I'm a college student. Now in my android class, my professor told me to build a crypto wallet android app using JAVA for the capstone project and that is all he told me.

With 0 knowledge about blockchain and simple knowledge to build an android app. At first, I think that all I need is to generate a public/private Key and find some library for transactions to make the app work. But I'm wrong after a week of blind dive I find a way to generate keys via JAVA but don't have luck at finding a library with an understanding code sample.

Some of what I find are using node.js for the web, not for JAVA android and then I find this article which is nearly the one I want but it seems to work only for standalone not for transactions between the app.

All I need for this app is the deposit and transfer function that is all I want.

If anyone has any advice or document or tutorial please tell me. Thank you.

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