Software Development Forum

I am having trouble coding an animation for a pendulum simulation. I can never seem to get any of the code right. I tried using pygame, but it didn't work even after I installed it into my computer! I just need to know where to start! Help please!!!

the C++ have virtual functions, but, for me they have 1 problem: on derived class, i must prototype them, for define them on Global Scope. how can i avoid the re-prototype them on derived class? i tried 1 way: template <class Type> class TypeHasToString { // This type won't compile …

why at line 12, the expression : (char*)str+3 , adds the 2nd index to the string? for example when str="123123" , (char*)str+3 is "3123" instead of "123" ? input: 3 0 3 123123 output supposed to be: "Mybcmp result: 0" since the 3 indexes that's compared from b1="123123" and b2="123" …

//Create a random 10 character password with the first character being a upper case letter. The remaining characters are random selections of Upper case //letters, lower case letters, 9 digits and/or special characters (found only on the top row of your keyboard). Please exclude 0 and O's from being used.After …

I am making a user form in Delphi for documents tracking application. I am interested in functionalities **input new entry (record) **and **view list by... (date, name of document, ID,...).** My problem is that I don't know how to implement these functionalities for more than one user. Currently, I have …

Hello, I am writing a simple program. I want to select the date and time, it should appear like this: DAYS HOURS MINUTES SECONDS when the time reached set date my timer must stop like this 0(d) 0(h) 0(m) 0(s) and show Form2. But my timer continues to count from …

Hello, all. I am trying to calculate entropy, and I cannot get the calculations correct, or match the results with the assigned if-statements. I get a number that differentiates a bit from the answer that I want. So far, this is my code: #include <iostream> using namespace std; float Entropy(float …

just as the title says how to compare between memory addresses's contents?, my function will get two memory pointers and i want to compare their first "len" from what they're pointing to i'm getting here invalid use of void * when i compile int my_bcmp (const void *r1, const void …

Here I present a WebSite containing just Default.aspx. Current snippet code has to do with coloring text in an input field of a web page. The input field is an editable DIV HTML element. While the user writes, there is a partial post (an XMLHttpRequest) to the server. Then the …

Dear Friends, Good Day, I am facing an issue in one of the functions the code is given below if someone can help on this actually this function is supposed to check the work ordewr number if it's nulll then it is suppose to take default value as 4999 and …

I am new to XSLT. I am trying to transform one XML document to another. My first step is to try an do a really simple example. I want to see the results to my simple example in a browser, but neither IE7 or Firefox is not returning the results …

Hi guys! i think this is usefull, a lot of the users have problems with .Net Framework installation, Error code: HRESULT 0xc8000222 Do these to solve: a: Click Start > Run. b: Type cmd and press Enter. Please run the following command in the opened window. net stop WuAuServ c: …

There are a number of very old threads on CUDA so I'm starting a new one rather than resurrecting an old one. Does anyone here have any experience setting up and developing in CUDA on a Windows platform? I know that there is a system that can be set up …

ive been develop a project known as ordering system i need to delete data from db by clicking the button ive follow a tutorial from utube and to the exact same code he been used error "object reference not set to an instance of an object" ive double check my …

Hello Members, I have a basic java question about non-terminating float values: public class FloatandDouble { public static void main(String args[]){ float a = 1.0f/3.0f; System.out.println (a); System.out.println (b); } } The output of the program is 0.33333334. Why is it not 0.33333333? Thank you

import java.io.BufferedReader; import java.io.File; import java.io.FileReader; import java.io.IOException; public class DataStreamExample { public static void main(String[] args) throws IOException { File f = new File("seminar.txt"); if (f.exists()) { BufferedReader br = new BufferedReader(new FileReader(f)); String dat; StringBuilder text = new StringBuilder(); while ((dat = br.readLine()) != null) { text.append(dat); } …

Dear Friends, I am facing a problem, I have two forms, Form1 Has one DataGrideview and Button redirect to Form2, which has Button(Browse Excel File) and combobox(Sheet No of excel file) and Button to load Excel file list in Datagrideview , **want to show excel file list in Datagrideview of …

in working with my 2d arrays, i have to read in from an input file a char array of NxN and manipulate the matrix in various ways. i have gotten just about everything finished, except i cannot figure out the logic of shifting a row left or right, or shifting …

Good Morning everyone, My intention is not to get someone to do the whole code to help me but I'm currently learning c++ and I'm working on a homework project to create 10 small programs inside of 1 code and I'm having a hard time doing the last one. It …

I have 300+ files and I am reading it via C program...i am able to compile but what should I pass while executing C program...below is my code...i am bit new to the C ... int i; FILE *in; FILE *out; char ifile[100],ofile[100]; main() { for (i = 0; i …

HI.. i had started a thread before about the same code...not sure if i was suppose to keep going in the same one or create a new thread..i am sorry if i did anything wrong mods... my program should just ask the user to enter words.. "The program must simply …

How we can a make a setup file in vb6 as other software need to install ( Like need a product key to Install )

How we can develop a simple android app to showcase of our products.

