ArrayLists If you need to use arrays in Java that can be resized, then you might opt for the ArrayList. An ArrayList is not as fast, but it will give you more flexibility at runtime.

In 2025, Java continues to be a reliable and well-supported option for mobile app developers, particularly those targeting the Android ecosystem.

Android SDK is used to create android apps and execute command lines. Learn how to install Android Studio and SDK on Windows 11/10.

In addition to the core tools, several libraries can enhance your Android app development experience on Linux: SQLite: An embedded database for storing data locally in Android apps.