Explain in your own words: a.) What is a file’s read position? Where is the read position when a file is first opened for reading? b.) Why should a program close a file when it’s finished using it?
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Explain in your own words:
a.) What is a file’s read position? Where is the read position when a file is first opened for reading?
b.) Why should a
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- This Python Lab 9 Lab: Write a file copying program. The program asks for the name of the file to copy from (source file) and the name of the file to copy to (destination file). The program opens the source file for reading and the destination file for writing. As the program reads each line from the source file and it writes the line to the destination file. When every line from the source file has been written to the destination file, it close both files and print “Copy is successful.” In the sample run, “add.py” is the source file and “add-copy.py” is the destination file. Note that both “add-copy.py” is identical to “add.py” because “add-copy.py” is a copy of “add.py”. Sample run: Enter file to copy from: add.py Enter file to copy to : add-copy.py Copy is successful. Source file: add.py print("This program adds two numbers") a = int(input("Enter first number: ")) b = int(input("Enter second number: ")) print(f"{a} + {b} = {a+b}") Destination file:…What is a file’s read position? Initially, where is the read position when an input file is opened?Explain in your own words: a.) What does it mean to append data to a file? b.) How do you open a file so that new data will be written to the end of the file’s existing data?
- Subject :computer sciences language : c ++ Question : write a program in c++ in which the main program ask user for the number of students whose records must be inserted in file(file handling ). Afterwards, take records from user, calculate grade of students and store all records in a file. paste the screen record of the file and also the outputs.Fill-in-the-Blank What is a file’s read position? Where is the read position when a file is first opened for reading?Answer the given question with a proper explanation and step-by-step solution. 1- Write code that does the following: opens an output file with the filename number_list.txt, uses a loop to write the numbers 1 through 100 to the file, then closes the file.
- The read position advances forwards, towards the end of the file, as things are read from it.What makes a pretest and posttest loop different? Why are statements in the body of a loop that are conditionally executed referred to as that? Why is proper initialization of the counter and accumulator variables so crucial? Why should a piece of software close a file after it has finished using it?Q4. Write an algorithm of a program to read from a file. The user should be able to get the option to input the file name. He is supposed to read first 100 bytes from the file. After the reading is done, the file should be closed. If the file is not available, the program should be closed immediately. You should mention "System call" beside each instruction which are supposed to use a system call function. *
- This is phython not Java Lab: Write a file copying program. The program asks for the name of the file to copy from (source file) and the name of the file to copy to (destination file). The program opens the source file for reading and the destination file for writing. As the program reads each line from the source file and it writes the line to the destination file. When every line from the source file has been written to the destination file, it close both files and print “Copy is successful.” In the sample run, “add.py” is the source file and “add-copy.py” is the destination file. Note that both “add-copy.py” is identical to “add.py” because “add-copy.py” is a copy of “add.py”. Sample run: Enter file to copy from: add.py Enter file to copy to : add-copy.py Copy is successful. Source file: add.py print("This program adds two numbers") a = int(input("Enter first number: ")) b = int(input("Enter second number: ")) print(f"{a} + {b} = {a+b}") Destination…What happens when a file is read?File Iteration: Introduction A text file is essentially a sequence of lines. Here is a typical coding pattern for processing each line of a file in turn: Open the file for reading. Use a for loop to iterate over the lines of text, executing a block of one or more statements to process each line. Close the file. Finish processing (print, return, etc.) if needed NOTE: You will need to use this pattern, or some variation of it, to solve the remaining coding problems in this assignment. As the following for loop iterates through each line of the file, the loop variable (`line`) represents the current line of the file as a string of characters. myFile = open("someTextFile.txt", "r") for line in myFile: do something on each iteration do a second thing on each iteration etc... myFile.close() PROBLEM: Read a string from standard input using python. Then, iterate over a text file called "cards.txt" and, for each line of the file that starts with the string read from standard input,…