Software Development Forum

I am trying to create Dijkstra's algorithm for a weighted graph, and have a flaw, I believe, in the implementation of the basic algorithm. It only visits the nearest nodes, checks the edges, but nothing else. Right now, I'm afraid I'm too close to this to see what's going on. …

Hi Experts, i have file called condition_file and the data in this file looks like.... condition_file * K 01 * J 02 * H 03 * I 04 I am using below code to read the file condition_file and place the values into an hash open F, "$condition_file" or die …

Hey everyone, I am working on a win32 project right now and I have a few buttons that I wanted to change how they look so I gave them the BS_OWNERDRAW property and drew them myself. Now sense I am using ownerdraw there is no visual indication of when someoone …

I'm having trouble with this part.My professor wants us to do this, when each button is clicked it 'gathers' the input and calls a sub named Result. I'm guessing we're suppose to use a Sub names Result that will call the other sub procedures. this is what I have so …

hi , i am trying to write code to remove specific word from the text entered by the user do do { Console.WriteLine("enter your text"); input = Console.ReadLine(); text = input.ToLower(); result = text.Replace("remove", ""); Console.WriteLine("Edited text:" +result); } while(text == null); { Console.WriteLine("enter your text"); input = Console.ReadLine(); text …

hi everyone i need your help, i ave a project where by i have to create a simple mortgage calculator. the problem is that i have to create a login frame where it will redirect me to the main frame which is the calculator.Could someone show me how to switch …

write a program that asks the user to enter five test scores. the pogram should display a letter grade for each score and the average test score. write the following function in the program. calc_average-this function should accept five test scores as a argument and return the average of the …

import os import web import traceback import datetime from functools import wraps ### Url mappings urls = [ '/', 'index', ] def addfolderhandler(f,root): u = os.path.join(root,f) u=u.strip("/").strip("\\") ident=u.lstrip("C:/Users/James/Desktop/it").replace("/","SLASH").replace("\\","SLASH").replace(".","DOT").strip() #replace invalid python expressions with valid ones globals()[ident] = "<h1>Directory listing for:%s</h1><hr>"%u+''.join(["<a href="+i+">"+i.lstrip(root)+"</a><br/>" for i in os.listdir(u)])+"<i>Python Server</i>" if ident=="": return try: …

As you know the inventor of the game chess was quite a clever fellow. As the story goes the inventor presented the game to the king and the king was quite pleased. The king asked what the inventor wanted as paym ent. He asked for a grain of cereal for …

I am working on a school project to create a basic, educational game. I started with the amazing code written by cactusbin and revised by Gareth Ress found [Here](http://codereview.stackexchange.com/questions/15873/a-small-bejeweled-like-game-in-pygame/15895#15895) for the basics of a bejeweled style game. The game objective is to match letters of DNA to make correct pairs …

OK my original idea was to create a revision application for android using flashcards that a user could create. the application would provide statistics for how well the person was doing with their revision eg. no of cards correct/incorrect etc. I was then hoping to have an online database where …

import java.util.NoSuchElementException; import java.util.Stack; public class StackList<T> implements SomeList<E>{ /* Comments * only use offer(), poll()/remove, isEmpty(), and size() methods*/ private Stack<T> stack=new Stack<T>(); public StackList(){ Stack<T> stack=new Stack<T>(); stack=stack1; } public void push(T thing){ stack1.push(thing); } @Override public T pop(){ if(this.isEmpty()){throw new StackOverflowError();} return stack1.pop(); } @Override public void …

Hi, i need some help if possible. I designed a software on vb 2012 with a local access 2010 database, it runs ok,it add's delete and changes record's. However when i start the software it deletes the added records on the previous session. the software is designed with the dataset's. …

i have 1 class Multithread, but seems that i have some errors:( #include <process.h> #include <string> using namespace std; class MultiThread { private: void * b; public: void ParameterList(void *c) { b=c; } void Thread(unsigned (__stdcall*) (void *) ) { _beginthreadex(NULL, 0, (__stdcall*) (void *) , b, 0, NULL); } …

I am trying to update with this code Result.updateInt("bank_ac_no",Integer.parseInt(acnotxtfield.getText().trim())); //this is the line I'm getting error. Here is the Trace java.lang.NumberFormatException: For input string: "2737383928291819" at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65) at java.lang.Integer.parseInt(Integer.java:495) at java.lang.Integer.parseInt(Integer.java:527) What's wrong?

