This is a simple Intellij Project: you just have to clone the repo and open it.

• Daily Interview Pro Challenges

• Hello World
• Classes
  • Class with inheritance
  • Button with callback interface
  • Dataclass
• Collections
  • Map mutable and inmutable
  • List mutable and inmutable
• Conditions
  • If and if-else
  • When
  • Comparators
• Functions
  • Unit and return
  • With and without parameters
• IntArraySum
  • Lambda foreach
  • SumBy and Sum
• Lambda
  • Lambda functions
• Loops
  • For of List
  • For of Map
  • While
• Nullability
  • Elvis Operator
  • Null of Strings
• Numbers
  • Basic Operators
  • Module operator for odd or even numbers
• Strings
  • Strings with break lines
  • Strings with multiple lines
  • Lower and Upper Case
  • Number to String
  • Content Equals and Contains
• TypeCasting
• Variables
  • String, double, float, long
  • Double to String
  • Mutable (Var) and Unmutable (Var) variable
• Json encode & decode
  • Kotlin Serialization Library
• Input console
  • readLine with split string
• Generic Class
  • instances with different type parameters
  • deconstruction declarations
• Delegation
  • lazy
  • observable
  • notNull
• Companion Objects
• Data Structures
  • nodes
  • queues
  • stacks
  • binary tree
    • preOrder
    • inOrder
    • posOrder

• Button
  • Functions
    • press
    • setOnClickListener (OnClickListener)
  • Interfaces
    • OnClickListener

• Vehicle
  • Interfaces
    • OnVehicleState
  • Childs
    • Car
    • Truck
• Person (data class)