File operation used with random access files to first position pointer to a specific place in a file, is known to be a. Pointer b. Cursor c. Current locator d. Seek
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373. | File operation used with random access files to first position pointer to a specific place in a file, is known to be |
a. | Pointer |
b. | Cursor |
c. | Current locator |
d. | Seek |
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- 1. Declare a file pointer called input. Open a file called location.txt for reading using this pointer. 2. If the file is not available, display “File does not exist. ". 3. The content of the text file location.txt is as shown below. It includes the location, latitude and longitude values. FILE location.txt CONTENTS UTM 1.5523763 103.63322 KLCC 3.153889 101.71333 UM 3.1185 101.665 UMS 6.0367 116.1186 UNIMAS 1.465174 110.4270601 Ask the user to enter a location. Check if the user's location can be found in the text file. If found, display the location, latitude and longitude as shown below. SAMPLE OUTPUT Enter a location: UM : UM : 3.1185 : 101.6650 Location Latitude Longitude Otherwise display “Sorry, location could not be found". SAMPLE OUTPUT Enter a location : MMU Sorry, location could not be foundINSTRUCTION: C++ Language Create a function that writes to a file named Inventy.txt the information of 8 items. Ask the user for the item's name, the item's quantity in storage, and the item's price and write it to the file. Create a function that reads the file and items' quantity and price to two different arrays. Create a function that computes the subtotal of each item. Implement all functions inside the main program and the computed value should be displayed with the item's name.write a program for I/O system calls. ALGORITHM:1. Start the program.2. open a file for O_RDWR for R/W,O_CREATE for creating a file , O_TRUNC fortruncate a file3. Using getchar(), read the character and stored in the string[] array4. The string [] array is write into a file close it.5. Then the first is opened for read only mode and read the characters and displayed It andclose the file6. Stop the program
- 82. The ordered files with primary index are called a. linear spanned file b. indexed sequential files c. relative spanned file d. indexed spanned fileThis marks the location of the next item that will be read from a file.a. input positionb. delimiterc. pointerd. read positionPleaser refer on the attached file.
- IN PYTHON - please help with lines beginning with ###TODO import csvimport random as randimport sys # define functions def load_csv_data(filename): """ load the data from csv file returns a tuple containing two lists: col_names: first row of csv file (list of strings) row_data: all other rows of csv file (list of list of strings) if error is encountered reading filename, returns -1 """ try: data = [] ### TODO - load the data from csv file ### use csv.reader to append rows of filename to data except: print("Error loading data.") return -1 # if successful, return tuple of column names and row data col_names = data[0] row_data = data[1:] return (col_names, row_data) def display_menu(): ### TODO - print the main menu print("Main Menu") print("1 - Get Clean Sample") print("2 - Calculate Total Profit in Sample") print("Q - Quit") def get_valid_menu_option(): ### TODO - get valid menu…In C++ Create a function that takes in an array and outputs the min, max and average of the array to a file.POWERSHELL TASK Try to swap two strings/names in a file and the file name should be a command-line argument.
- Python create function writeAFile() to meet the conditions below- accept two parameters: a string (name of a file) a list- add a meaningful docstring- open the filename for writing- write to the file all of the items in the list.- Each item should be on a separate line in the file.- Count the number of lines written to the file.--- don't forget to close the file- return the number of written linesRestriction: you may NOT use the built-in function len()- params: string list- return: integerQuestion 1 It is a container in computer storage devices used for storing data. Structure Array O File Function When working with files, you need to declare a pointer of type O File O FILE File Pointer O fileProgram for simulation of grep unix commands algorithm(C language)STEP1: Start the program STEP2: Declare the variables fline[max], count=0, occurrences=0 and pointers *fp, *newline. STEP 3: Open the file in read mode.STEP4: In while loop check fgets(fline,max,fp)!=NULL STEP 5: Increment count value. STEP 6: Check newline=strchr(fline, „\n‟) STEP 7: print the count,fline value and increment the occurrence value. STEP 8: Stop the program