Object Oriented Programming 1.Consider a file log.txt. Each line contain a log output from a certain mail application.[5]From: a@gmail.com To: b@gmail.comFrom: a@gmail.com To: c@gmail.comFrom: b@gmail.com To: c@gmail.comNow write a program to read from the file and find out how many times each senderhas sent the message. Output the number in a output.txt file:а 2b 1

Since no language is given in the question we are doing the program in python programming language

Answered: Consider a file log.txt. Each line…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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SOLVE IN C# A bank store its client balance in amount.txt file as follow 332000 2320000 540000 45000 321000 Write a program to read the file and print the total amount store in amount.txt file, and then write this amount on screen and to a new file name backup.txt
Suppose a library is processing an input file containing the titles of books in order to identify duplicates. Write a program that reads all of the titles from an input file called bookTitles.inp and writes them to an output file called duplicateTitles.out. When complete, the output file should contain all titles that are duplicated in the input file. Note that the duplicate titles should be written once, even though the input file may contain same titles multiple times. If there are not duplicate titles in the input file, the output file should be empty. Create the input file using Notepad or another text editor, with one title per line. Make sure you have a number of duplicates, including some with three or more copies.
Suppose a library is processing an input file containing the titles of books in order to identify duplicates. Write a program that reads all of the titles from an input file called bookTitles.inp and writes them to an output file called duplicateTitles.out. When complete, the output file should contain all titles that are duplicated in the input file. Note that the duplicate titles should be written once, even though the input file may contain same titles multiple times. If there are not duplicate titles in the input file, the output file should be empty. Create the input file using Notepad or another text editor, with one title per line. Make sure you have a number of duplicates, including some with three or more copies. (Programming Language: Java)
from Big Java 6th. Edition. Ch.11 P11.12: the capacitor is represented by the equation v(t) = B(1 - e-t/(RC)) Suppose the parameters of the electric circuit are B = 12 volts, R = 500 Ω, and C = 0.25 μF. Consequently v(t) = 12(1 – e-0.008t) where t has units of μs. Read a file params.txt containing the values for B, R, C, and the starting and ending values for t. Write a file rc.txt of values for the time t and the corresponding capacitor voltage v(t), where t goes from the given starting value to the given ending value in 100 steps. In our example, if t goes from 0 to 1000 μs, the twelfth entry in the output file would be: 110.00 7.02261 Make sure that your program catches the FileNotFoundException that can occur if your input file params.txt cannot be found. Your program should catch this exception, and then prompt the user for a file name again until a valid file is entered. I hbelieve I have everything needed, but I cannot figure out how to write in the…
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Write an address book program that stores your contacts' names and their email addresses. The names and email addresses are originally stored in a file called phonebook.in, in the format: Harry Potter t..d@hogwarts.edu Hermione Granger b..h@hogwarts.edu Ron Weasley r..b@hogwarts.edu Draco Malfoy m..s@hogwarts.edu Severus Snape h..e@hogwarts.edu Albus Dumbledore a..x@hogwarts.edu Your program should read from the file, storing the names and corresponding email addresses in a dictionary as key-value pairs. Then, the program should display a menu that lets the user enter the numbers 1 through 5, each corresponding to a different menu item: 1) look up an email address 2) add a new name and email address 3) change an email address 4) delete a name and email address 5) save address book and exit When the user enters 1, the program should prompt them for a name, and then print the corresponding email address. If there is no dictionary entry under that name, the program should print, "Sorry,…
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Follow these steps:● Create a Python file called amazon.py in this folder.● Write code to read the content of the text file input.txt.● For each line in input.txt, write a new line in the new text file output.txtthat computes the answer to some operation on a list of numbers.● If the input.txt has the following:o Min: 1,2,3,5,6o Max: 1,2,3,5,6o Avg: 1,2,3,5,6● Your program should generate output.txt as follows:o The min of [1, 2, 3, 5, 6] is 1.o The max of [1, 2, 3, 5, 6] is 6.o The avg of [1, 2, 3, 5, 6] is 34
Write a Python program to combine each line from the first file with the corresponding line in the second file and then save it in a 3rd file. Consider, both the files have same number of lines. Assume, each line has a newline(\n) at the end. ========================================================= Example:Input from file 1:HelloHiNice Input from file 2:BadWorseWorst Output in 3rd FIle:Hello BadHi WorseNice Worst ========================================================= Hint(1):Use the write() function what will be the answer of this in python programming language
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