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  What Makes A Successful Cryptocurrency?

The cryptocurrency landscape today is a little bit of a maze. There seem to be countless cryptos available — thousands of them, by some estimates — and unless you’re particularly well versed in this technology, it can be difficult to tell what differentiates them. To cut through some of the confusion, we decided to take a closer look at cryptocurrencies. We won’t simply list the most prominent ones, the way so many sites already have. Instead, we’re going to look i...

   BITCOIN,CRYPTOCURRENCY     2020-08-25 05:13:22

  mysql – connection example

Mysql is a database, and to gain access to the data within C++ you will need to be able to “talk” to the database via queries (just like on the mysql command line interface e.g. select * from tablename), the connection process is very similar to the command line interface you will need to supply connection details as in hostname (localhost normally), username, password, database to use and also there are other details that you can pass e.g port number more information can be gained f...

   C++,Database,MySQL,Connection,Example     2011-10-29 00:42:10

  Designing Fun

What is “Fun?”“I’ll know it when I see it.”In 1964, in Jacobellis v. Ohio, the US Supreme Court needed to decide whether the state of Ohio could ban a film it called “obscene”—a concept people understood but were hard-pressed to define. Justice Potter Stewart, in his concurring opinion, wrote: “I shall not today attempt further to define the kinds of material I understand to be embraced within that shorthand description; and perhaps I ...

   Design,Fun,Create,Define,Research     2011-09-19 13:35:12

  Create cron job on CentOS

These two days, I am building a website and deploying it on a VPS server which uses CentOS 5. I don't have cPanel or Plesk for my account, so I need to install and configure everything myself including Apache, PHP, MySQL and FTP server, also today's topic cron job. Since my website has a ranking algorithm to calculate the rankings of each link and update the ranking on database and I need to calculate the rankings every 5 minutes, so I think to use cron jobs. Here are what I have done which may ...

   cron job,crontab,CentOS,linux,php,example     2012-06-11 09:23:45

  Top 10 Tell Tale Signs Your Computer Has a Virus

The true genius of the 'computer' is its ability to make human lives easier. This is only achieved from the ability of running software such as word processing, number crunching with Excel or learning from the worlds largest source of knowledge, via web browsers. Today being connected to the internet is fundamental to leading a productive modern life. While internet is a boon it comes with its own share of problems. As internet users increase so does the instance of com...

   COMPUTER VIRUS, INTERNET SECURITY, DATA SECURITY, ANTIVIRUS, COMPUTER REPAIR     2017-03-19 21:05:12

  Finding selected checkbox items in a JSF dataTable

This is one of those problems that I couldn’t find a complete example for when I needed it, so hopefully this will save somebody else the extra time it took me to piece it together. We frequently need to have data tables in our UI, and allow the user to select a subset of those items for action. In JavaServer Faces, this means having a DataTable, each row having its own checkbox. But when the action is triggered, how to we find which items the user has selected. The first step is to ...

   JavaServer Faces,JSF,Datatable,Checkbox,Example     2012-01-03 03:02:46

  GDC 2012: How Vector Unit made the leap from console to mobile games

Matt Small, creative director at independent developer Vector Unit, thought his small studio would focus on consoles forever when it was working on Hydro Thunder Hurricane for Xbox Live Arcade. But then the smartphone and tablet market picked up, and mobile devices started to offer increasing amounts of processing power. That increase in power opened up new opportunities for the people at Vector Unit, which had years of developing for consoles. So the studio worked with Tegra chipmaker Nv...

   Advice,Game design,Palm,Phone,Change     2012-03-14 13:46:22

  Android and Security

The last year has been a phenomenal one for the Android ecosystem. Device activations grew 250% year-on-year, and the total number of app downloads from Android Market topped 11 billion. As the platform continues to grow, we’re focused on bringing you the best new features and innovations - including in security.Adding a new layer to Android securityToday we’re revealing a service we’ve developed, codenamed Bouncer, which provides automated scanning of Android Market ...

   Android,Security,Android Apps,App market,Bouncer     2012-02-03 08:03:51

  Time-saving tips Linux users should know

As a programmer or system administrator, we have more chances of working on *nix platforms. It's tough experience when first start use *nix as we need to face a black screen without knowing what's behind it. Now, if we can have some resources to rely on, then we will find the beautify of *nix. They are fast, efficient and most importantly sexy. Below are some great tips for helping Linux users get used to Linux. This list is a bit long. So be patient. To get more information on a command mention...

   Linux,Tips     2013-09-03 22:30:48

  How the Go language improves expressiveness without sacrificing runtime performance

This week there was a discussion on the golang-nuts mailing list about an idiomatic way to update a slice of structs. For example, consider this struct representing a set of counters. type E struct { A, B, C, D int } var e = make([]E, 1000) Updating these counters may take the form for i := range e { e[i].A += 1 e[i].B += 2 e[i].C += 3 e[i].D += 4 } Which is good idiomatic Go code. It's pretty fast too BenchmarkManual 500000 ...

   Go,Expressiveness,Performace,Sacrifice     2012-02-12 04:53:55

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