Fortunately, that’s pretty easy as Android Studio has already shown us how to do it. Open up MainActivity.java and look for the text that says “Replace with your own action”.

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

Creating and using an SQLite database for data persistence in Android apps. Covers the basics, as well as using foreign keys. Full source included.

Step 4. Resync the Gradle project. Step 5. Select Build Variant from the left side menu in Android Studio. (a) Debug build variant allows to properly debug and profile app during its execution; ...