Software Development Forum

Hi,i used this example for practicing,supposed to be easy one,but,abit confusing. Can you help to solve and point to mistakes i've done. Postman Pat became bored one night at the postal sorting office and to break the monotony of the nightshift, he carried out the following experiment with a row …

Hi Team, I understand that there are numerous number of Articles with the following Title and I should have gone through them before posting but believe me, I've done it all. Either way, I'm not getting to a solution. Hope I get some help here.. # So Here is the …

when we create a thread like this class Run implements Runnable{ public void run(){ //You code } } class Helloworld{ public static void main(String args[]){ Thread t1=new Thread(new Run()); Thread t2=new Thread(new Run()); } } in above code thread t1 and thread t2 is creating in `main()` method its mean …

well .. i found out that python is easy language prog. for beginner like me .. but at 1rst am looking for some advices from proff. programers and i found some videos by Dr.Andrew N.Harrington from chicago on http://anh.cs.luc.edu/python/hands-on/ ..

Hello I was asked to show relations between data in a graph. For example object0 is related to object1 and object2 object1 is related to object 2 object2 is related to object0 and object1 object3 is related to object 1 then the graph will be as shown here [Click Here](http://postimg.org/image/ewn4i6prh/) …

How can you view the values of the registers in Visual Studio? I think they should appear in the Output section at the bottom of the screen. I'm using Visual Studio 2013 for Desktop.

I have a problem with my vb payroll project. When I click the Edit Button a msg pop-up saying that "Input string was not in a correct format." and when click the Delete button, msg is "Fatal error encountered during command execution." I tried to change the values of @g …

Hello guys, I want to know how to convert the JPG file into the WAD file ? the thing is not common as all. its not about to change extension, I need it to convert it as like "HI tag Converter" or "Decal Converter" or "wally" tec... I just google …

Hello guys, I really need help with this one. Can you please help me create a program in Python that displays information about a rectangle of any size. Input: two mouse clicks for the opposite corners of a rectangle Output: Draw the rectangle. Print the perimeter and area of the …

What's wrong with: def project_to_distance(point_x, point_y, distance): dist_to_origin = math.square_root(point_x ** 2 + point_y ** 2) scale = distance / dist_to_origin temp1= point_x * scale temp2= point_y * scale print temp1, temp2 print project_to_distance(2, 7, 4)

Right now I'm trying to create an oppish translator. That is, after a consonant or several consonants in a row, you add 'op' to those letters. As an example, cow would become copowop or street which would become stropeetop. This is what I have so far: def oppish(phrase): #with this …

**this is the code and it keeps giving me a red line under (z=v2*v1),,please help me finding the mistake :( :( thanks ^_^ #pragma once using std::cout; using std::cin; using std::ostream; using std::istream; class vector{ public: friend ostream& operator<< (ostream&,vector&); friend istream& operator>> (istream&,vector&); friend vector operator*(vector &,vector &); vector(void); …

I am trying to learn C++. I wrote a little calculator using class to see if I can do it and give some practice. The following is the code: [CODE]#include <iostream> using namespace std; class Calculator { float a, b; public: float add(float, float); float subtract(float, float); float multiply(float, float); …

I'm trying to add /home/garrett/bin/libpy/ to my python path so I can import my own libraries, I would also prefer not to overwrite the default python path but rather append my own path to the default. When I try to `echo $PYTHONPATH` or `$PYTHONHOME` I get nothing and even if …

Hi,i used this example for practicing,supposed to be easy one,but,abit confusing. Can you help to solve and point to mistakes i've done. Postman Pat became bored one night at the postal sorting office and to break the monotony of the nightshift, he carried out the following experiment with a row …

I can't see to wrap my head arround the meaning of this error. Its becouse im converting integer functions to character functions. src/dataio.cpp: In function ‘char* getName(char)’: src/dataio.cpp:118:17: error: invalid conversion from ‘char’ to ‘char*’ [-fpermissive] readUser(uid); ^ src/dataio.cpp:60:6: note: initializing argument 1 of ‘void readUser(char*)’ void readUser(char* uid) ///Reads …

Hello I am an absolute begginer and am working on a paint calulator program. I am trying to return the price from the paintformula ex: price = paintFormula(wallArea,price,height,length,width); or paintFormula(wallArea,price,height,length,width);. When I call the method I keep getting errors like: PaintCalculator2.java:33: error: variable price might not have been initialized. import …

