Android OS

➔ Android is an open source mobile operating system.

➔ It is based on the Linux kernel.

➔ It is developed and maintained by Google.

➔ Android offers a highly customizable interface that allows users to deeply personalize their experience through various features.

➔ Google maintains a vast, open and independent ecosystem or network for its hardware, software, libraries, service points and digital app distribution services like the Google Play Store.

Android SDK

➔ Android Software Development Kit is a bundle of software packages, libraries, utilities that help software developers create apps based on Android OS.

➔ The Android SDK or Software Development Kit is essential for creating Android applications.

➔ Although Android is primarily used for mobile devices, it is possible to create applications for TVs or desktops using the Android SDK based on the Android operating system.

➔ Android has a huge online community for exchanging ideas, extensive online tutorials, and regular clear and detailed documentation published by Google for each SDK version.

Java or Kotlin

Java and Kotlin are the most widely used programming language platforms for building Android applications, developers can choose one of them.

Java

➔ Java is the most popular object-oriented programming language in the world.

➔ Java OpenJDK is free and open source and maintained by Oracle.

➔ The original language for Android, widely supported and widely used for Android software development.

➔ Java is a very simple, well-structured, powerful, versatile programming language and can be used to create small to enterprise-level complex software.

➔ The most important thing is that it is very easy for anyone who wants to learn.

Kotlin

➔ Kotlin is a modern, statically typed, general-purpose programming language.

➔ It is becoming the language of choice for Android development day by day.

➔ Google has announced that Kotlin is the preferred language for Android.

➔ Kotlin is concise and expressive, and compared to Java, Kotlin allows developers to write significantly less code to achieve the same functionality.

➔ Kotlin is 100% interoperable with the Java programming language, meaning programmers can use both languages ​​in the same project and seamlessly leverage existing Java libraries and Android APIs.