Videos
Gas Prices
In the student sample program files for this chapter, you will find a text file named GasPrices.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
4-26-1993:1.086
5-03-1993:1.086
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 is the two-digit month, DD is the two-digit day, and YYYY is the four-digit year. Price is 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 file and perform the following calculations:
Average Price Per Year: Calculate the average price of gas per year, for each year in the file. (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 amount for the lowest price, and the highest price.
List of Prices, Lowest to Highest: Generate a text file that lists the dates and prices, sorted from the lowest price to the highest.
List of Prices, Highest to Lowest: Generate a text file that lists the dates and prices, sorted from the highest price to the lowest.
You can write one program to perform all of these calculations, or you can write different programs, one for each calculation.
Want to see the full answer?
Check out a sample textbook solution
Chapter 9 Solutions
STARTING OUT W/JAVA PLUS ACCESS >IP<
Additional Engineering Textbook Solutions
Thinking Like an Engineer: An Active Learning Approach (4th Edition)
Database Concepts (8th Edition)
Java: An Introduction to Problem Solving and Programming (8th Edition)
Thermodynamics: An Engineering Approach
Modern Database Management
Concepts Of Programming Languages
- 4. def modify_data(x, my_list): X = X + 1 my_list.append(x) print(f"Inside the function: x = {x}, my_list = {my_list}") num = 5 numbers = [1, 2, 3] modify_data(num, numbers) print(f"Outside the function: num = {num}, my_list = {numbers}") Classe Classe that lin Thus, A pro is ref inter Ever dict The The output: Inside the function:? Outside the function:?arrow_forwardpython Tasks 5 • Task 1: Building a Library Management system. Write a Book class and a function to filter books by publication year. • Task 2: Create a Person class with name and age attributes, and calculate the average age of a list of people Task 3: Building a Movie Collection system. Each movie has a title, a genre, and a rating. Write a function to filter movies based on a minimum rating. ⚫ Task 4: Find Young Animals. Create an Animal class with name, species, and age attributes, and track the animals' ages to know which ones are still young. • Task 5(homework): In a store's inventory system, you want to apply discounts to products and filter those with prices above a specified amount. 27/04/1446arrow_forwardOf the five primary components of an information system (hardware, software, data, people, process), which do you think is the most important to the success of a business organization? Part A - Define each primary component of the information system. Part B - Include your perspective on why your selection is most important. Part C - Provide an example from your personal experience to support your answer.arrow_forward
- Management Information Systemsarrow_forwardQ2/find the transfer function C/R for the system shown in the figure Re དarrow_forwardPlease original work select a topic related to architectures or infrastructures (Data Lakehouse Architecture). Discussing how you would implement your chosen topic in a data warehouse project Please cite in text references and add weblinksarrow_forward
- Please original work What topic would be related to architectures or infrastructures. How you would implement your chosen topic in a data warehouse project. Please cite in text references and add weblinksarrow_forwardWhat is cloud computing and why do we use it? Give one of your friends with your answer.arrow_forwardWhat are triggers and how do you invoke them on demand? Give one reference with your answer.arrow_forward
EBK JAVA PROGRAMMINGComputer ScienceISBN:9781337671385Author:FARRELLPublisher:CENGAGE LEARNING - CONSIGNMENT
EBK JAVA PROGRAMMINGComputer ScienceISBN:9781305480537Author:FARRELLPublisher:CENGAGE LEARNING - CONSIGNMENT