream inherits from InputStream which has a mark() method which does nothing. FileInputStream itself doesn't define any mark() method. Even then, if I wrap a FileInputStream object inside a BufferedInputStream object and call markSupported() on it, it returns true. In the docs, it says that the mark() method of any …

Is there any program that can help me customize my GUI? Like add some color and pictures? Adding color into my Jpanel, JBotton, etc?

I'm trying to create a random float generator. The float must be 2 decimal places and between the values 0.50 and 999.99. I tried casting rand() to a float below, which didn't work. I'd still like to know the reason this didn't work. [CODE] saleAmount = ((float)rand() % 99950.00 + …

Hello, I have made a web application program that takes one string and outputs it through an array into three seperate textboxes using comma seperated values. This works fine - BUT I want data 0 to only allow entry of strings (it's a name), data 2 to only allow entry …

Hi, I need two functions one that checks if the inputed number is a prime number and second one that splits the given number in to prafactors. I have the first function done but the second one is a bit annoying. The function has to take the given number and …

I am in my way of studying the linked list chapter of C++.. So i go through this code below intended of understand it. [CODE] #include <iostream> using namespace std; struct nodeType { int info; nodeType *link; }; void printList (nodeType *first) { nodeType *current; current=first; while (current != NULL) …

Hi there developers! I'm trying to develop my own online multiplayer game, using the DarkGDK. But I don't want everyone to have access to the media of the game, so I'm working on my own cache archive format. This is how it works: .idx0 = textures .idx1 = sprites .idx2 …

Here's my problem. I need to add only the first and last elements of each row, and display them separately. Ex. Row 0=11 Row 1=11 Row 2=8 [CODE]int arr[][]={{5,9,6},{3,2,8},{7,0,1}}; int sum=0; for(int row=0;row<arr.length;row++){ for(int col=0;col<arr[row].length;col++) sum=arr[row][col]+ arr[row][col]; System.out.println(sum+" ");[/CODE] this is my code, and i think i just need some …

How could I empty my JTable (AbstractTableModel)? If I run [ICODE]tableModel.deleteData();[/ICODE], then the message "0 >= 0" appears. Thanks! [CODE]class QueryTableModel extends AbstractTableModel { Vector cache; // will hold String[] objects int colCount; String[] headers; String url; String databasename; String login; String pass; Connection db; static Statement statement; public QueryTableModel(String …

hey guys...!! i really want ur help in this program..!! its a Hospital management system program..!! it take input from the use..it can save input in a file..display all input on to screen, but i cant find a way to delete a record/patient details from the file PLZ help me..!! …

Hi all! I have been given the task to modify the code below so that it can do subtraction, multiplaction and division, not just addition. Could someone help me with this and explain what the strncpy does? I'm so confused!! // C Parsing Adder program #include <stdio.h> #include <string.h> // …

Hi! How could I open a file saved on FTP Server? I'm using org.apache.commons.net.ftp.FTPClient to save/delete files. There are only 5 types of files: doc, docx, xls, xlsx, pdf. If I select a pdf file, then it must be opened in Adobe Acrobat, etc. So, what is the best approach …

Hi everyone! Does anyone here know how to create a C program that will open a web browser depending on the user input? For example if the user inputs the integer 1, the web browser will be opened and will go to 'http://www.daniweb.com', when the input is 2, 'http://www.google.com' will …

How do I allow the display to show numbers with the commas, but then when it does the calculations, have the commas go away for the math since obviously java can't read commas in calculations? example [CODE] DecimalFormat df0 = new DecimalFormat("###,###.00"); JFormattedTextField loanText = new JFormattedTextField(df0);[/CODE] the user puts …

Hi everyone, I'm creating my own OS from scratch, and I'm first producing an installation CD so that I can easily install my kernel on a hard drive. So far, I've written a CD-based bootstrap loader in NASM that finds a program within the root directory of the CD, loads …

