If you have downloaded the source code from this book’s companion Web site, you will find a file named USPopulation.txt in the Chapter 07 folder. The file contains the midyear population of the United States, in thousands, during the years 1950 through 1990. The first line in the file contains the population for 1950, the second line contains the population for 1951, and so forth.Write a program that reads the file’s contents into a list. The program should display the following data:• The average annual change in population during the time period• The year with the greatest increase in population during the time period• The year with the smallest increase in population during the time period(You can access the book’s companion Web site at www.pearsonglobaleditions.com/gaddis.)

If you have downloaded the source code from this book’s companion Web site, you will find a file named USPopulation.txt in the Chapter 07 folder. The file contains the midyear population of the United States, in thousands, during the years 1950 through 1990. The first line in the file contains the population for 1950, the second line contains the population for 1951, and so forth.Write a program that reads the file’s contents into a list. The program should display the following data:• The average annual change in population during the time period• The year with the greatest increase in population during the time period• The year with the smallest increase in population during the time period(You can access the book’s companion Web site at www.pearsonglobaleditions.com/gaddis.)

EBK JAVA PROGRAMMING

9th Edition

ISBN:9781337671385

Author:FARRELL

Publisher:FARRELL

Chapter9: Advanced Array Concepts

Section: Chapter Questions

Problem 2PE

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The attached file USPopulation,txt contains the US population in thousands, during the years 1950 through 1990. The first line in the file contains the population for 1950, the second line contains the population for 1951, and so forth. Write a program that reads the file's contents into a list. The program should display the following data: the average annual growth in population during the time period the year with the greatest increase in population during the time period (highest growth rate) the year with the smallest increase in population during the time period (smallest growth rate) 151868 153982 156393 158956 161884 165069 168088 171187 174149 177135 179979 182992 185771 188483 191141 193526 195576 197457 199399 201385 203984 206827 209284 211357 213342 215465 217563 219760 222095 224567 227225 229466 231664 233792 235825 237924 240133 242289 244499 246819 249623
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The function last_words in python takes one parameter, fname, the name of a text file, and returns a list containing the last word from each line of the file. For example, if the file contents are: apples are red bananas are yellow limes are green then the list ["red", "yellow", "green"] should be returned. NOTE: You may assume the file will contain no blank lines. BIG HINT: If line is a string representing a line of text (inside a for loop!), then L = line.split() creates a list of the words in the line. For example: Test Result L = last_words("wordlist1.txt") print(L) ['happy', 'sad', 'angsty', 'euphoric', 'maudlin']
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For this interactive assignment, you will create an application that grades the written portion of the driver’s license exam. The exam has 20 multiple-choice questions. Here are the correct answers: B 2. D 3. A 4. A 5. B 6. A 7. B 8. A 9. C 10. D B 12. C 13. D 14. A 15. D 16. C 17. C 18. B 19. D 20. A Your program should store these correct answers in a list. The program should read the student’s answers for each of the 20 questions from a text file and store the answers in another list. (Create your own answer text file to test the application.) After the student’s answers have been read from the text file, the program should display a message indicating whether the student passed or failed the exam. (A student must correctly answer 15 of the 20 questions to pass the exam.) It should then display the total number of correctly answered questions, the total number of incorrectly answered questions, and a list showing the…