A modern programming language that makes developers happier.

kotlinlang

`Day5`
• abstract class (abstract/override) interface (default implementation) object(can have only one instance - kotlin way of implementing Singleton design pattern)
• composition &amp; interface delegation (handle overrides by interface delegation) 
• ideations for  side project (created private repos and made several issues on issue board)
`Self-Comment`
• interface delegation - this seems to be really nice:thinking_face: 
• Last semester, I learned _(super basics of)_ design pattern in java. It's cool that I can relate `object` keyword in kotlin with Singleton pattern !
• As the lecture goes through OOP part, it takes longer than introductory parts. Takes more time to actually implement code, understand thoroughly, and take notes in notion. 
• Plus, algorithm problem solving takes too much energy lol, so I kinda get exhausted :ghost: and lose concentration to go through kotlin. But algorithm ps is in higher priority for at least this week.. so I just have to keep balance somehow.
`Goals Tomorrow`
• Finish OOP in Kotlin
• python algorithm PS - heap, DFS/BFS