[Learners] Complete the activities in the Microbyte (Interfaces in Java)

[srishti-034]

MicroByte Title: Interfaces in Java

Improvement Proposal:
Learners can go through the microbyte and solve the activities provided in the Microbyte. After cloning the repository, make a new folder in this format:
<github-username>_solution
In this new folder, you can place the solutions coded by you while going through all the activities. Please refrain from copying and pasting solutions of other learners.

Benefits of proposed improvements:

• People who are new to Java can get a better understanding of Interfaces and other concepts
• Learners can gain practical knowledge through coding the solutions by themselves