18. Gas PricesIn the student sample program files for this chapter, you will find a text file namedGas Prices.txt. The file contains the weekly average prices for a gallon of gas in the UnitedStates, beginningon April 5, 1993, and ending on August 26, 2013. Here is an example ofthe first few lines of the file's contents:04-05-1993:1.06804-12-1993:1.07904-19-1993:1.07904-26-1993:1.08605-03-1993:1.086and so on...Each line in the file contains the average price for a gallon of gas on a specific date. Each lineis formatted in the following way:MM-DD-YYYY: Price Chapter 9 Text Processing and More about Wrapper ClassesMM is the two-digit month, DD is the two-digit day, and YYYY is the four-digit year. Pricesthe average price per gallon of gas on the specified date.For this assignment you are to write one or more programs that read the contents of theand perform the following calculations:Average Price Per Year: Calculate the average price of gas per year, for each year in the fie(The file's data starts in April, 1993, and it ends in August, 2013. (For the years 1993 and2013, use only the data that is present for those years.)Average Price Per Month: Calculate the average price for each month in the file.Highest and Lowest Prices Per Year: For each year in the file, determine the date andList of Prices, Lowest to Highest: Generate a text file that lists the dates and prices, soamount for the lowest price, and the highest price.from the lowest price to the highest.List of Prices, Highest to Lowest: Generate a text file that lists the dates and prices, somfrom the highest price to the lowest.You can write one program to perform all of these calculations, or you can write difprograms, one for each calculation.

We have done code in python programming language and we have attached the code and code screenshot…

18. Gas Prices In the student sample program files for this chapter, you will find a text file named Gas Prices.txt. The file contains the weekly average prices for a gallon of gas in the United States, beginning on April 5, 1993, and ending on August 26, 2013. Here is an example of the first few lines of the file's contents: 04-05-1993:1.068 04-12-1993:1.079 04-19-1993:1.079 04-26-1993:1.086 05-03-1993:1.086 and so on... Each line in the file contains the average price for a gallon of gas on a specific date. Each line formatted in the following way: MM-DD-YYYY:Price

18. Gas Prices In the student sample program files for this chapter, you will find a text file named Gas Prices.txt. The file contains the weekly average prices for a gallon of gas in the United States, beginning on April 5, 1993, and ending on August 26, 2013. Here is an example of the first few lines of the file's contents: 04-05-1993:1.068 04-12-1993:1.079 04-19-1993:1.079 04-26-1993:1.086 05-03-1993:1.086 and so on... Each line in the file contains the average price for a gallon of gas on a specific date. Each line formatted in the following way: MM-DD-YYYY:Price

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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Question

18. Gas Prices
In the student sample program files for this chapter, you will find a text file named
Gas Prices.txt. The file contains the weekly average prices for a gallon of gas in the United
States, beginning
on April 5, 1993, and ending on August 26, 2013. Here is an example of
the first few lines of the file's contents:
04-05-1993:1.068
04-12-1993:1.079
04-19-1993:1.079
04-26-1993:1.086
05-03-1993:1.086
and so on...
Each line in the file contains the average price for a gallon of gas on a specific date. Each line
is formatted in the following way:
MM-DD-YYYY: Price

Chapter 9 Text Processing and More about Wrapper Classes
MM is the two-digit month, DD is the two-digit day, and YYYY is the four-digit year. Prices
the average price per gallon of gas on the specified date.
For this assignment you are to write one or more programs that read the contents of the
and perform the following calculations:
Average Price Per Year: Calculate the average price of gas per year, for each year in the fie
(The file's data starts in April, 1993, and it ends in August, 2013. (For the years 1993 and
2013, use only the data that is present for those years.)
Average Price Per Month: Calculate the average price for each month in the file.
Highest and Lowest Prices Per Year: For each year in the file, determine the date and
List of Prices, Lowest to Highest: Generate a text file that lists the dates and prices, so
amount for the lowest price, and the highest price.
from the lowest price to the highest.
List of Prices, Highest to Lowest: Generate a text file that lists the dates and prices, som
from the highest price to the lowest.
You can write one program to perform all of these calculations, or you can write dif
programs, one for each calculation.

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