I've wrote the following constructor: class ReloadingData<D> { private Function<Optional<IResource>, D> loader; public <U extends D> ReloadingData( Function<? super IResource, Optional<U>> loader, D defaultData) { this.loader = o -> { Opti...

Background Image in Div with Colour Caption that follows ALPHA Hi All, As you can see by this fiddle, https://jsfiddle.net/postcolonialboy/ou5h0wnw/4/ everything is working great, except i would like the blue that is behind the text that is reveal on hover, to cover the entire icon (ie. until w...

I'm trying to write a function that prints a tree by level: Let's say I have this: 3 / \ 5 2 / \ / 1 4 6 It should print this: 3 -> 5 -> 2 -> 1 -> 4 -> 6. Here's my function: It works for all test cases except for this one: 15 1 3 2 5 4 6 7 9 8 11 13 12 10 15 14 , wh...

#include <memory> #include <unordered_map> #include <vector> #include <iostream> using std::cout; using std::endl; using std::unordered_map; using std::shared_ptr; using std::make_shared; using std::string; struct TrieNode { bool isLeaf = false; unsigned int child_num = 0; unordered...

I have a tree processing application where some of the nodes are "executed" in parallel and some in series. I managed to do this but I feel that the solution looks a bit "hacked up" and can be improved on. Need your help on this. I have a JobObject class using which I am build a tree [Serializa...

I am making a game for my computer science class. And what my professor's requirement are: Write a Processing program that draws a triangle in the middle of the window. Rotate the triangle when the left and right arrow keys are pressed using the translate and rotate methods. When the spacebar i...

Trying to learn the factory design pattern, came up with some code based on a Shape Factory (found this example here).Is this implementation the right way to implement the factory pattern? interface Shape{ void draw(); } class Rectangle implements Shape{ @Override public void draw...

I am right now using, Path path = Paths.get("c:\test\test.txt"); byte[] all= Files.readAllBytes(path); The problem with this is that I have to load the entire file in memory. My requirements it to read the file byte by byte, but in a manner like first 4 bytes mean X, next 16 bytes mean Y and u...

FileInputStream fin = new FileInputStream(path); BufferedInputStream bin = new BufferedInputStream(fin); byte[] inputByte1= new byte[500]; byte[] inputByte2= new byte[500]; byte[] inputByte3 =new byte[34]; bin.read(inputByte1); bin.read(inputByte2); bin.read(inputB...

This is the primary module for my APL interpreter. The general idea is motivated by my two stackoverflow questions, but the details I fear are easy to get wrong and I suspect there are a few corners that my eyes simply don't observe critically since they have the authority of having lain in the f...

Take user input as a string and compare it to the contents of a text file. Do comparison only using length() and charAt() methods. *Currently using arrays, shouldn't be using any arrays import java.io.*; import java.util.ArrayList; import java.io.BufferedReader; import java.io.FileReader; im...

I am self studying C++ from Robert Lafore's OOP in C++. I am solving the exercise questions of chapter-3 loop and decisions. For the first question(say X) I've written three different codes using different approaches(y1, y2 nd y3). I want to get feedback over my codes like a teacher is supposed t...

I'm trying to implement a small watchdog timer class in C++ 11 that should call some code when it expires. Watchdog.h: #pragma once #include <thread> #include <atomic> class Watchdog { public: Watchdog(); Watchdog(unsigned int milliseconds, std::function<void()> callback); ~Watchd...

Need a way to test a web crawler. Through together this web server that will replay previously saved pages from a real web server. Headers #include <stdexcept> #include <memory> #include <map> #include <iostream> #include <sstream> #include <fstream> #include <string> #include <algorithm> #inc...

I just wrote a tutorial on MDN regarding how to host your website on Google App Engine, and included a sample website as a starting point/template for beginners so they can download and develop it as they wish. Please review the source code and provide feedback. global.css html, body { margin...