Hello After two days of struggling I have come for some help. I have a listview of contact names that I want to search with text added into a textbox. It can either filter these as the text is entered or by a button search ... I haven't got anywhere …

Hello, I got an animation on my form, which is done using the onpaint method and invalidate (with constant updating of the moving object's position ofcourse). Later on, i put a background image on the form and since then im having performance problems with my animation. If im not mistaken …

Hi to all, I have to preview dataset data using printdoc and my code is below. Upon clicking the Preview button the preview dialog displays fine with data. when I close the preview dialog then click the preview button the data is not diplayed. weird behavior to me. what should …

I have a problem with concatenate strings in pyhton. I need to concatenate the string clave and cadena_aleatoria(x) while cadena_inicio is minor than 256. This is my script: Any help? .Thanks! import sys import random x = random.randint(0,9) def cadena_aleatoria(x): cadena = [] cadena.append(x) while len(cadena)<10: x = random.randint(0,9) cadena.append(x) …

Hi I have a code in java to generate a sitemap xml, and to get the last modified date using the following line of code: `oPrint.println(" <lastmod>"+ doc.getLastModified().toString()+"</lastmod>");` The output in the browser when calling the xml file is `<lastmod>23/05/2014 16:48:24 ZE4</lastmod>` which is in "dd/mm/yyyy"format. However, from this link, …

//HI,need help to extract info from text file and display. //Here is my text file called Report.txt 01 09 2014 john 3.4 12.5 9.5 02 09 2014 freddy 3.4 12.5 9.5 03 09 2014 conor 3.4 12.5 9.5 04 09 2014 mike 3.4 12.5 9.5 05 09 2014 john 3.4 …

Hi, I'm new to perl, and need help about comparing 2 columns within 2 different .tsv files. I have search through the forum for some similar case of mine, such as [url]http://www.daniweb.com/software-development/perl/threads/335711[/url], [url]http://www.daniweb.com/software-development/perl/threads/336421[/url] and [url]http://www.daniweb.com/software-development/perl/threads/311399[/url] , I have tried to modified them according to my needs but somehow the final …

Would it possible to get sample build.xml file with imports a properties sheet. Or links to good build file structure and maybe a example of a good file system to maintain? I am dl the ant manual now. Anything that pertains to eclipse and ant would help me get started. …

There are no errors when I compile the program, but when I run it and use the "Enter" or "Clear" buttons, they do not work. ----jGRASP exec: java IncomeTax Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException at IncomeTax.enterJButtonActionPerformed(IncomeTax.java:182) at IncomeTax$1.actionPerformed(IncomeTax.java:125) at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2022) at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2346) at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402) at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259) at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252) at java.awt.Component.processMouseEvent(Component.java:6525) …

First of all, the keylogger that i am developing is not at all for offensive and destructive purposes. :) I am developing a client monitoring application in C#.NET. Keylogging is one of the features in my application. Though i have developed the code for the keylogger, i have not been …

Alright i have written my code to reverse a byte string character by character in-place using a loop. We have to utilize the SIZEOF and OFFSET operands and use indirect addressing, However my issue is that I am still getting the string displayed forward and not in reverse. I think …

In the following program what is `ifstream`? It looks like it might be a Class name making `file_in` an object of that class passing `filename` as an argument but this particular book hasn't touched OOP yet so I wasn't sure. #include <iostream> #include <fstream> using namespace std; int main() { …

I'm almost giving up on this problem. How to convert an integer to it's hexadecimal equivalent. I'm not looking to printout the hexadecimal equivalent of the integer in printf() but for a hexadecimal number.

I am desiging a Form in which I am asking user to enter: Name in Textbox1 ID Card Number in Text2 here i want to code for textbox2 that it accepts only numbers and "-" but don't know how to control. Can anyone help me?

I've built several user/custom controls in the effort of saving space on my UI main screen. Slide in/Sliode out, collapsable controls save a lot of space on the screen for Art/Design programs. My nightmare is that I hit the same wall every time. I can't get a control to activate …

Hi , my friend pass this coding to me , to change it on few things , i try to change it first , to make a while looping ... loop for once but i get error , then change the input from number+letter to letter+number , still got no …

import java.io.*; class ConsoleInput{ public static void main(String ss[]) throws IOException{ InputStreamReader isr=new InputStreamReader(System.in); BufferedReader br=new BufferedReader(isr); char c=' '; System.out.println("Enter Characters And q to Quiet"); do{ c=(char)br.read(); System.out.println(c); }while(c != 'q'); } } in upper code this line `c=(char)br.read();` get string from user at this point user enter some …

One of my C++ books was showing the line `cin.getline(arg, arg)` and later showing `getline(cin, arg)`. Why is the second one not object.function and yet have the object as one of the arguments? What's the difference?