Hi everyone I have been given a python code to add some functionality in it. The problem am facing is that the original developer has hard coded 3 variables a,b,c in the code and these variables are before class definition in files: hers is the code snippet: [code] a = …

below is my code about a method regarding arrays. The purpose of my program is to let the user input the length of the array. and then insert numbers into the array, sort the numbers, and let the user search the contents of the array. my problem is i dont …

I know this is probably overly simple but I am terrible with math. This is a section from a game I'm attempting with PyGame. Instead of using pixels for coordinates I have my own render function that uses blocks(actually just cnverts block value to pixels), which are 32x32 pixels, so …

Well, I've been Googling for at least 30 minutes, and looking through past posts about this, but just can't seem to find an answer that works. Basically, I've got a component class that has a single method I'm trying to test out. The entity class has a private array of …

Hi, ^^ I'll be competing for a java programming contest next week and one of the instructions is to "Receive input from the console window (of JCreator)." Thus, programs shouldn't involve any GUI. I've found this very useful tool called Scanner in the java.util package. My self-training was going smoothly …

Hi, I am a computer Science Student having knowledge of basics in C++. I have to make a C++ project (Online airline reservation project). Please guide me how to make such an online project in C++. What all tools i need to use and how much time they will take. …

Ok, well Iam just about done with one of my assignments, but Iam having a problem at the end of it. Iam suppose to find a maximum income of the families income that the user inputs and I have to find the families that make less than 10% of the …

[CODE] bif="bg.jpg" mif="ball.png" import pygame, sys from pygame import * pygame.init() screen=pygame.display.set_mode((420,300),0,32) background=pygame.image.load(bif).convert() mouse_c=pygame.image.load(mif).convert_alpha() while True: for event in pygame.event.get(): if event.type == QUIT: pygame.quit() sys.exit() screen.blit(background, (0,0))[/CODE] [quote=error] Traceback (most recent call last): File "C:/Documents and Settings//Desktop/Programming/PYGAME TEST/pygame.py", line 4, in <module> import pygame, sys File "C:/Documents and Settings//Desktop/Programming/PYGAME …

Hey Guys i was wondering if i could get a bit of help I'm creating a program that contains a number of different sorting methods (insertion, quick, merge) that sort an array of bikes. [CODE] Bike[] bikes = new Bike[13]; bikes[0] = new Bike("Mountain", 160, "Diamond", 6, 18, "Standard", "Hardtail", …

Hello. I going to write fames.xml with my app. I need to know the best way to handle adding a block of XML but not at the end because I need to have the root element at the end. Any ideas. 1.never end it but when I use it add …

I have no idea how C++ works, but I'd like to learn... Is it possible to create java files/programs using C++?

What is the greatest possible range of rand()? I want to make it that of a long signed integer, but my program crashes. Is there another way to get that range?

Hello, everybody! I'm writing a code, which should be able to insert a node to a binary tree where specified. Commands are being loaded from a .txt file. The contents of the .txt file are the following: 1 L 1 2 R 1 3 L 2 6 R 2 4 …

Hey guys I have a method that is calculating a time based two JComboBox selections. I am returning the time as a Date object but it prints the date and time, when I say 'cal.getTime()'. The date is always the same, the format is Thu Jan 01 (time i calculated) …

I am trying to write a program that dynamically increase the size of an array. essentially creating an array inside of an array with array [b]a[/b] storing 100 int pointers. my code is initially having problems on line [code] a[count] = new int [n]; [/code] any tips or pointers as …

Hi! I saw a post on this site that exhibited the same exact problem that I have for a homework assignment and while it was solved, my issue with the homework assignment is different. The C++ program that I wrote asked the user to input information but once you enter …

Hi! My code worked correctly, but now it produces the error message. It seems that the command [ICODE]treeModel.reload();[/ICODE] doesn't work anymore. Please explain me what happens? [CODE] private void addOrgFolder() { String[] data = new String[2]; data[0] = text2.getText(); data[1] = text1.getText(); DefaultMutableTreeNode selectedNode = (DefaultMutableTreeNode)SystClasses.TreeEditTest.tree1.getLastSelectedPathComponent(); tableModel.setQueryDontChangeTable("insert ..."); DefaultMutableTreeNode nNode …

