Objective: Reclusively display messages in a discussion forum with proper indentation. Each message in an online forum is captured with a unique message ID, a parent ID, and the text of the message....

Objective: Reclusively display messages in a discussion forum with proper indentation. Each message in an online forum is captured with a unique message ID, a parent ID, and the text of the message. The parent ID is the message ID of another message that a message is replying to. The first message will have a parent ID of 0 indicating that it is not replying to any message, i.e. it is a new discussion. There could be more than one discussion in a forum. All messages are stored in a file in the following format: messageID|parentID|text, where each message is a line and “|” is the delimiter to separate the fields. You are to: 1. Implement appropriate class or classes to encapsulate the messages. 2. Implement an application where the messages are loaded from file “msg.data” and displayed in a nesting hierarchy structure that show the relationship of the messages (each reply message is displayed on a separated line and indented by 2 white spaces relatively to the message being replied to) 3. [bonus] provide options for the user to create a new discussion and reply to a message. These new information must be added to the file containing the messages when the user exists your application.