Kotlin

Kotlin

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Last Update	09/16/2026
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Section 4: Object-Oriented Kotlin

8Lessons ·
- 17: Classes and Constructors
  
  Preview
Section 18: kotlin.collections In Depth

6Lessons ·
- 82: List Operations: map, filter, fold In Depth
  
  Preview
Section 20: kotlin.ranges and kotlin.sequences

4Lessons ·
- 93: IntRange, CharRange, and Progressions
  
  Preview
Section 21: kotlin.io and File Handling

3Lessons ·
- 98: Working with Path and File APIs
  
  Preview
Section 46: Kotlin Annotations Deep Dive

4Lessons ·
- 217: Building a Custom Annotation Processor
  
  Preview
Section 53: More Practice and Drills

5Lessons ·