I'm learning C# and MVC. Would greatly appreciate critique on my code written for a simple guessing game using MVC. Here our requirements: Randomly generated number, hidden from the user of the page. The random number, as well as the list of guesses, should be stored in the Session state. Cou...

I need your review and suggestions how to make this code better. I'm just learning recursion and sure that this solution is not ideal. question - Write a function that given an input array of integers with a varying length input integers array, and the desired target_sum, returns the number of ...

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I recently made a Typing game in JavaScript and i would like it to be reviewed so i can become better knowing where did i make mistakes and what should i improve. :) I will paste the code here and leave the CodePen link as well :) Any advice will be welcome :) http://codepen.io/nikola1970/pen/o...

I'm trying to generate some code that will compute ways of arranging people into rooms. In the code, there are $n$ sites labelled $1, ..., n$ , each with $r_i$ rooms available left (as we've already managed to fit some people into our rooms during a previous iteration of the code). We have to f...

I have recently learnt about RAII and exceptions and I have been trying to implement them into my code but I have met an impasse. With this code here what I am trying to do is manage everything that is being created so that there is nothing left over for when the program ends. I have deliberate...

I am self studying C++ from Robert Lafore's OOP in C++. I am solving the first exercise questions of chapter-3 loop and decisions. I've written three different codes using different approaches. I want to get feedback over my codes like a teacher is supposed to give feedback to his student. I want...

Please tell proper indentation and usage of camel-case. #include <iostream> using std::cout; struct Node { int data; Node* next; }; Node* Create(int data){ Node* root=new Node(); root->data=data; root->next=NULL; Node* head=root; return head; } void push_back(int ...

I found another user asking for an application to be written, it sounded simple enough and a good way to "work out" my C# "muscles" and try to get them into a better "shape". I really liked the idea of learning the difference between people's ages so I decided I would code this, I did enlist the...

Its my first attempt to unit-test in Js. Not yet TDD. What I can change? EventsPersistancyService.js: var Q = require('q'); var EventsPersistancyService = { accept: function acceptService(msg) { var worker_id = WorkerCacheService.get('some login'); var app_category = AppCategoryServ...

From SICP Exercise 1.11: A function f is defined by the rule that f(n) = n if n < 3 and f(n) = f(n-1)+2f(n-2)+3f(n-3) if n >= 3 . Write a procedure that computes f by means of a recursive process. Write a procedure that computes f by mea...

The code should ask the user multiple solutions and find the problem with the users phone. The program should be efficient as possible and have a possible of 10 outcomes. I would like some tips on how I can make the code more efficient and meet the task requirements. This is what the task states:...

Private Sub Button2_Click(sender As Object, e As EventArgs) Handles Button2.Click Dim Brow1 As New FolderBrowserDialog Dim Brow2 As FolderBrowserDialog = Brow1 If Brow2.ShowDialog() = Windows.Forms.DialogResult.OK Then Dim a As String = NumericUpDown1.Value ...

I have a Java application that uses a few switch statements to get user information about students and classes. I have three MySQL tables: students student_id | student_name | hometown classes class_id | classname | description student_x_classes student_id | student_name | class_id | classn...

i have interface with 2 functions. This interface is being inherited by an abstract class which implements just 1 of those functions the other 1 is left to be implemented by the derived classes of the abstract class. public interface ICombination { bool Check(IReadOnlyList<int> hand,UsersPro...

While calculating RTT for each packet in Wireshark, it occurs to me that several packets sent may have less corresponding respond packets. For example, as shown in the figure attached to this question, the client sent packet #10 and #11, but will only receive packet #14 as a response. The server ...

I just wrote a basic worker class for this person http://stackoverflow.com/questions/35827459/assigning-a-new-task-to-a-thread-after-the-thread-completes-in-c and I wanted to ask if the code has been written properly, it's supposed to have multi-thread support. Any feedback would be nice. Liv...

