Memento Design Pattern

Hello, Everyone Here I attached the memento design pattern ppt and its code written in java.

Ppt Download Link-;

    https://docs.google.com/presentation/d/1BG8tnRfRjB4GXtVDGcMlg2dHtrXalA0O/edit?usp=sharing&ouid=115062576482700957448&rtpof=true&sd=true

Code File -;

    https://drive.google.com/file/d/1-EMjpukUo2KUOVeK27ErHIoKcGwV7Xl0/view?usp=sharing