I am new to Haskell, and wrote a script to verify credit number.
I did some tests, the script worked, but can it be improved further?
isCreditCardNumber :: String -> Bool
isCreditCardNumber number =
0 == creditCardReminder ( creditCardDouble ( blowupCreditCardNumber ( reverse number)))
blow...
I need to improve the following DB2 queries, I understand DB2 is slow by nature and that the infrastructure is not the most ideal but here's my scenario.
I have to go and grab data from PolicyTransactions table (replacing column names with * for clarity).
SELECT *
FROM PolicyTransactions
WHERE ...
This code outputs an ATM style menu that allows the user to create an account and then perform actions like get balance, withdraw, deposit, etc.
The actions are objects in the account class and the menu screen of the atm is in the main method of the management software.
I have it so the progr...
This is a little assignment I am working on. I am a beginner Java programmer and would love some advice on how to improve this code.
For more context, here are the assignment details:
Create a complete program that has the ability to store and display
integer values in an array. The maxim...
Couple of Model classes are doing the validation using FluentValidator. These model classes are used to Add and Edit the branch data and they are working well but I have no idea how to remove the code smell (duplication).
Problem: Notice the duplicate validations being written in BranchEditMo...
I see a couple of these on codereview but I was hoping my way hasn't yet been encountered:
def is_palindrome_permutation(strng):
cache = set()
for char in strng.lower():
if not char.isalpha():
continue
if char in cache:
cache.remove(char)
e...For some time I have been working on a Singly Linked List class in Python as to understand and master the data structure and now I think the class is finally completed (well most of it)
So I am asking if anyone would please review it and tell me what is wrong and what is inefficient and what sho...
There are several ways to do this. Let's look at the alternatives:
Iterating over a copy, removing from original
This is a simple solution for the underlying problem of your first code: A ConcurrentModificationException is thrown because you iterate through the list and removing from it at the ...
I've written a small php library to connect with Instagram Application. The repository is on github. Here am adding only main class code. Require code review and thoughts on performance and security issues.
namespace Haridarshan\Instagram;
use Haridarshan\Instagram\Exceptions\InstagramExceptio...
I have a one-to-many relationship between two entities: courses and files.
So, the way I set it up my database is to use two separate collections: courses and files.
var CourseSchema = new mongoose.Schema({
name: { type: String, required: true },
code: { type: String, required: true, un...
This is an extension of this question due to it not covering an important role of my setup that I think needs more attention.
The files are stored on a different server for separation and convenience.
I'm using Django for my REST API, and need to find a convenient, elegant and quick way to stor...
I have been trying to write a sample code block to remove multiple backward or forward slashes from a path. E.g. //a//b should be /a/b; on windows c:\a\b\\c should be c:\a\b\c
I am assuming that:
Code must be platform independent
Should work in all cases(or report proper error)
It should be re...
I'm very new to java and am trying to expand on a simple project I did before. So I have this code from a previous coin flip game in java that I built.
import java.util.Random;
`enter code here`public class Coin
{
private String sideUp;
private int hcount;
private int tcount;
private static fi...