ValueError at /chats// invalid literal for int() with base 10: '' Request Method: GET Request URL: http://127.0.0.1:8000/chats// Django Version: 1.8.4 Exception Type: ValueError Exception Value: invalid literal for int() with base 10: '' Exception Location: C:\Users\Rabiya Abdul Jabbar\Anacond...

I have this homework for tomorrow and I'm having trouble with some stuff can anyone please help me with it?!! Implement a class Account with: account number, Client name, and account balance. Use a constructor and the following methods: Deposit: withdraw: interest: display:

I have wrote code that takes an input file text that can be compressed, and should contain ascii values, and then a new file is created with an appended ".lzw" and that file can then be decompressed. I want to know if I can improve this code, e.g. Simplifying buffer read/write bytes using Random...

I couldn't find any other versions of Dijkstra's in Javascript online other than one that used a priority queue and needed a start vertex and end vertex as arguments. So here is my attempt at coding Dijkstra's algorithm in Javascript, I used the Wikipedia pseudocode as a base and the simple exam...

Here's a tic-tac-toe program I wrote in python. How can I improve it(eg. make it more readable) ? class Gameboard(): def __init__(self): self.gameboard = {1:' ' , 2: ' ', 3: ' ', 4:' ', 5:' ', 6:' ', 7:' ', 8:' ', 9:' '} def setPeice(self, user, position, gameboard): gameboard[pos...

I have a Minimum Difference Algo, and I wanted to expand on it by printing the actual elements that were subtracted. I'm just wanting to know if this is the best way to do it? public static int findMinimumDifference(int[] arr) { int minuend = 0; //initialize them here int subtrahen...

//Variabeln werden erstellt int untere_spiel_grenze; int obere_spiel_grenze; float spieler_x; float spieler_y; float ball_x; float ball_y; float ball_geschwindigkeit_x; float ball_geschwindigkeit_y; float spieler_2_x; float spieler_2_y; int runde; int spieler_leben; int spieler_2_leben; i...

I am a beginner in assembly. This program calculates: (Z-Z)+(X-Y) DATA_SEG SEGMENT X DW 2 Y DW 3 Z DW 5 RES1 DW ? RES2 DW ? DATA_SEG ENDS CODE_SEG SEGMENT ASSUME CS:C...

I am using s = raw_input() to read the string but not getting right answer for very large len(s) ? Please help me with that. Thanks. PS :- I thought of using file input but i have to submit this code somewhere online. So I have to use some other approach.

This code simulates a distributed averaging protocol. There is a network of nodes, and at the clicks of a Poisson process: 1/ A random node wakes up 2/ Transmits it's current average to all the nodes it is connected to 3/ These nodes have a coroutine which waits to accept new values and comput...

I am unfamiliar C coding styles and I had an idea to use a function pointer for this given piece of code. Typically, would it be aligned with current C coding style to use function pointers here or keep it as-is and semi-duplicate this little bit of code. Part of function in question: struct no...

i have implemented some sort of the strategy pattern using abstract class and interface : public interface ICombination { void Check(int[] hand, UsersProperties user); void UpdateHand(UsersProperties user, int combinationType, int powerType); } public abstract class ICombinationAnalyzer...

I have the following code which I want to apply on 3 images of the sizes 676x718, 1430x1440, 5576x9444. But the code is too slow even for the 676x718 image. function [Ps,Pd,Pv] = Arii2011_Modified(C11,C12_imag,C12_real,C13_imag,C13_real,C22,C23_imag,C23_real,C33) [Ps,Pd,Pv] = arrayfun(@Arii201...

function getdatabetween($string, $start, $end){ $sp = strpos($string, $start)+strlen($start); $ep = strpos($string, $end)-strlen($start); $data = trim(substr($string, $sp, $ep)); return trim($data); } $dt = "Hello cat bye Hello dog bye"; echo getdatabetween($dt, 'Hello', 'bye'); ...