Question

Create a program that creates a sorted list from a data file. The program will prompt the user for the name of the data file.

Create a class object called group that contains a First Name, Last Name, and Age. Your main() function should declare an array of up to 20 group objects, and load each line from the input file into an object in the array.

The group class should have the following private data elements:

first name ,last name age

The group class should have the following functions:

Constructor(s)

Destructor - optional

Get - read first name, last name, and age from an input stream

Put - write last name, first name, and age to an output stream

The group class should have the following operators:

• > < == compare the group to another group, using Last name, First name, then age, and return a bool

Your program should do the following:

• Prompt the user for the name of the file
• Open the file
• Read the data into the array of group objects (maximum size 20)
• Close the file
• Sort the array
• Display the array

==============

text file

Ann ember 70
jacob Mark 68
David smith 45
Frank lee 37
John doe 30
Kathleen honor 34
bob ember 42
bob ember   13
Richard start 47
Susan hox 36

Answer 1

Hi as there is no specific progamming language mentioned I am writing it with python.

class ReadFile:
   def __init__(self):
       self.path = input("Enter file name: ")
       self.group = []

   def readData(self):
       with open(self.path, 'r') as f:
           for line in f:
               user = line.split(" ")
               userObj = {
                   "firstName": user[0],
                   "lastName": user[1],
                   "age": user[2].replace('\n', '')
               }
               # print(user)
               self.group.append(userObj)

   def sortData(self):
       self.sortedGroup = sorted(self.group, key=lambda k: (k['lastName'], k['lastName'], k['age']))
  
   def printGroup(self):
       for group in self.sortedGroup:
           print(group["firstName"] + " " + group["lastName"] + " " + group["age"])

if __name__ == "__main__":
   reader = ReadFile()
   reader.readData()
   reader.sortData()
   reader.printGroup()