I need 2 small Projects in which cover these topics and explain each line please .(Java)

Any type of system like... Any system or OTHER SMALL GAME AS SMALL AS EASY PLEASE CREATE 2 SMALL PROJECTS THANK YOU. But Not a number guess game and Vowel Game. I Dont need both of these i need other then these 2.( And Not to Copy Any project from chegg i am posting this same Question third time .Because experts are not covering below topics.. Must Cover below topics other wise i will mark it incomplete it will not full fil my requirement.. and write comments with each line. Thank you

• Abstraction
• Inheritance
• interface
• exception handling

sir please make as small as possible as well as easy as possible must use above topics Thank you. Kindly Create 2 small project please explain also line buy line I am uploading this Third time because another expert has created this with simple if and else statements. and must create 2 as easy as possible.

Not to copy from any source need Unique One Please Thank you