The file which consists of the ordering fields for records is called a. sequential file b. ordered file c. spanned file d. both a and b
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74. | The file which consists of the ordering fields for records is called |
a. | sequential file |
b. | ordered file |
c. | spanned file |
d. | both a and b |
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- #include "Bank.h" #include <iostream>#include <fstream>#include <string>#include <vector> using namespace std; int main() { Account** accounts = new Account * [10]; ifstream infile; infile.open("bank2.txt"); if ( !infile ) cerr << "File cannot be opened" << endl; else cout << "File Opened" << endl; string operationType; int totalAccount = 0; while (infile >> operationType) { if (operationType == "Saving") { int id; double initialBalance, minimumBalance, annualInterestRate; infile >> id >> initialBalance >> minimumBalance >> annualInterestRate; Saving* savingAccount = new Saving(); savingAccount->setInterest(annualInterestRate); savingAccount->setMinBalance(minimumBalance); accounts[totalAccount] = savingAccount; accounts[totalAccount]->setID(id);…istream member function__________ repositions the fileposition pointer in a file.def import_and_create_bank(filename): ''' This function is used to create a bank dictionary. The given argument is the filename to load. Every line in the file should be in the following format: key: value The key is a user's name and the value is an amount to update the user's bank account with. The value should be a number, however, it is possible that there is no value or that the value is an invalid number. What you will do: - Create an empty bank dictionary. - Read in the file. - Add keys and values to the dictionary from the contents of the file. - If the key doesn't exist in the dictionary, create a new key:value pair. - If the key does exist in the dictionary, increment its value with the amount. - You should also handle the following cases: -- When the value is missing or invalid. If so, ignore that line and don't update the dictionary. -- When the line is completely blank. Again, ignore that line and don't update the…
- A movie file has the following record structure:name ofthe movie producer director type productioncostAssume that the name of the movie is the primary key of the file. Thefield type refers to the type of the movie, for example, drama, sci-fi, horror, crimethriller, comedy and so forth. Input a sample set of records of your choice into themovie file.i) Implement a primary index-based ISAM file organization.ii) Implement secondary indexes on director, type and productioncost.381. File operation used to access attributes of a file is known to be a. get attribute b. set attribute c. define attribute d. declare attributeGiven the 5 records below stored in a file, write a code snippet that will extract two elements (fields) from a single record into two separate variables. Use string functions to identify the delimeter and extract the sub strings. Show the declaration of variables. Mohammed Farook;56 Asiphe Ndokani;75 David Johns;62 Craig Smith;81 Katlhego Ntshidi;45
- (FRP7) Write a function that reads data from a file. The file has already been opened and verified. The data should be saved in the array of type ship. The size of the array is passed in the int parameter and the number of records read is return in the last parameter, by reference. The file should be read until end of file has been reached or the array is full. struct ship{ string shipCaptain; string shipName; }; The function prototype isvoid readFile( ifstream&, ship[ ], int, int& ); ifstream - The already open file ship[ ] - array of structs where the data from the file will be stored. int - the size of the array. int& - the number of records read from the file. This value is set by the function before returning return- the number of records read from the file, returned by the function. The amount of data in the file is unknown but there is no bad data. The file format is the shipsName followed by the shipsCaptiain . Example: MillenniumFalcon HansSolodef olympics_report(filename): """ Read and process the content of the text file named `filename` to produce a string with given formatting requirements. For each line in the file produce a string that has the following format: <name> is from <country> and competes in <sport> where <name>, <country>, and <sport> are strings found in the line of the file. :param filename: string :return: list of strings """ here is the text Arvo Ossian Aaltonen,M,34,Finland,Swimming,NA Juhamatti Tapio Aaltonen,M,28,Finland,Ice Hockey,BronzeCreate a datafile that contains the first name, last name, gender, age, height, smoking preference, eye color and phone number. Add a variety of records to the file. A sample file looks like:  Write a program that opens the file and reads the records one by one. The program will skip any records where the gender preference is not a match. Of those records that match the gender preference, check to see if the age and height are between the maximum and minum preferences. Then check to see if the smoking preference and eye color are also a match. If at least 3 of the remaining fields match, consider the record a partial match, and print it in the report. If all 4 of the remaining fields match, the record is a perfect match and print it in the report with an asterisk next to it. At the end of the program, close the file and report how many total records there were of the specified gender, how many were a partial match, and how many were a perfect match.
- The __________ member function returns a file’s current write position.Function ________repositions the file position pointer to a specific location in the fileFirst programming homework Create a class of records for a gradebook called Rec. The data should be private, and should include a firstname, lastname, array of three grades, and a field for average grade. Build two constructors: a default constructor and a constructor that takes the first and last name. Build a function to read the data, either from a file or from cin. The read function reads the two names and three grades, but does not read the average grade. Build a write function that writes the data either to a file or to cout. The write function prints all of the data on one line with spaces between fields. Build a function to calculate the average grade field. Build an overloaded operator == to compare two records. This should be implemented as a friend function. Declare the constructors and functions in the body of the class, but implement them outside the class. I will provide you with a driver called hw1.cpp in ~cthorpe/public/142 and with a test file HW1.txt in the same…