Asked by elena ustimchuk on May 13, 2024
Verified
If you want a class that implements the Map interface and do not need any methods beyond those in the Map interface,you can use the ____________ class.
A) Vector< T >
B) AbstractMap< K,V >
C) HashMap< K,V >
D) HashSet< T >
Map Interface
An interface in Java that represents a collection of key-value pairs, where each key is unique.
AbstractMap< K,V >
A superclass in Java's collection framework that provides a skeletal implementation of the Map interface.
- Recognize and differentiate between the various Java Collection interfaces and classes, such as List, Set, Map, Vector, LinkedList, HashSet, TreeSet, and their usage scenarios.
Verified Answer
LG
Laura GonzálezMay 18, 2024
Final Answer :
C
Explanation :
HashMap< K,V > is a class that implements the Map interface directly and provides all the functionalities defined in the Map interface without adding any extra methods beyond those. It is commonly used for storing key-value pairs.
Learning Objectives
- Recognize and differentiate between the various Java Collection interfaces and classes, such as List, Set, Map, Vector, LinkedList, HashSet, TreeSet, and their usage scenarios.
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