MyPost #attachments: Files[5] likesNo: int postDese:String MyPost() MyPost(int) addLike():void Files -sizeBytes :int getSize(): int newPost interface +printAllInfo void New Post History Post post Year int editPost():void Part I Write an example for each of the following: 1. public method: 2. Static Variable : 3. Overriding: 4. Overloading 5. Super class Part II (10 Points) A) (6 points]Write the code of the system. B) 14 points Write a test class that defines an array of 20 MyPost objects, then print on screen the summation of likes on each HistoryPost object