#include "stdafx.h" #include<iostream> #include<fstream> #include<string> #include<vector> using namespace std; struct DATE{ int day; int month; int year; }; struct onDutyRecords{ string name; double sunshine; double rainfall; double midTemp; DATE date; }; onDutyRecords person; int ShowMenu(void); void ListDaysOnDutyOfMet(vector <onDutyRecords> &); void ListAllTheWetDays(vector <onDutyRecords> &); void ListDaysOnDutyOfMet(vector <onDutyRecords> &); void ListAllTheSunnyDays(vector <onDutyRecords> …

Hello every body i have a problem with Scanner class.So my question is that when we use `BufferedReader` or`InputStreamReader` to reading and writing input and output then we use `close()`method to close the stream but in the case of `Scanner` why we do not close the stream this is my …

Hey guys, another one that I got stuck on(Although I passed 4000 points, soon to be on the leader board!:D) ... so here is the idea I have an input array for example {1,2,3,4,5,6,7} and an int number for example 10; so what I have to do is return all …

Does anyone have an idea of how I should make a simple calculator without the case function?

Hi to everybody. I've just started a new project for my company in a touch-screen environment. I started to implement a form that simulates a keyboard without taking the focus in order to write i.e. in notepad. It's possible by overriding the `WndProc(ref Message m)` and refusing the activation on …

Hey guys, I need to produce an output such as {{0,0,0,0,0}{0,0,0,0,0}{0,0,0,0,0}{0,0,0,0,0}{0,0,0,0,0}}; I have no input paramethers so I assume I need to have int[] array= {0,0,0,0,0} and then make 2d array of it? I tried int [][] arrayOfSets = new int[0][25]; int [] a = {0,0,0,0,0}; for(int i=0; i<1;i++){ for(int …

Hi guys, so I started learning Java 2 minutes ago and I have already encountered an error. The error is Error: Could not find or load main class apples.class and I get it after I use the cmd to type java apples.class . Here is the code I compiled to …

Hi everyone. I have a bit confusion about vector. here is my 2 structs <global>and in the main have vector declared. file name is"report.txt" Have file with meteo readings,like • the meteorologist’s name on duty that day (a string of up to 12 characters) • hours of sunshine (double) • …

I'm not understanding why i'm able to read from the file but i can't write to it. The fstream is open in both modes. Once the program finishes i haven't changed the content of the file. Thank you in advance. #include <fstream> #include <string> #include <iostream> int main() { std::string …

I have a project in wich i have to create a program making usae of geotechnology. My program revolves around pilots, paragliders and airbaloons. Basicly it has 3 seperate programs for each category and solves some of the difficulties that come along with it. Any idead for a name and …

Hi I am new to Java/netbeans. I have been working on a school assignment to create a commission calculator. I have it done I believe but, have some errors. Please help. /* * To change this license header, choose License Headers in Project Properties. * To change this template file, …

We have a Zebra QLn420 label printer and I am writing a .Net application to allow the user to scan an item, process it through our system, create a shipping label, then send it in a .ZPL file to the Zebra label printer. Where I'm running into trouble is getting …

Everyone, I have a question... hope you can help me... I have 4 methods and they are expecting to return some value to the caller. MethodA() MethodB() MethodC() MethodD() MethodA() call MethodB() then MethodB() call MethodC() then MethodC() call MethodD() and MethodD() will return something. if the MethodD() return empty …

Hi, I'm having trouble reading a file the way I want it to. /*Textfile.txt*/ ROOM Closet Its too dark, you cant see anything. EXIT out Basement 1 ROOM Basement Its too dark, you need some sort of light to help you see. EXIT enter Closet 1 EXIT up Dinning_Room 1 …

What is the difference between these two classes? In the second one `protected:` looking like it isn't doing anything at all, there's nothing under it umbrella. class Tank { protected: int wheels; public: void setWheels(int newWheels) { wheels = newWheels; } int getWheels() { return wheels; } }; /////////////////////////////////////////////////////////////// class …