Flexible path9 sections

Java & Spring Backend

Java and Spring Boot interview preparation grounded in real backend work.

A backend-focused Java and Spring preparation path covering language fundamentals, the JVM, collections, concurrency, Spring Boot, web APIs, persistence, security, testing, reliability, and production diagnosis.

Recommended start

Java Language & Object Model

Java execution, values and references, identity and equality, object-oriented design, modern data types, exceptions, and resource ownership.

26 drillsSection 1 of 9

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Learning path

9 active sections / 208 drills

1Java Language & Object ModelRecommended startJava execution, values and references, identity and equality, object-oriented design, modern data types, exceptions, and resource ownership.26 drillsSection 1Open section 2Java Collections, Generics & StreamsCollection choice, hashing, generics, wildcards, lambdas, stream execution, Optional, and practical data transformation.24 drillsSection 2