Suppose that we have a Java Stream that includes the following operation:. map (person -> person.getLastName () )What does this operation do?O It creates a HashMap with the Person object as the key and the last name as the valueO It maps the contents of the stream to an ArrayList called lastNameO It creates a HashMap with the last name as the key and the Person object as the valueO It converts the stream of Person objects to a stream of last names (presumably, Strings)

We are given a Java Stream having the following operation. .map(person -> person.getLastName())…

Suppose that we have a Java Stream that includes the following operation: .map (person -> person.getlastName () ) What does this operation do? O It creates a HashMap with the Person object as the key and the last name as the value It maps the contents of the stream to an ArrayList called lastName It creates a HashMap with the last name as the key and the Person object as the value O It converts the stream of Person objects to a stream of last names (presumably, Strings)

Suppose that we have a Java Stream that includes the following operation: .map (person -> person.getlastName () ) What does this operation do? O It creates a HashMap with the Person object as the key and the last name as the value It maps the contents of the stream to an ArrayList called lastName It creates a HashMap with the last name as the key and the Person object as the value O It converts the stream of Person objects to a stream of last names (presumably, Strings)

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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