Hello everyone, I've used this website many times to help myself based off of others' questions, but now I have a problem of my own that I can not solve. I was assigned the task of creating a stack program in C++ using a linked list. Seems simple enough, but …

I'm making a student database using array based lists. I'm having trouble with making the list size created by the user. I have a for loop there now but once I put it there, I get an error saying aStudent is an undeclared variable and I don't understand why. There …

Hello people. I am writing a program that helps users see if they can afoord monthly costs (tuition and rent). here is the main method: [CODE]import java.io.*; public class UserClass { /** * @param args */ public static void main(String[] args) throws IOException{ Finance fin=new Finance(); fin.liveWithParents(); fin.amountRent(); fin.collegeTuition(); fin.getMonthlyCost(); …

Here is my code: [url]http://pastebin.com/KTR86nzD[/url] This is input.csv: name,age Fred,88 Stella,11 Nellie,99 George,22 Violet,33 Rose,77 Bob,66 Lena,55 Billy,44 It should print the above in this format - Fred is 88 years old Stella is 11 years old Nellie is 99 years old ... Billy is 44 years old. Afterwards, it …

[CODE]public class ReverseArray { //declare an array variable //do not call new yet! int[] array = new int[100]; int a; int[] getCopy = new int[array.length]; /** * Constructor * * Reads in int values and stores them in an array. * The first int in the input is the number …

Hi every body I have about while loops and I just answered Q: a & b plz help me [QUOTE] **Write a program that user while loops to perform the following steps: a)Prompt the user to input two integers: firstNum and secondNum. (firstNum must be less than secondNum.) . b)Output …

Hi! If I run the code shown below from my local machine, where the FTP server is installed, then everything works correctly. However, if I try to run it from some other machine, then the message "Cannot connect to the FTP server!" appears. Settings of my FTP Server are shown …

I'm trying to write a progam that; Contains a function called sumN() which takes an int n as an argument and returns an int which is the sum of all integers between 1 and n. In the main() asks the user: How many values (s)he wants to enter (maximum 50); …

Hi guys, My group is having a software development project for our academics at a university. The software we want to develop is an inventory system which will be installed in a Local Area Network. We have decided to use Visual Studio C# (2005 or higher) as the front-end while …

Can anyone help me improve my source code below? I tried fixing it but apparently, there's not much success. [CODE] #define NUM_THREADS1 1 void *go_to_website2(void *program); void *go_to_website1(void *program) { char* str[3]; str[0] = (char *)program; str[1] = "http://www.google.com"; //supposedly 2nd website to go to str[2] = '\0'; char* new_prog …

Hi everyone, I am trying to get Python working on XAMPP. I'm running Windows Vista, XAMPP version 1.7.1., PHP is working without any problems. I followed the instructions from here: [url]http://www.macouno.com/2010/03/17/getti[/url] ... -on-xampp/ I did everything the same, restarted Apache service, rebooted the PC but still I get the following …

Hello. I have a question regarding a task I was given. It goes : Fill the array with random numbers and then print out how many times theyve appeared like so : [CODE] /* ARRAY : 0 0 0 0 1 1 1 2 2 2 2 2 6 6 …

Hello. Can anyone bring me up to speed to use XML to manage adding and removing tabs from a JTabbedPane? I am adding tabs and I Would like some code or links that could show me how to serialize any changes I make to a JTabbedPane. Thanks

i am trying to build an interface array for my checker class. i have 3 classes: main class, checker class and king class. my interface: [CODE] interface IchecherMove{ bool isMoveValid(IchecherMove[,] checker, int columnStart, int rowStart, int columnEnd, int rowEnd); string FindPiece(); string print(); bool pieceDevour(IchecherMove[,] checker, int columnStart, int rowStart, …