Hi Guys, im facing problem at cmd.ExecuteNonQuery() kindly correct me wer is the mistake? n how to correct? Private Sub btnSave_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSave.Click Dim sqlinsert As String ' We use the INSERT statement which tells our program to add the information ' from …

I'm trying to read in from a .txt file with a Scanner (see code). For some reason this line of code will never execute even though it can open the file and there is, in fact, data in it as such: Name Name Number Number [CODE] File playerFile = new …

https://github.com/shivamshekhar/PyGalaxian Please update PyGalaxian file as i want the number of hits by the aeroplane into another file either text file or excel file or jupyter notebook and want to plot using plotly and plotlib library and show the analytics at what rate the hits are occuring after firing and …

import java.util.Scanner; public class Rational { private int numerator; private int denominator; public Rational() { numerator = 1; denominator = 2; } public Rational(int numerator, int denominator) { this.numerator = numerator; this.denominator = denominator; } public int getNumerator() { return numerator; } public void setNumerator(int numerator) { this.numerator = numerator; …

I've looked around this forum, and the rest of the internet, but my code is not working. Here is the problem: I read XML files that are in en-US culture. The decimal separator is a dot ".". Given the string "123.45", I want to convert the separator from a dot, …

I have wriiten a script to switch on buzzer and given the path of that script in '/etc/rc.local'. So after booting my script works and it make the buzzer to switch on... my question is i want to switch the buzzer off when my device is shutdown.(for startup we use …

The following (see the full code below) successfully adds a page in a section in Onenote. What I don't seem to be able to do is to get the lastly created page on top of the section. Here's the code that is puzzling me. onenoteApp.GetHierarchy(sectionId, OneNote.HierarchyScope.hsPages, out string xmlPages); var …

HI guys, as I was playing with observers today I came across something interesting. I have a program which keeps a list of users (Observers) and products (Observables) and the idea is that whenever the availability (that's a property of a product) changes the Observers are notified of this change. …

hi guys, I've come across observers while working ona very very large project, and I didn't quite understand how they were structured and I suppose this had something to do with the huge size of the project itself. Anyway, I then decided to delve a little more into that, I …

How i can get in result this picture: [Click Here](https://imgur.com/a/ddBb6) for now my code is: program cikls; label m; var a:byte; begin write('Ievadiet veselu skaitli:'); readln(a); if a<1 then goto m; repeat writeln(a); a:= a-1; until a = 0; m: readln; end. When i runit it make numbers counting down. …

Hello I want to write a mips program that collects user input, and indicates if the input is all uppercase letters or not. (self.user_2018_2019) submitted just now by user_2018_2019 Write a MIMPS program that collects user input, and indicates if the input is all uppercase letters or not. The program …

I’m new to this and talking an intro class. I’ve read and reread my course material so far and I can’t get this line to work. It has to display You have 2 even and 3 odd numbers but no matter what I do, it keeps coming out with 0 …

hi, im new to vb.net and recently i am doing a web application on sending sms. anyone has got any codes for sending sms using vb.net? or does anyone know where i can get relevant info for it.

I'm working with VB.net 2010. I need an windows form where i can select scanner's connected to my pc and then scan image and save it by a save dialogbox.... Waiting for help.....

I need help on this pyramid (the one on the right)s

I'm trying to convert the following C code to MIPS64 (very new to this): If Im given the addresses: (a @ 100) (b @ 200) (c @ 300) long int a, b, c; // 64-bit ... if (a < b || a == 4) c = 1; else c = …

hello coders, i hope you all are going well, one thing blows my mind today in c i can't explain it this is why title is akward, so the thing is i have an array called tab[n] i wanted to invert it elements from tab[0] to tab[n-1] and and the …

First of, i didn't know where to post this question as it isn't actually programming based but yeah. sorry.. Anyway, I was going through my binary file trying to figure out something for my program and i realized that I didn't know what the 00 sequences actually represent. what are …

I have an Epson receipt printer (Model number: TM-T88V), but I cannot use it. I do not have a POS (point of sale) software that will let me do what I need to do, nor do I have the knowledge I need to understand the developers guide manual that comes …

INGGRIS How to connect device scanner with visual basic, its analogy I made button scan in vb and typing button scan in press scanner live and walk .. how? Help me sir

I have the following problem. when i pres buttun printpreview (button 5) the the print preview fires up. and when i close the print preview without printing and minimize the form (after close the printpreview), and when i maximize the form again the image in the picturebox is turned 90 …

Hi all! I need help understanding what my teacher expects from this project. Here is the link to the instructions for the project: http://cs.ecu.edu/~karl/2530/spr18/Assn/Assn5/assn5.html I wrote a little bit of code but i am stuck and dont know how to move forward This is as far as ive gotten with …

Please tell me by which DOS command, we can protect a file or folder with a password.

Hi all... I've been asked to write a password generator in C for a project. the guidelines are very vague and all I've been told is: Password must be 9-15 characters long at least 2 numbers 2 upper/2 lower case latters 1 symbol and I need to write a dictionary …