First and foremost, I have to point you to NS_REQUIRES_SUPER. This macro should be used with your methods which actually implement some logic. The ones, which if overridden, should be sure to call super, such as viewDidLoad.
Beyond that, I'm not entirely sure I'm satisfied with the design of t...
An idea that was formed from some discussion:
More Effective Closing / Down Voting of Junk Questions to help with the Signal : Noise Ratio?
How about a waiting period for Questions to be Answered:
You have to wait a certain period of time before you can Accept an answer in order to give time f...
Problem statement
The Utopian tree goes through 2 cycles of growth every year. The first growth cycle occurs during the monsoon, when it doubles in height. The second growth cycle occurs during the summer, when its height increases by 1 meter.
Now, a new Utopian tree sapling is planted at the o...
I am searching for solutions on how to capture a backspace event, most Stack Overflow answers are in Objective-C but I need on Swift language.
First I have set delegate for the UITextField and set it to self
self.textField.delegate = self;
Then I know to use shouldChangeCharactersInRange dele...
I wrote a script that reads a file containing a password ("password"), loops each character in that file to see if it matches a character in the alphabet, and when every letter has been found the password is printed.
Wrote in python, here is the code:
def readFile():
file = raw_input("Enter...
How to find the path of each number that returns the largest route
import javax.swing.JOptionPane;
import java.util.Arrays;
class Untitled {
public static void main(String[] args) {
String user_row = JOptionPane.showInputDialog("Please enter a number of rows");
int row = Integer.p...
This Python 3.4 script downloads stock data and puts it into an Excel file.
## Imports/Initiation
# Put a "#" in front of the one you don't want to use.
signs = 'a abc abt ace acn act adbe adi aet afl agn agu aig all alxn amgn amt amzn apa apc apd axp azo ba bac bam bax bbby bdx ben bfb bhi bh...
I developed a script for the company I work for in order to extract data from SAP (CJ74) and analyze the data.
One particular issue I am finding is that for any data sets which have over 1000 lines, it struggles to execute the section of code below, therefore I am searching for answers.
This ...
I am on learning stage of C# , i want to read data from .csv file where columns are seperated by comma(,) and i want to write that data into the webpage for automation testing in Coded UI.
How am i suppose to do that?
You are allocating 1024 bytes for message and never zeroing that data. You are just reading into the same buffer over and over. First pass it reads "hello world" in the second pass you are putting "hexx" in the same starting address resulting in "hexxo world"
As DoxyLover mentions you can null t...
I'm trying to check if a command/string literal exists within a string/buffer.
The const far rom char type is something rather compiler specific, but declares a string literal (saved in ROM).
My code actually does what it has to do, but I'm anxious that (in my embedded system) it might be a littl...
I have a big log file (say 1-3 Gb) which I need to parse, extract data & save it in a CSV file.
Text File Data
* D:40035FC8 wr-long 00000008 \\core0\Global\u4TimeHiCnt 1.000us
* D:40027C5C rd-byte 00 *core0\Global\Ypf_OILL_OilLvlOn 20.342us
* D:400...
What is Coupon Collector's Problem?
In probability theory, the coupon collector's problem describes the "collect all coupons and win" contests. It asks the following question: Suppose that there is an urn of n different coupons, from which coupons are being collected, equally likely, with rep...
For some time it has been bothering me that there is apparently no way to directly initialize variables from input streams (something like int i << std::cin;)
My solution is this:
#include <iostream>
#include <iomanip>
#include <string>
template<class T>
T get(std::istream& in){
T tmp;
...
I recently devised a new algorithm to add two Gray codes. Unfortunately, it is still slower than the naive double-conversion solution and is also slower than Harold's Lucas algorithm (the one in the accepted answer). But well, any new solution to a problem is welcome, right?
// lhs and rhs are e...
In this constructor function I'm assigning everything to the proper variables. For the third parameter it accepts an options argument that contains the optional settings.
To prevent a Cannot read property x of undefined. error I'm always checking this variable by by steps, since the options vari...
I am working on an AB tool in JavaScript using the following:
1) Calculate the Conversion rate based on the conversions divided by the hits.
2) Calculate the Z Score by passing in the control and treatment objects.
3) Determine the confidence of the Z Score with Cumulative Normal Distribution....
I am writing a system for doctors who are regularly visited by patients. Doctor adds each patient's visit to collection/database. Class can save data to xml-file and restore it. Can you give your feedbacks about this code?
// https://github.com/veitsi/jcrf-noweb
import java.util.ArrayList;
impo...
Being pretty new to testing, I was wondering how much of these tests make sense.
restaurants_controller_spec.rb
require 'spec_helper'
describe RestaurantsController do
describe "GET #index" do
before(:each) { get :index }
let(:restaurants) { create_list :restaurant, 5 }
it "po...
I have the following function that is part of a larger Web-API which is hosted on Azure and is querying an SQL Server database that is also hosted on the Azure platform:
[WebMethod]
public string RetrieveUserFriends(string userId)
{
//Ensure there is a user id
if (us...
For this assignment, you will create the pattern of a chess board that
is 8 x 8. Use X and O to represent the squares.
Create the appropriate nested looping structure to output the characters in an 8 x 8 grid on the screen using Console.Write() or
Console.WriteLine() as appropriat...
I am fairly new to the Groovy arena. I recently modified some code to add the following block.
result.processed.each{
def queueEntry = QueueEntry.findById(it.id)<<<START ADD>>>
Set dates = new HashSet<Long>()
def children = QueueEntry.findAllByParent(queueEntry)
for(QueueEntry ...
I have alert dialog spinner,with this alert dialog i am able to select only single item at a time,now how can i select multiple items,i followed so many tutorials..
public class MainActivity extends Activity {
JSONParser jsonParser = new JSONParser();
JSONArray country_list=null;
private static...
Hi Code Review Community!
I have been working on a project to randomly generate a torus made through the use of an adjacency list and disjoint set structure (to be extended to solve the maze later), made from scratch. I think that I have optimized my code pretty well, but may have over-looked so...
I've been going through some RoR exercises and the following was an advanced example of using inject. The result is as intended and while I don't fully understand it(it's a question I'll put to SO instead), the exercise suggests that it can be refactored to be cleaner and more elegant.
To be ho...
So I'm trying to code a navigation scroll bar like that looks like this:
This is the code:
<!DOCTYPE html>
<html>
<head>
<style>
ul {
list-style-type: none;
margin: 0;
padding: 0;
overflow: hidden;
}
li {
float: left;
}
a:link, a:visited {
display: block;
width:...
I was just coding for fun and decided to write a doubly linked list.
public class LinkedList<T> : IEnumerable<T>
{
class Node
{
public T Item { get; set; }
public Node Next { get; set; }
public Node Previous { get; set; }
}
private Node first;
private...
I’ve written an implementation for The Grid Search challenge on HackerRank.
Please let me know of any improvements that can be made to my implementation.
P.S: My implementation is a brute force algorithm, and I reckon that there's a much better way of solving this problem. But, as the grid is u...
I am going through the CodingBat exercises for Java. I got to this problem:
Return a version of the given string, where for every star (*) in the string the star and the chars immediately to its left and right are gone. So "ab*cd" yields "ad" and "ab**cd" also yields "ad".
I decided to sol...
As I am a totally self-taught 'person writing code', I decided to learn algorithms with one online course that taught them using Java for demonstrative purposes. The first topic I covered is the graph data structure and API.
I undertook to rewrite Java examples into PHP for training purposes. I ...
