Code Review newsletter

Top new questions this week:

Blackjack Strategy

I am creating a Blackjack simulator in Java in order to better understand the language. I have written the basic strategy section for a player and it is terribly long. Is there a better way to do …

java beginner game playing-cards

asked by user2926358 16 votes answered by Pimgd 14 votes

Python - Minesweeper

I'm new to Python (and generally to programming), and I have recently written this Minesweeper game: import random import string import os class Square(object): """Represent a square in the cell. …

python beginner game python-2.7

asked by ThatBoredPenguin 14 votes answered by mleyfman 2 votes

Check a string to see if it is a palindrome

I have written two code pieces of to find if a given string is a palindrome: public static bool FirstMethod(string str) { int i = 0; int j = str.Length - 1; while (i<j) { …

c# palindrome comparative-review

asked by kyle 13 votes answered by ckuhn203 17 votes

Simple random number generator

I have been wanting to learn programming for some time now and decided to really give it a shot today. I have edited and read lots of things in Java to fix small issues but never written from scratch. …

python beginner python-2.7 random

asked by Dzzs 13 votes answered by paritosh 11 votes

How is my CMS design? Any security, design, or other issues?

I am trying to learn PHP in depth by creating this personal CMS. I try to utilize OOP concepts and do best I can... The way I am trying to design this CMS is to keep including 'modules' within a page …

php oop design-patterns security

asked by HelpNeeder 13 votes answered by shudder 8 votes

A flashing ! exclamation ! point ! bar

I have this Objective-C code for use in an iOS app that makes a 'bar' on the screen, with a red exclamation mark that flashes in it at random places. Here's what it looks like: Header file: …

objective-c ios animation graphics

asked by Undo 12 votes answered by bazola 12 votes

Unit Testing for isPrime function

I've decided that I want to take a stab at test first programming. So, before I tackled writing an isPrime function, I wrote this unit test. It's my first and I'm not sure I'm doing this right. I was …

c# unit-testing primes

asked by ckuhn203 12 votes answered by mjolka 8 votes

Greatest hits from previous weeks:

Remove-Last-Comma-Problem

is there a more elegant way to solve this problem? List<String> paramList = new ArrayList<String>( ); paramList.add( "param1" ); paramList.add( "param2" ); StringBuilder result = new …

java strings

asked by Jonas 58 votes answered by Adeel Zafar Soomro 56 votes

Why is my C# program slower than my Python program?

I made a program in Python and wanted it to be faster, so I wrote it on C# because it's compiled. To my surprise, the Python program is much faster. I guess there is something wrong with my C# code, …

c# python optimization performance

asked by bobpal 17 votes answered by Mat's Mug 17 votes

Can you answer these?

Factorial using trampolines

I've translated this Java code into Delphi code: unit Trampoline; interface type ITrampoline<T> = interface function Get: T; function Run: ITrampoline<T>; function …

optimization recursion delphi

asked by Johan 3 votes

C++ Wrapper for SAFEARRAY

Here is a C++ wrapper for SAFEARRAY, including the ability to expose it as a VARIANT, and to create one out of VARIANT. I am aware of CComSafeArray, however i don't use VC++ so I do not have …

c++ com

asked by Matt McNabb 2 votes

Brainfuck interpreter in JavaScript, take 2

The previous version is here. This version takes suggestions from that review into account: brainfuck is now an object instead of a function, and brainfuck.run(source) kicks off the interpreter. …

javascript brainfuck interpreter

asked by Dagg 7 votes