Java HashMaps in Practice: Revision and Application

Strengthen your understanding and application of hashmap data structures with a focus on counting and aggregation tasks. This course will deepen your comprehension of efficient data access and manipulation using hashmaps.

Java

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4 lessons

20 practices

Less than 4 hours

Course details

Introduction to HashMaps in Java

Preview

Updating Library Catalog Entries

Fix the LibraryCatalog HashMap

Check if a Book Exists in the Library Catalog

Updating and Accessing Elements in a HashMap

Updating Book Titles in a Library Catalog Using HashMap in Java

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Java HashMaps in Practice: Revision and Application

Course details

Turn screen time into skills time

Join the 1M+ learners on CodeSignal

From our community

From our community

Java HashMaps in Practice: Revision and Application

Course details

Unit 15 practices57 min

Unit 25 practices57 min

Unit 35 practices57 min

Unit 45 practices57 min

Turn screen time into skills time

Join the 1M+ learners on CodeSignal

From our community

From our community