Why are some algorithm to solve TSP using dynamic programming can solve up to 10 cities while some can go beyond that...i.e. 10, 100 or more..!! What is the factor that determines the capability of the algortihm to solve more than 10 or less..??

Hi everybody, I'm interested in creating a web crawler, but can't really settle on what I'd like the program to do. It's more of an exercise in the technology, and expanding it to achieve new, great things. I am proficient in Python, so I will naturally be using that language, …

Hi, I do have doubt regarding const declaration in copy constructor. Can anyone let me know why do we need const reference in copy constructor, as we already know reference itself is const pointer.So why we should use const as a prefix in copy constructor. Regards, Mohan

How should I make an entry appended to existing entries instead of overwriting the whole file ? class ReadWriteCustomPathsToDisk(object): """docstring for ReadWriteCustomPathsToDisk""" def __init__(self, modulePath): super(ReadWriteCustomPathsToDisk, self).__init__() self.modulePath = modulePath def _xmlFileLocation(self): xmlFileLocation = os.path.join(os.path.expanduser("~"), "Documents","searchMethod","modules.xml") return xmlFileLocation if os.path.exists(xmlFileLocation): return xmlFileLocation def readXml(self): xmlFile = self._xmlFileLocation() root = etree.parse(xmlFile).getroot() …

Hi i'm trying to study for c programming course midterm and there are few questions i have no idea why the answer is. could anyone describe why the answer comes out like these? #include <stdio.h> int main(){ int i = 3; if (((i+=3)&&(i++>6))||((++i>8)&&(i+=3))) printf("Yes. i is %d",i); else printf("No. i …

Is java a platform Independent language. I think its no? My question is in what respect java is totally platform dependent. Is there any case? Share with Us. I have seen this question. So please reply quickly. Java is probably one of object oriented programming. Does it purely object oriented …

Hello, what is the meaning of System.exit() ? if System.exit(0) = close the program without error But, what is the meaning of System.exit(1) ? Is there is any System.exit(2), System.exit(3), etc ? Thanks you

I'm working on a simple, custom login system where users can make an account and log in. In this system I'm using Sessions to make sure if user is logged in or not. I'm using MVC4 as well with Entity Framework. Right now, I want to make a function where …

I'm trying to create a list stack that implements some interface called SomeList The list stack should only use stack with no links. the itnerface has a number of methods that I would like to implement. So for SomeList I have something like public interface SomeList<T>{public void plus(T something);public E …

(Total Sales) Use a two-dimensional array to solve the following problem: A company has four salespeople (1 to 4) who sell five different products (1 to 5). Once a day, each salesperson passes in a slip for each type of product sold. Each slip contains the following: a) The salesperson …

/* * GUI Electric Bill Program */ package guielectricbill; //import the package to do GUI input/output import javax.swing.*; public class GUIElectricBill { public static void main(String[] args) { // declare variable to store user input String accountNumber, customerName, address; int KWH; double amountDue; // Welcome customer to the Electric Bill …

Can someone please tell me why I keep getting a stack overflow when I try to create nodes in a priority queue? class Node { public int frequency; // data item (key) public char character; // data item public Node leftChild; // this node's left child public Node rightChild; // …

I just discovered that while doing check of the functions available in `os.path` using `dir(os.path)` is not the same as shown by `dir(__import__("os.path", globals={}, locals={}, fromlist=[], level=-1))`, in the later case it is actually showing all the modules of `OS` while I just want to look inside for the modules …

i need to find a min and amx of the table and so far i can do the min of row 1 but nothing after that -------------------------------------------------------------------- |Name | A | B | C | D | E | -------------------------------------------------------------------- | 1 | 1.0 | 2.0 | 3.0 | 4.0 …

http://s8.postimg.org/zbfc0h92t/New_Bitmap_Image.png 'contents' can't be initialized whatever I did, thus I can't declare the type in this class class Window_mgr { public: // location ID for each screen on the window typedef std::vector<Screen>::size_type ScreenIndex; // reset the Screen at the given position to all blanks void clear(ScreenIndex); private: std::vector<Screen> screens{ Screen …

Hi I am creating a quiz in C# and i want to know how to flag a question that the user is unsure about. At the end of the quiz i would like them to review flagged questions. How can i do this? So far i have created the array …

Hello, I have been using StreamWriters for a long and time and it has always worked but now I seem to be getting an Access Denied error while trying to save to the current users Desktop... Dim savePath As String = "C:\Users\Josh\Desktop\EpiPhone\029.csv" Using sw As New StreamWriter(savePath) '...Rest of code... …

I keep getting the error , "control may reach end of non-void function" What am I doing wrong here? I just dont get it right now! I know its something simple and small but I have been here back and forth for about 2 hours wondering what the hell is …

can anyone explain to me what is: 'T', 'L', 'wchar_t', 'LPCWSTR' and 'LPCTSTR'? how can i convert strings\char* to these types? (i understand these isn't a tutorial, but i realy need these introdution) or you can give me just a nice link.

