Free email course

Say goodbye to coding confusion. Our email course takes you on an enlightening journey through the SOLID principles to boost your Java expertise.


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Structured format

Gain a deep understanding of SOLID principles and how they apply to Java programming.

Before, after in Java

Leverage real-world examples. In each lesson you learn how to refactor specific piece of code to SOLID.

Strong foundations

Step-by-step lessons will help you get your software crafstmanship on the road. Ready and implement!

Jarosław Michalik

About the author

Google Developer Expert in Kotlin, conference speaker & educator.

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