I've just learned the OOP concept of abstraction, and I was wondering if I was implementing it correctly in my code and if you guys can point out any bad practices. Thank you :)!
This is the test1.java which has the main method:
package OOPConcepts;
import java.util.Scanner;
public class test...
I have come up with the following code which behaves like Promise.
The interface that this provides is follows:
promise((resolve,reject)=>{...})
.pipe(functions, errHandler)
where functions is an array of functions that will be applied to the result of the promise. The functions are applied s...
I wrote these lines of rust yesterday. It turns 27 bits from a 32 bit integer into a 3x9 byte array, but my gut feeling is this should be done without having a mutable variable ans.
pub fn u32_to_preformated_vector(image:u32) ->[[u8;9];3] {
let mut ans:[[u8; 9]; 3]= [[0,0,0,0,0,0,0,0,0], [0...
Now that MediaStore.Audio.Media.DATA is deprecated in API 29, how can we update the album art in the mediastore?
My Code
final Uri sArtworkUri = Uri.parse("content://media/external/audio/albumart");
Uri albumArtUri = ContentUris.withAppendedId(sArtworkUri, albumId);
String albumIdColumn = ...
multiple LEFT JOIN to same table
I m using MariaDB 10.1.8
Here is my query:
SELECT
L1.category_id AS step1,
L2.category_id AS step2,
L3.category_id AS step3 ,
L1.title AS title1,
L2.title AS title2,
L3.title AS title3
FROM category AS L1
LEFT JOIN category AS L2...
As you can see here, I wrote the methods public static int romanToArabic(String number) and public static String arabicToRoman(int number) to convert roman numbers to arabic numbers and vice versa.
I now wrote a unit-testing-class to test these methods. It is my first attempt to write a (real) u...
As working on a little private programming challenge, I tried "Rock Paper Scissors" without arrays or if-statements. It works as intended, though, I am sure this can be done a little bit more optimized. Especially in the context of Math/Programming.
What I try to achieve:
Create 2 Players, one...
I've realized that I can re-write
const k = j % 2 === 1 ? counter[j] : 0;
as
const k = j % 2 === 1 && counter[j] || 0;
Is there any advantage in terms of edge cases of using one over the other ?
Do folks have a preference on readability? My thought is that a reasonably experienced js pr...
When Make public is checked, For review has to be checked automatically.
I came up with following code that went for code review. I was asked to reformat with less if statements. I spend 2 hours just to make it working and have no clue how to reformat it.
const [isPublic, setIsPublic] = useS...
Right now I'm studying Java, and as a part of understanding arrays, I've implemented a Tic-Tac-Toe game based on two-dimensional array.
Any suggestions/comments are much appreciated!
Source code will be below, also available in GitHub repo.
Main.java
package TicTacToe;
import java.io.Buffere...
After running my android app, I read in my emulator:
'''
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.my/com.example.my.MainActivity}: java.lang.IllegalStateException: Already attached at
at androidx.fragment.app.FragmentController.attachHost(FragmentControlle...
Hello I am new at this and I recently made a server client program where the client sends "ping" to server and the server responds with "pong". Could you please help me correct it and understand my mistakes cause I am pretty lost. Thank you in advance for any help.
The server code:
#include <u...
I wonder if there's a way to optimize this problem with a loop (in method findPairs) that prints out the Integer pairs so that the numbers from 1 to N and the pair of numbers have a sum less than 50 and have more than 3 common divisors.
public class foo {
static void findPairs(int N) {
...
I've created an application to predict emotions. But I think the application is being over fitted. And I cannot figure out how to solve the overfitting. I'm using a small data set of 107 images spread across 6 emotions.
Train.py
#Adding Seed so that random initialization is consistent
from nump...
1.11 Arranging the derivative of a function
The derivative of any function f (x) at x0 can be estimated according to the following formula:
Write a program that prints three columns of numbers: x, f (x) and the derivative f '(x) for some simple functions, e.g. sin (x) or arctan(x)...
I am trying to add a code to my base template so that on every page of the website it displays whether the user is logged in or logged out. I already do have a log in form and it works fine.
I tried to add the following code to my base template:
# I have the header and navbar blocks before t...
I'm trying to reduce nested JSON data using Haskell and Aeson without creating data/record types.
The following code works, but seems ugly and unreadable.
Any advice on cleaning this up would be great.
Thank you
import GHC.Exts
import Data.Maybe (fromJust)
import Data.Text (Text)
import Data....
I've been writing code for some time but never had the need (or opportunity) to
write C/C++ code. Did a small project to learn some C++ and would appreciate feedback on code, testing, project structure and building.
Project Layout
.
├── CMakeLists.txt
├── src
│ ├── personnummer.cpp
│ └── pe...
I started a simple OOP GUI project with tkinter in python since I've been studying the basics for a while, but i'm not sure if my code is properly structured and following the programming conventions. I haven't finished it yet but the sooner I learn the good practices the better. My goal is to ma...
I am using flask with sqlAlchemy to connect with a postgresql database with two tables
Users table (id, name)
Admissions table (id, userId)
Admissions table with a foreign key (userId) connected to Users(id)
I want to get Users if user.id is found in admissions userId
This is what I am doing...
I finished a short Common Lisp code , it does work, I wanted to post it up and see if there would be a better way of coding this.
I'm learning Common Lisp (my current Window Manger is in Common Lisp so I have plenty of incentive to learn! ) and I decided to also tackle exponential numbers as I'...
