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Basic
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Variables and their Data Types
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Any | Unit | Nothing
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Operators in Kotlin
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Nullability
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Control Flow Statements
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Functions in kotlin
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Kotlin Standard Functions
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Operator Overloading
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Lambda & Higher Order Functions
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Kotlin Exceptions
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Object Oriented Programming
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Classes & Constructors
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Properties & Initialization
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Inheritance
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Enums & Sealed Classes
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Abstraction
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Visibility/Access Modifiers
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Generics in Kotlin
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Collections
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Reflection
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File Read & Write
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Properties File
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Read & Write Excel Files
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CSV Files in kotlin
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Data Structures
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Sorting
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Design Patterns
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Kotlin Interview Questions