Android Tips and Tricks

IT professionals looking to advance their careers have more options available to them than ever before. With countless online courses and certificate programs, it can be hard deciding what’s worth pursuing and what is not. In this post, we’ll take a look at one of the best-regarded certifications for cloud specialists: AWS certification. Is AWS certification worth it for you? What does it involve and how do you get started? Let’s take a closer look. See also: Is your job safe? Jobs that AI will destroy in the next 10-20 years What is AWS certification? AWS certification stands for “Amazon Web Services” certification. This is a professional IT qualification showing cloud expertise using these specific tools. IT pros can attain one of several certifications offered by Amazon by taking the relevant exam. Exams are held at testing centers located around the world. AWS is the most widely used cloud platform across the net, and one of the most comprehensive. It provides over 175 se...

Credit: Adam Sinicki / Android Authority A Web API is an online “application programming interface” that allows developers to interact with external services. These are the commands that the developer of the service has determined will be used to access certain features of their program. It is referred to as an interface because a good API should have commands that make it intuitive to interact with. An example of this might be if we want to get information about a user from their social media account. That social media platform would likely have a web API for developers to use in order to request that data. Other commonly used APIs handle things like advertising ( AdMob ), machine learning ( ML Kit ), and cloud storage. It’s easy to see how interacting with these types of services could extend the functionality of an app. In fact, the vast majority of successful apps on the Play Store will use at least one web API! In this post, we’ll explore how to use a web API from withi...

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Credit: Adam Sinicki / Android Authority While Java is one of the most in-demand and widely used programming languages in the world, it is not without its detractors. Java is not a particularly beginner-friendly language and it is rife with rigid rules and structures that can be tough to wrap your head around. Then there’s the NullPointerException. Null pointer exception is an “exception” (error) that is particularly common when programming in Java. For a beginner, this is a confusing and daunting message to receive, but it can be just as much of a headache for pros to deal with! In fact, null pointer exceptions are so common and so damning, that they are referred to as “the billion-dollar mistake.” Ouch! In this post, we’re going to unwrap the phrase to discover exactly what it means and what you should do when you encounter a null pointer exception in your own code! What does null pointer exception mean? First, we need to understand precisely what is meant by a pointer a...

5. Exploring Our New Ionic Project In this video, we take a look at the project structure and the files we get after creating a new project with Ionic CLI. Github Repo: https://ift.tt/2Zyn9PM via YouTube https://www.youtube.com/watch?v=Nt37v5eF6pI Android Tips and Tricks working hard to get the latest and useful tips and techniques that help you to solve a problem or improve your productivity.

An array in Java is a type of variable that can store multiple values. It stores these values based on a key that can be used to subsequently look up that information. Arrays can be useful for developers to store, arrange, and retrieve large data sets. Whether you are keeping track of high scores in a computer game, or storing information about clients in a database, an array is often the best choice. Also read:  How to use arrays in Python So, how do you create an array in Java? That all depends on the type of array you want to use! How to create an array in Java The word “array” is defined as a data structure, consisting of a collection of elements. These elements must be identified by at least one “index” or “key.” There are multiple data objects in Java that we could describe as arrays, therefore. We refer to the first as the “Java array.” Though making matters a little more confusing, this is actually most similar to what we would call a “list” in many other programmin...

Credit: Adam Sinicki / Android Authority Error handling – also called exception handling – is a big part of Java , but it’s also one of the more divisive elements. Exception handling allows a developer to anticipate problems that may arise in their code to prevent them from causing issues for users down the line. The reason this can become a nuisance is that some methods in Java will actually force the user to handle exceptions. This is where “try catch” in Java comes into play. What is “try catch” Java? For someone new to programming, it can be hard to understand why you might write code that makes it possible for an error to occur. See also: NullPointerException in Java – Explaining the Billion Dollar Mistake A good example would be the FileNotFoundException . This does exactly what it says on the tin: this exception is “thrown” when Java looks for a particular file and can’t find it. So, what happens if someone is using your app, switches to their file browser, then d...