I thought a singleton set manager is better than a global set. So I wrote a singleton set manager class C.
Minimal requirement of the class C
must have insert() to insert a new item(int)
must have has() to check if it has the item
should be a singleton
Questions
I wonder this is a good sin...
When I'm checking some conditions to return one of a small handful of values, I often end up nesting several ternary conditional operators (?:) rather than using a series of if..elseif statements.
As a simple example of this, presume I have:
public enum StringValueType
{
Null,...
Introduction
If you know what FDF files are, you can skip this section.
PDF files sometimes includes form fields. These fields can be represented as FDF in plain text form, extracted using certain utilities. Important things to note about this file are:
A field is represented by
/V ()
/T (Fie...
I have some Raw Images files(Raw8 or Raw10 or Raw12 or Raw14 or Raw16...). I want to convert Raw to bmp.
The code runs but I still have some issues with the results.
public void ReadImage(out byte[] Data, string path, uint Width, uint Height,uint BPP){
byte[] fileData = null;
i...
con.Open();
string query = "UPDATE interior set Name_Arabic=N'" + txtName_Arabic.Text + "',gender='" + CBgender.Text + "',NATIONALITY='" + CBNATIONALITY.Text + "',username='" + txtusername.Text + "',Time='" + txttime.Text + "',clock='" + txtclock.Text + "',note='" + txt_note.Text + "',typ...
I am going through Robert Lafore's Data structures and Algorithms in Java. The code in the book for delete operation on an ordered array looks like this:
public void insert(long value) // put element into array
{
int j;
for(j=0; j<nElems; j++) // find where it goes
if(a[j] >...
I have a thread which periodically executes a task. Something like the following:
std::thread thr;
std::atomic<bool> keepWorking;
void stopThread() {
keepWorking = false;
thr.join();
}
void threadLoop() {
while(keepWorking) {
std::this_thread::sleep_for(std::chrono::seconds(15));
...
Intro
We have some old(in my eyes) software at the place I work at the moment,
Some stuff needs to be done manually, for instance we need to insert a XML file into a Oracle table, which will trigger... stuff
I got annoyed by having to do this manually all the time,
So I decided to automate th...
I made an authentication system for my software (no browser is used) that works like this:
User receives a Key on it's mail after buying the software
User registers account using that key and inputs username, mail, password.
registration.php checks if the format is correct then sends an email w...
Hello.
I'm new to web programming, and writing some web apis to enable users to sync their data between devices.
Is it okay to use singleton pattern to prevent reconnecting the MySQL database on every api call?
<?php
final class MySQLiConnection
{
private static $connection = null;
...
As there is no switch() statement in Python, I used if's. Is there a better approach in a case like the one below?
if update.message:
if update.message.text == "/start":
start(update)
return "ok"
if update.message.text == "/help":
bot_help(up...
I want to perform batch insertion and want to have same number for each row astransactionNumber.
transactionNumber is a unique key
Consider following table that what I want to do :
So I can search reports or transactions by transaction number
public void saveItems(Items items) {
...
I want to filter directories and files by what they start with.
var result = DirectoryList(arguments.path, false, "query",
arguments.filter & "*|" & arguments.filter & "*.*");
I am thinking this covers all scenarios because file sometimes don't have extensions and directories sometimes do...
Some of you might remember my previous implementations of this idea in C++.
The threads can be found here and here.
I tried to implemented the same idea, but this time in python.
A summary of the concept again: The idea is to organize data nicely in a table structure that is fully console-base...
My code tries to solve the wooden snake chain puzzle:
I do so by generating all possible link configurations which are then tested. I was hoping that laziness would take care of the very many configurations. But it seems that I was wrong. While the program runs for smaller chains (cf. lengths'...
Here is an initial attempt at unit test of user input in c. The thing that feels unusual is the use of freopen to send the test data to stdin. Are there better ways to implement this kind of test?
#include <stdio.h>
#include <stdlib.h>
#include <assert.h>
static size_t get_num(size_t tmpnum)...
public class Program
{
public static void main(String[] args) {
int num = 0;
for(int i = 1; i< 100;i++){
if(num == i % 3){
System.out.println("fizz");
}
else if(num == i % 5){
System.out.println("buzz");
}
else if(num == i % 15){
System.out.println("fiz...
This is considered as my second python project, I made the password generator where user has to input length of password minimum 5.
I made the code that it will guarantee at least one lowers case, one upper case and one special character is included in the password.
please review and comment.
...
I'm (very) new to writing unit tests and I'm wondering how I should approach testing a static method that constructs our API endpoints based on what the properties are set to in our environment.ts file.
The environment.ts file changes with the environment, so I'm curious how I would accommodate ...
When you only want a couple styles from a workbook but not all of them it's easier to merge styles then remove those you don't want.
How can I improve the form or the backing code?
Userform with styles listed.
'CustomStyleRemoverForm
Private Sub UserForm_Initialize()
ListStyles
End Su...
Project Wonderful is no more. ☹ As a little project, I've been trying to (slowly) re-implement the service. Here's my implementation of the Infinite Auction. The main function is run_auction; you feed it Bids and it'll tell you when you need to change what ad is showing and how much to deduct fro...
I'm new learning python and image processing with python. For this reason, I took a project called "Classification of breast cancer images with deep learning".
Data set consists of tif extension image: benign, inSitu, invasive and normal
I applied the following techniques: 1)Threshold, 2)K-Mea...
My code takes two .jpg files (two selfies) and extracts a vector of 128 features from each selfie.
After this extraction we take these two vectors and get their cosine distance.
I timed the script and it takes 1.6s to load the models and 2.2s to extract the 128 features from the selfies.
The tim...
I want to create a class which can write some data to excel file, and can read from excel file some data. What is a right way to do it? Or better create two classes?
I'm trying something like this, but I think there is a better way to do it.
class ExcelConnector:
def __init__(self, data=Non...
