Turn it into a more positive string: “I love Python” using replace method and print the output Finally print out the middle letter of the new string using the len method (do not simply count the letters and print the letter without using the len() method

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!

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…

I need help with Java code. I'm not sure how to start...

In Java:  Forms often allow a user to enter an integer. Write a program that takes in a string representing an integer as input, and outputs yes if every character is a digit 0-9. Ex: If the input is: 1995 the output is: yes Ex: If the input is: 42,000 or 1995! the output is: no Hint: Use a loop and the Character.isDigit() function.

write a program that inserts parentheses, a space, and a dash into a string of 10 user-entered numbers to format it as a phone number. for example 5555555555 becomes (555) 555-5555. If the user does not enter exactly 10 digits, display an error message. continue to accept user input until the user enters 999 using string builder.