Box Out of Playing Cards

Welcome to another C tutorial. We will be looking at arrays, discussing what they are, when they are used and their special relationship with the char variable. Let's begin. What Is an Array? Think of an array as a sort of container or like... a buffer. They allow us to be a ...more

If you ever need to make calls and/or send texts to the U.S. or Canada from abroad, or even just receive them from those locations, there's an easy way to do so without breaking the bank. In fact, it's free, and all you need is a smartphone, computer, and some free tools. A l ...more

Welcome back, my budding hackers! As I have mentioned many times throughout this series, knowing a bit of digital forensics might keep you out of a lot of trouble. In addition, digital forensics is a burgeoning and high paying career. Some knowledge and certifications in this ...more

Welcome back Hackers\Newbies! Hey guys first of all I would like to explain my absence here in NullByte. I got a little "occupied" with "other things". When I got back, I saw all these HowTo's, articles, Help Questions, I decided, I need to share more of what I have, to you g ...more

This is second post in my series of posts for finding hacked accounts online. Please do read the part 1 of the post at http://null-byte.wonderhowto.com/how-to/find-hacked-accounts-online-part-1-0164611/ In this post we will explore more about finding hacked accounts online, w ...more

When it comes to automation apps on Android, Tasker is still the king of the hill. For a price of $2.99 on the Google Play Store, it's a great buy for any would-be tinkerer that would like to get into automating actions on their Android device. Then, when you consider that the ...more

All of Apple's products are praised for being extremely easy to use. So much so, that your grandma can pick one up and be a "pro" within a few hours. However, this isn't necessarily a good thing for us real power users who want more granular control of our devices. Luckily, M ...more

Ask ten different people how they feel about boxed cake mixes, and you'll likely get ten different answers. Some baking purists will berate them and throw them in the same category as garlic presses and knife sets sold on infomercials. Many people will say that they prefer not ...more

Deep down at the core of Android lies the system kernel, which serves as a bridge between software and hardware. Custom kernels can be installed in place of the stock offering, and these are generally optimized for better performance or increased battery efficiency. If you've ...more

Soda bread, corned beef and cabbage, and colcannon are all great dishes to serve up on St. Patrick's Day, but desserts really let your inner leprechaun come out to play. Not only can you have fun incorporating all kinds of tasty Irish liquors into baked goods, you get to dye t ...more

Google inconspicuously announced an Android update yesterday, and while it's not quite the overhaul that the initial Lollipop release was, version 5.1 brings plenty of bug fixes and new features. This new version is currently on a staged rollout for Nexus devices, so the upda ...more

Injustice: Gods Among Us is one of the most popular games to come out over the last couple of years. It was a hit on video game consoles, and it's got a solid 4.5 rating on both Google Play and the iOS App Store, with almost 2 million people rating the game combined. The game ...more

The first few times I posted on some of the Android forums out there, I asked things like "Does anybody how I can make my phone do this or that?" Without fail, the responses to these types of questions were always one word—Tasker. If you're not familiar with it, Tasker is an ...more

Many modern Android devices use a display technology called AMOLED. These screens differ from traditional LCD displays in that each pixel emits its own light, so a backlight is not required. Even better, when rendering a black element on the screen, AMOLED displays simply don' ...more

Sitting in a cubicle and never seeing sunlight during the workday is unpleasant to even think about—and sitting in a flourescent-light cube can have terrible effects on both our work performance and overall attitude. Yet there are ways to counteract the effects of cubicle sitt ...more

When it comes to getting your computer and smartphone to work well together, there's no service more robust and capable than AirDroid. For years, it's been the go-to tool for users looking to transfer files between their devices or access contact lists and call logs from their ...more

Android is all about customization: "Be together. Not the same," as Google's latest ads for the platform put it. Changing your device's boot animation, for instance, is one of the many great ways you can add a touch of personal flair. Up until now, though, boot animation mods ...more

The new Nexus 6 and Nexus 9 models will be shipping with Android 5.0 Lollipop preinstalled, and the Nexus 4, 5, 7, and 10 will be getting the new OS update from Google very soon. But where does that leave the rest of us? All non-Nexus devices running versions of KitKat will h ...more

It didn't take long at all for developer Chainfire to sort out a root method for the new Android 5.0 Lollipop. After handling a few issues with changes to the SELinux kernel module, Chainfire pushed out an update to his popular SuperSU root app. Nexus Root Toolkit developer W ...more

Apple Pay has been available to use in stores, as well as in select apps and websites, ever since its first appearance in iOS 8.1. Now, with iOS 12, there are currently 13 different iPhone models that support Apple Pay functionality without the use of an Apple Watch, and the l ...more

