Do I need to install Java or JDK?

2) Java has a separate installation for development because it is a compiled language . You need a compiler and some supporting files and classes (that is, the JDK) to develop software. But you don’t need that to run Java programs, you just need the Java Runtime Environment.

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Can I download SDK separately?

The Android SDK is composed of modular packages that you can download separately using the Android SDK Manager . For example, when the SDK Tools are updated or a new version of the Android platform is released, you can use the SDK Manager to quickly download them to your environment.13 Mar 2022

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