Question 9 What would be the content of the ArrayList list after the given lines of code ArrayList lists = new ArrayList(); lists.add('a'); lists.add('b'); lists.remove(1); lists.add(1,'f'); lists.add(0, 'g'); | answer:

Question 9 What would be the content of the ArrayList list after the given lines of code ArrayList lists = new ArrayList(); lists.add('a'); lists.add('b'); lists.remove(1); lists.add(1,'f'); lists.add(0, 'g'); | answer:

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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Concept explainers

Map

A map is defined as the name of a higher-order function in most of the programming languages that applies a given function to each element of a functor, such as a list, and returns a list of results in the same order. A map is also called the collection of values based on a key, i.e. a key and value pair. A map has its own set of keys. Duplicate keys are not permitted in the Map, although duplicate values are permitted. Because a Map cannot be navigated, it must be converted to a Set using the keySet() or entrySet() methods. For key-value association mapping, such as dictionaries, maps are ideal.

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