Getting a new phone is exciting, but having access to its exclusive apps ahead of its release is what we're all about here on Gadget Hacks. If you have a Galaxy Note 3, you've probably only had it for a year or less, so upgrading to the Note 4 may not be a viable option when ...more

When a Houston mom got tired of her kids seemingly refusing to return her calls, she decided that she'd take action. Sharon Standifird's vision was to create an app that would somehow force children to get into contact with their parents. Having no experience with app developm ...more

One of the best features of Android is the fact that it's open-source, giving developers the ability to use it on pretty much any device they can think of, like on a Windows PC using Andy. That's what drove the creators behind the Android-x86 project to port over the mobile OS ...more

Android's permissions system is simple, transparent, and straightforward. When installing an app, you get a chance to review all of the permissions that the app has requested. These can range from accessing your location data to holding a "wakelock" in order to prevent your ph ...more

The build.prop file in an Android device is home to many system-level values and settings. Everything from screen density to video recording quality is covered in this file, and people have been editing these entries to get new functionality and better performance since Androi ...more

With all of the personal data that's stored on our smartphones, it's of vital importance that we have some sort of lock screen security enabled. One of the Galaxy S5's killer features is obviously the fingerprint scanner. It makes the process of dealing with a secure lock scre ...more

Android uses a set of permissions that apps can request to perform certain actions, and you're notified of these permissions each time you install an app. The problem here is the fact that you aren't given any built-in way to deny apps these permissions (although Danny just sh ...more

This year's I/O was all about bringing Android into the future and onto new devices. On top of announcing the upcoming "L" release of its mobile OS, Google showcased Android Wear, Android Auto, and Android TV. With a unified design language and notification mirroring, the var ...more

The Nexus line of devices consistently offer the most bang for your buck. It's why many of us purchased a Nexus 5—at a $350 entry price, it's half the cost of any other phone with similar specs. Google manages to sell these devices at that insanely low price point by cutting ...more

Multitasking has always been one of Android's strengths relative to other mobile operating systems. As the first cell phone OS with "true" multitasking, Android's been ahead of the game in this department for quite some time. To stay on top of the heap, though, further innova ...more

Back in August, Google introduced Android Device Manager. This new service allowed you to locate, lock, or wipe a lost or stolen Android device from either a companion app or a web interface. Effectively, this is the "kill switch" that legislators are clamoring for. So, as ow ...more

When OS X Yosemite was first announced, there were a number of features that struck my attention, but one in particular that stood out above them all was the ability to make and receive texts and phone calls from your Mac, which Apple calls Continuity. I probably use iMessage ...more

The camera situation on the all new HTC One is a little daunting. The M8 has not one, not two, but three camera lenses built in. First, there's the 5 megapixel selfie machine up front, then around back, there's the new Duo Camera with a refined UltraPixel sensor. HTC has done ...more

Having a dust- and water-resistant phone is truly useful, but it comes with a price. In order to achieve this functionality, Samsung had to literally plug up any holes in the Galaxy S5, and this included the charging port. The small cover that keeps dust and water at bay, and ...more

Apple just unveiled iOS 8 at the Worldwide Developer's Conference, and it has a lot of exciting features to play around with. Unfortunately, it won't be available to the public until this coming fall—but that doesn't mean you can't get it right now. There is a way to get iOS ...more

Sony has been hard at work refining its Xperia line of flagship phones. With a 6-month release cycle, they've managed to slim bezels, increase viewing angles, and boost processing power in the 1.5-year span between the original Xperia Z and the Z2. They've also been hard at w ...more

If you've ever used the automation app Tasker, then you know exactly how powerful the tool can be. If you haven't, suffice it to say that there's virtually nothing on your Android phone that Tasker can't automatically do for you. If you're looking to save some battery life on ...more

One feature of Samsung devices that's less useful than I had expected is S Voice, the voice assistant that ships with all new Galaxy devices. The voice is annoying, the features are lacking, and it's an all around subpar product. With Google Now, Siri, and now Microsoft's Cort ...more

HTC's recent release of a new flagship phone brought tons of fanfare along with it. Dubbed The All New HTC One, the M8 edition of the popular One series phone also marked an update to the HTC Sense UI. Manufacturer skins like Sense can be a bit of a polarizing subject, especia ...more

LastPass is a password manager that's been around for some time, and has finally made its way over to Android for use with apps, not just websites. Just imagine logging into your banking app without having to input that password every single time. Much more convenient, and as ...more