This may be a simple error but however. I was running my simple programs as normal and then when i went back to the program later to copy some code there was an error message highlighted underneath the first brace of my main() function. The error states - error: first …

import random Number = random.randrange(100)+1 Tryz = 1 Attempt = int(raw_input("Please enter the number of attempt you want: ")) Guess = int(raw_input("Please guess the the number: ")) while Attempt != Tryz and Guess != Number: Tryz += 1 if Guess < Number: Guess = int(raw_input("Try a higher number: ")) else: …

Hi, I'm learning python and I'm having a bit of a problem sorting dictionaries. I'm getting dictionaries that look something like this: {'usain': [2, 52], 'tyson': [1, 11], 'carl': [3, 110]} which follows the format {'name': [score,time]}. I want to get a list of the names sorted by the highest …

If I input an arbitrary amount of points [x1,y1].....[xn,yn] into a function I need to somehow return/print the shortest distance between all of the points. I understand how to find the distance between two points (fairly easy and straight forward), but how do I take an arbitrary amount of points …

Hi, How do i debug an eclipse plugin project? When I go to the MANIFEST.MF file- > Testing section - > Launch an Eclipse application in Debug mode,it starts debuggin the worspace code. I havent any breakpoints in the workbench code. how to i avoid this. appreciate a response thanks

No idea how to get my scatter plot to talk to my colorbar. I have taken endless approaches and consulted every forum all to no avail. I am either very close or nowhere near, surly this should only be a one or two liner?? Please help. import matplotlib.colors as cols …

i want to get the value for Accumulation but it returns no value. Any help with resolving it will be appreiated private double getAccumulation(){ double Accumulation = 0; double Monthly_Depreciation; int Estimated_Useful_Life = 5; double Cost_Of_Acquisition = 2000; double Estimated_Residual_Value = 500; try{ Monthly_Depreciation = (Cost_Of_Acquisition - Estimated_Residual_Value)/Estimated_Useful_Life; Accumulation += …

I want to add numbers to an array using scanf What did i do wrong? it says expected an expression on the first { in front of i inside the scanf... void addScores(int a[],int *counter){ int i=0; printf("please enter your score.."); scanf_s("%i", a[*c] = {i}); }//end add scores

The thing that i don t understand here is how can you put a FUNCTION that hasn t yet evaluated into a integer(will evaluate later but at the moment of the recursion it hasn t) into a int variable? Once n equals 0 the int smallResult will get populated but …

Hi all, as much as I don't like the API, it is becoming more and more important for me to start using it. I think I might need a guide of some sort which says what's what and what's where, if anybody has one please let me know. Today I …

#include<iostream> using namespace std; int &fun() { static int x = 10; return x; } int main() { fun() = 30; cout << fun(); return 0; } Output is 30 why not 10? please explain me the concept of Lvalue.. Thank you in advanvce.

In the following example two threads share int counter. The increment_thread thread increases counter by one . The decrement_thread thread decreases counter by one . I use semaphore to control access to counter instead of making the two methods synchronized. Is this the proper way of using semaphore? When should …

hi i have msflexgrid with 4 columns; date, Name, Agent and Amount. Am looking for help on how i can show totals on the amount column to show below the last figure on the amount column.. i will appreciate any suggestion or help thanx

ou have been tasked to write a program that takes two complex number and return theie sum.However the + operator will not worl with complex numbers and you figure you need to verload the + and the assignment opeartor=.Ypu have come across the program (http://wwww.cprogramming.com/tutorial/operator_overloading.html) implement it and the client …

Dear Programmer, I was asked to develop a console programme that reads an integer n and a list of up to 5 divisors (also integers) from the console and computes the sum of all integers up to (but excluding) n which are divisible by any of the five divisors. For …

Hello Professionals out there, i am making a point-of-sales systems in java. And i have a jTable named "tbitempurchase" wherein I add the ordered items using an add button.I also have a table in mysql database named "itemSold". Now my problem goes like this, I want to insert the data …