Java: Collection Performance Basics Question Benefits of using HashMap? (Click to reveal answer) Answer HashMap offers fast, constant time operations. HashMap's strength is its ability to perform operations like put, get, and containsKey in average constant time, O(1). This makes it ideal for scenarios needing fast retrieval, such as quickly finding product details in a catalog by product ID. Additional NotesBenefits of using HashMap? Track: Java Topic: Collections Focus: Collection Performance Basics Topics: Collection Performance Basics Collections Java