The term “API” has been generically used to describe connectivity interfaces to an application. The application then interprets that data and presents you with the information you wanted in a readable way. The server then retrieves that data, interprets it, performs the necessary actions, and sends it back to your phone. When you use one of the above apps, they connect to the Internet and send data to a server. Every time you use a rideshare app, send a mobile payment, or change the thermostat temperature from your phone, you’re using an API. APIs are an accessible way to extract and share data within and across organizations.ĪPIs are all around us.
#Java interface tutorial video software#
Many people ask themselves, “What is an API?” API is the acronym for application programming interface - a software intermediary that allows two applications to talk to each other. Note: At a time, a class can implement any number of interfaces simultaneously and can extend only one class.This article was written by Ma-Keba Frye, SEO Content Writer at MuleSoft. It maintains IS-A-Relationship, which also helps make the inheritance and extend between classes possible, thus providing visibility. It has really helped the main framework of applications make them secured and came a lot to become user-friendly. The abstract class consists of both abstract class as well as normal methods or non-abstract classes, but the case is not the same with the interface. Therefore, as mentioned earlier with a real-life example, an interface in java is nothing but a contract between the client-side and service providers. The client-side perspective of expecting a set of services to be delivered to the end-user is known as interface, and from the perspective of service providers, the set of services being offered is known as the interface. If we see a bigger picture of java, then the interface plays a pivotal role in how any service requirement specification is considered an interface. Also, it adds static, public (by default), and final keywords before data members. As an add on it adds public and abstract keywords before the interface method. Note: JAVA SE 8 brings some improvisation in a way that the compiler adds some more keywords before the interface method. As it is most often defined as IS-A-Relationship, it is used to achieve loose coupling.The functionality of the multiple inheritances also becomes supportable.The most important of all is that the application becomes secured as the implementation after making abstract is hidden from the outside world, thus maintaining the security aspects as well.Applications will be enhanced and optimized as well as simplified as its internal implementation is not the concern of the end-user.The first need is to make the application very user-friendly, which can be done by making two different systems communicate via each other smoothly via interface [i.e., making a java application talk with the mainframe systems interface.
There are three main reasons why do we need it. Therefore, it basically comprises of static, abstract, and final methods. However, the main aim of the interface in java is to achieve 100% abstraction by hiding actual implementation to the user and thus making applications a bit user-friendly. Similarly, in Java, Interface also plays the same role it is considered as an interactive medium between the system and the end-user. For example, in our real life, if we consider the interface to be given as an example is the air condition, bike, ATM machine, etc.
The Interface is a medium to interact between user and system devices.
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