c++ The Lock class of the preceding problem has a small problem. It does not support combinations that start with one or more zeroes. For example, a combination of 0042 can be opened by entering just 42. Solve this problem by choosing a different representation. Instead of an integer, use a string to hold the input. Once again, the combination is hardwired. You will see in Section 9.6 how to change it. Complete the following file:

JAVA PPROGRAM   Please Modify this program with further modifications as listed below: ALSO, take out and change the following in the program:  System.out.println("Program terminated."); because the test case does not need it And change this in the program: Please enter the file name or type QUIT to exit:\n so it reperats once for every test case because it repeats twice in every case as shown in the screenshot. I only need it once. I have provided the failed the test cases and the inputs as a screenshot.  The program must pass the test case when uploaded to Hypergrade.   import java.io.*;import java.util.ArrayList;import java.util.Scanner;public class SymmetricalNameMatcher {    public static void main(String[] args) {        Scanner scanner = new Scanner(System.in);        String fileName;        do {            // Prompt the user to enter a file name or 'QUIT' to exit.            System.out.print("Please enter the file name or type QUIT to exit:\n");            fileName =…

Write a complete Python program that opens a file called sample.txt for reading, and opens a file called out.txt for writing.

Write a program that obtains the executiontime of external sorts for integers of size 6,000,000, 12,000,000, 18,000,000,24,000,000, 30,000,000, and 36,000,000. Your program should print a tablelike this:

The loop below is intended to collect all characters that occur more than once in a given string. When you try it out with a string such as “Mississippi”, you will note that that letters that occur three or more times are collected more than once. Modify the loop so that each repeated letter is collected exactly once. For example, when s is “Mississippi”, result should be “si” and not “sissii” Only allowed to edit code in the /* Your code goes here */ portion. Thanks for the help!

IN C++. show CODE PLEASE.

Can someone please help me with this project for my Java Programming class? If you could correct my mistakes for me that would be great.

Look at the image for the expected output. Use if class, scanner class, return class to do this program. Look image for the valid user input.

This is a python file Fix this code and the output is the attachment   #filename: modValidateEmail.py def isValidMSUMEmail(email):     if email.count('@') != 1: return False     tmp= email.split('@')     if len(tmp) == 0: return False     userName = tmp[0]     if not userName[0].isalpha():         return False     for c in userName:         if not c.isalpha() and c != '.':             return False     inst= tmp[1]     if inst != 'mnstate.edu': return False     else: return True #filename:  UnitTestValidEmail.py from unittest import * from modValidateEmail import *     class TestValidEmail(TestCase):      #create a subclass of unittest.TestCase            def testUserName(self):         self.assertEqual(isValidMSUMEmail('.joe@mnstate.edu'),False)         self.assertEqual(isValidMSUMEmail('joe4@mnstate.edu'),False)         self.assertEqual(isValidMSUMEmail('joe$smith@mnstate.edu'),False)         self.assertEqual(isValidMSUMEmail('joe.smith@mnstate.edu'),True)       def…

Can anyone help solving this problem In Python