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Road map

Topics by level, from the basics to the advanced. Many of them suggest what to study next.

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Tier 1 · Beginner

5 topics

Equality & Hashing2subtopics3questions
Exceptions3subtopics15questions
Java Language BasicsNext: OOP, Strings9subtopics9questions
OOPNext: Equality & Hashing, Exceptions, Collections, JVM & Memory8subtopics12questions
StringsNext: Persistence (JDBC)3subtopics5questions

Tier 2 · Intermediate

6 topics

CollectionsNext: Modern Java10subtopics14questions
JVM & MemoryNext: Serialization & Reflection, Concurrency7subtopics9questions
Modern JavaNext: Design Patterns7subtopics7questions
Persistence (JDBC)Next: Spring1subtopic6questions
Serialization & Reflection3subtopics4questions
Spring2subtopics6questions

Tier 3 · Advanced

2 topics

Concurrency7subtopics13questions
Design Patterns4subtopics11questions

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