Given a list of non-empty strings, write a method that returns a Map with a key for every different first letter seen, with the value of all the strings starting with that letter appended with a comma () together in the order they appear in the list. Test case 1: sameFirstLetter (["alice", "bob", "apple", "banana"]) → ("a": "alice, apple", "b": "bob, banana") Test case 2: sameFirstLetter (["after", "all", "this", "time", "always"]) → ("a":"after, all, always", "t": "this, time")

Given a list of non-empty strings, write a method that returns a Map with a key for every different first letter seen, with the value of all the strings starting with that letter appended with a comma () together in the order they appear in the list. Test case 1: sameFirstLetter (["alice", "bob", "apple", "banana"]) → ("a": "alice, apple", "b": "bob, banana") Test case 2: sameFirstLetter (["after", "all", "this", "time", "always"]) → ("a":"after, all, always", "t": "this, time")

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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