How to write algorithms in object-oriented languages ​​(Java)?

Question

Java

Until that time, I studied C. Now I want to somehow understand the basics of OOP and learn how to write algorithms for real (!) Programs in Java or other OO languages. What literature is there on this topic?

Answer 1

A strange question, OOP is the concept of building an application architecture, highlighting abstract layers in an application and their connection.
Perhaps I did not understand the question, but this book can help you.
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Answer 2

Read about UML. Not everyone likes it, but it is most like an analogue of the algorithm for an OOP program.