SEARCH KEYWORD -- Samsung Galaxy Note II
Web Design 101: Get Your Color Contrasts Right
Great web design is hard. It requires imagination, a keen eye, and the ability to project ideas onto a, generally digital, medium. In today’s world this calls for a conflation of both artist and technologist. I am not one of these people. I am a technologist, but I am no artist (thankfully I know some great artists!). Nonetheless, I’ve always had a good eye for things that look good and for sites that look like they were built with an early version of Micro...
Web design,Structure,UI,Contrast 2012-02-04 21:42:50
DESIGNERS NEED ENGINEERS
Like so many of you, I’ve been indulging in the amateur analyses all over the web about why Steve Jobs, p.b.o.h., was so great. The recurring message is pithily summarized by Mathew Ingram: “Technology is the least important thing about Apple productsâ€.Bullshit. The reason why Apple manages to build such magnificent products is because design and usability drive the engineering, yet the technology behind their products is by no means trivial. Apple cares a ...
Engineer,Designer,Relationship 2011-10-24 11:54:53
Leaving comments in real life
As a programmer I like to write comments because I know that some future person (often me) is going to need to know something about my code that won't be immediately obvious from reading it. Here's a recent example from my homebrew display's code:// protocol_init: Set up a newly powered-on string of lights. The lights are arranged// in an array wired diagonally starting from the bottom left. For ease of programming// it's better if they are given numbers which correspond to coor...
Comment,Programming,Style,Format,Coding standard 2011-11-15 11:42:19
The tic-tac-toe game with Python
In this tutorial, we will show how to build a tic-tac-toe game with Python. We will use functions,arrays,if statements,while statements, for loops and error handling etc. First, we need to create two functions, the first function will display the borad of the game: def print_board(): for i in range(0,3): for j in range(0,3): print map[2-i][j], if j != 2: print "|", print "" Here we used two for loops to loop through the map, this map is...
Python,Tic-Tac-Toe 2013-07-30 02:49:09
Is 99.8% Secure Secure?
A group of researchers (Arjen Lenstra and collaborators from EPFL Lausanne and James Hughes from Palo Alto) published a study, Ron was wrong Whit is right, of new vulnerabilities of cryptosystems. The New York Times picked up the story. Although Lenstra et al discuss several cryptosystems, their results are particularly relevant to those based on RSA. The title mirrors their conviction that cryptosystems based on a single random element have fewe...
Security,Percentage,Security index 2012-02-27 04:48:06
JavaScript tutorial - Creating time delays
There are two ways of creating time delays with JavaScript. The first is more simple and will simply wait for a specified amount of time before executing a function. The second does the same but will repeatedly execute the function. Note, many browsers have a minimum delay length of between 25 and 75 ms, with some of the fastest browsers having a minimum delay of about 3 ms. If a shorter delay is specified, the actual delay will be the minimum delay length. Even with higher numbers, the delay i...
JavaScript,Time delay,setTimeout,setInterval 2012-04-13 07:17:46
Access control in Java -- doPrivileged
Previously we have introduced how Java performs permission check to protect resource access. What if sometimes we need to give some class the temporary access to some resource which it initially doesn't have? AccessController provides six doPrivileged methods to fulfill this requirement. These six methods have below signatures : static T doPrivileged(PrivilegedAction action)static T doPrivileged(PrivilegedAction action, AccessControlContext context)static T doPrivileged(PrivilegedExceptionA...
JAVA,SECURITY,DOPRIVILEGED 2016-03-08 05:46:42
A simple tutorial about CSS flex property
CSS Flexbox is a layout module that makes it easier to create flexible and responsive layouts in CSS. It provides a simple and powerful way to align elements within a container and distribute space between them. To use flexbox, you need to set the display property of an element to "flex". You can do this by adding the following rule to your CSS: .container { display: flex; } The flex container will now have two main axes: the main axis and the cross axis. By default, the main axis runs horizo...
JUSTIFY-CONTENT,FLEX,CSS 2022-12-25 06:44:34
Mount DD image on Linux
Yesterday, my Raspberry Pi running Arch Linux was not able to boot with error: Kernel Panic, not syncing: no init found. I spent a night on it, but could not find a working solution. The last option is easy: reinstall the system. That is really the last resort, for I do not want to re-setup everything I have done: samba server, Time Machine server, Xunlei Offline Downloader… Unable to mount the SD card The system does not boot, so I need to find a way to get into the file system to identi...
Bytes Matter
I love to profile applications, because I always learn something that surprises me. Initial Profiler Surprise: Client Side Case in point, I was recently profiling our Android application, the Famigo Sandbox. This app sends a lot of data back and forth with our API, as we try to determine which of the apps on your phone are safe for your kids. I always assumed that, if app performance suffered during some of the ...
Byte,Low level,Operation,Importance 2012-02-28 08:07:22
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