Apps that have no business accessing the internet can share your location, device ID, and other personal information with potentially malicious data snatchers. If you're connected to the internet on your Nexus 7 tablet, you're a potential target for cyber threats. For instanc ...more

Currently, all Nexus tablets running Jelly Bean or higher can enjoy multiple user accounts. With tablets often migrating between various people in the same household, there’s no reason for Dad’s finances to mingle with little Tammy’s candy crushing. Multiple users, each with s ...more

KitKats? Toast? Sorry if that headline made you hungry, but no I'm not talking about Nestlé's chocolatey wafer treat, nor the crunchy slices of bread you have with your eggs in the morning. If you haven't caught on by now, Android names each major release after some sort of c ...more

Smartphone users these days can get bombarded with texts and emails every hour. Online retailers sending you coupons to get you to buy stuff. Girlfriends asking where you are. Service providers reminding you to pay your bills on time. You probably don't need to read or respon ...more

When life gets boring, you change it up. A little tweak in your schedule goes a long way in making your existence fresh again, and it could be anything from putting on deodorant to seeing a movie with someone you don't know. The more flexible you are in life, the more dynamic ...more

For new Android users, rooting an Android phone can often be an intimidating process, especially since there are so many different ways to gain root access, depending on your model and firmware version. I've previously covered a way of doing it for the AT&T version of the Sam ...more

If you're a self-described multitasker, Samsung has a feature that's perfect for you called Multi-Window, which lets you display two apps on your Galaxy S4's screen simultaneously. You can browse the day's news while doing a sudoku, take notes while watching a YouTube video, ...more

One of the most heated topics in the Android community now (and probably forever) is stock Android, with lots of users requesting the ability to use it rather than the manufacturer's skin. That's why Google has been offering phones like the HTC One, Samsung Galaxy S4, and Mot ...more

Update: The installation process for Xposed Installer is now dead simple—check out our updated guide! Xposed is a framework created by XDA developer rovo89, which allows the end user to customize their stock or custom ROM without having to modify any system applications or fi ...more

Russians are well known for their knack at documenting exciting and horribly beautiful events on the go, from insane car accidents to attempted insurance fraud and even a superbolide meteor streaking across the sky. Videos like these aren't limited to just Russia—dashcams are ...more

If you're a Twitter user, it's a safe bet to assume that you've used a hashtag. On all social networking sites that have the capability, such as Instagram, Facebook, and Google+, the pound (#) symbol is used to mark and designate specific keywords or topics in order to make it ...more

In the past, we've shown you how to install CyanogenMod 10.1 on your Nexus 7, but that version was based off of the older Android 4.2 Jelly Bean. If you want to stay current, the newer CyanogenMod 10.2 is out in the nightly stage, which is based on Android 4.3, and you can get ...more

To really customize your Samsung Galaxy S3, you'll need to be rooted, because most of the coolest mods and hacks require root access. If you haven't rooted yet, you're just barely touching the surface of what your GS3 can do for you. However, if you've never rooted before, it ...more

The first film I saw without any parental supervision was Pokémon: The First Movie. At the time, there wasn't a 5th grader around who didn't know who Pikachu was or what Pokémon was all about. The franchise was one of the most popular video games of all time, right after Mario ...more

One thing that gets overlooked on Facebook is the amount of videos you can watch, and I'm not just talking about videos uploaded directly by Facebook users—I mean everything ever shared—YouTube, Vine, Instagram, Vimeo, etc. Sometimes one of those videos is just so good that y ...more

Almost any video you could want is on YouTube for free, including those very high quality 1080p music videos. You just have to put up with a few ads. But what happens if you're going on a trip and won't have any Internet access? How will you enjoy your favorite YouTube vids? ...more

My favorite color is blue, but if everyone I knew said the same thing, I'd probably switch to red—there's nothing cool about uniformity. One place I'm guaranteed to see plenty of my favorite hue is on Facebook. The social network has gone through many redesigns, but its signat ...more

The world of Android gaming is much bigger than what's available in the Google Play Store. If you have a Samsung Galaxy S3 or other Android device—don't just stop there—a hidden treasure of games lies in those boxes of old, dusty game cartridges in your closet. You're already ...more

The iPhone has come a long way in its ten-year lifespan, but one thing still missing from the core user experience is native split-screen support. Sure, the displays on iPhones aren't nearly as large as an iPad's screen — which does offer "Split View" mode out of the box — but ...more

BitTorrent—corporations hate it with a passion, but the people love it. The notorious file-sharing protocol was responsible for 36.8% of all upstream Internet traffic last year, as well as 10.3% of all traffic. Unfortunately, BitTorrent has gotten a bad rap with its role in p ...more