Question

In Problem Set 7 you designed and implemented a Message class. This time, let's design and implement a Mailbox class in a file named Mailbox java. Do the following with this class • You may use the Message class from PS 7. You will have to add new features to the Message class from PS 7 as you work through this problem. You are welcome to start with my sample solution if you wish • Suppose there are multiple mail boxes. We will create an instance(object) of Mailbox to represent each of the mail boxes, for example, an instance for Kay's mail box and another for Jim's mail box, etc. You may create as many mail box objects as you wish in your program. Your Use Mailbox class must create at least two Mailbar objects and use them as you test your implementation A mail box should maintain the following information: It should have a name. A mail box consists of two boxes inbox and delbox. A message belongs to the inbox or delbox but not in both given a mail box. The inbox contains all the received messages and the delbox contains all the deleted messages from the inbox. So, a mail box object should maintain two arrays: one for its inbox and the other for its delbox. Each mail box object should also remember how many messages it has in its inbox and how many in its delbox. Let's assume that a message will forever reside in either the inbox or delbox You may assume that the capacity of an inbox is arbitrarily large. eg. 50. Similarly for a delbox. However, you may initially set it to a small number, say 5. for case of debugging and then set it to a large number when you feel that your program is fully debugged. A message must have a unique id number represented as an integer assigned to it at the time the message is created. The id associated with a message will remain with the message forever • A message arrives at a mail box when the receive method is called on the mail box object with a message as an argument. When a message is received, it goes automatically into the inbox of the mail box object. The messages in the inbox is maintained in the order of message ids. The message with the smallest id number must be located in the index 0 of the inbox array. The message with the largest id number toward the other end of the array. There must not be any holes between messages in the array. All the empty slots will be to the right of the message with the largest id number so far. A message gets deleted from a mail box object when the delete method is called on the mail box object with a message as an argument. If the message is not in the inbox of the mail box object, it just prints out a warning: "Message not in inbox.". If it is indeed in the inbox, the message is moved to the delbox of the same mail box object. When a message is deleted from the inbox, the hole that gets created must be filled in How do you handle the hole then? If you have n messages in the array containing messages, the messages must occupy the locations in the array from index 0 to index n-1 at all times. Also the locations in the array from index n to the last index of the array must contain a null value. Additionally, the messages in the array (both arrays) must be kept in sorted order according to their message is at all times A mail box object may get called with the undelete method. This method undeletes only the very last one that was deleted. That is, it moves the very last message that was moved from the inbox to the delbox back to the inbox again maintaining the order of messages. This undelete feature is optional, i.c., not required. In the given UseMailbox.javal included calls to undelete. If you don't have this feature implemented in yours, comment out the calls to it in UseMailbox java as you test your code • Given a message, a mail box object should be able to answer if the message is in the mail box or not. To do this the Mailbox class supports a method named search Message that takes a message id as its argument. The return value will be one of the following three: (1) mbex".(2) "delbox", or (3) "neither with their obvious meanings. Now that we have a class representing messages and a class representing mail boxes, let us build a class that tests these classes. We will call the new class Use Mailbox in a file named Use Mailbox.java. The Use Mailbox class includes only one static method in it named main as usual. Ideally the main musttest all aspects of the Mailbox class. A good starting point would be to create an instance of Mailbox to represent a mail box for, say, Kay. And create some number of calling the receive method. Then

Answer 1

import smtplib #Email Variables SMTP_SERVER = 'smtp.mail.com' #Email Server (don't change!) SMTP_PORT = 587 #Server Port (don't change!) MAIL_USERNAME = '[email protected]' #change this to match your mail account MAIL_PASSWORD = 'yourPassword' #change this to match your mail password class Mailbox.java:     def sendmail(self, recipient, subject, content):                  #Create Headers         headers = ["From: " + MAIL_USERNAME, "Subject: " + subject, "To: " + recipient,                    "MIME-Version: 1.0", "Content-Type: text/html"]         headers = "\r\n".join(headers)         #Connect to mail Server         session = smtplib.SMTP(SMTP_SERVER, SMTP_PORT)         session.ehlo()         session.starttls()         session.ehlo()         #Login to mail         session.login(MAIL_USERNAME, MAIL_PASSWORD)         #Send Email & Exit         session.sendmail(MAIL_USERNAME, recipient, headers + "\r\n\r\n" + content)         session.quit sender = Mailbox.java() Please like.....