Core to Advanced • Interview Focused • Real-World Concepts
Java Collections Framework
Complete Guide from Basics to Advanced
Master Java Collections Framework including List, Set, Map,
Generics, Iterators, Sorting, HashMap internals,
Concurrent Collections, and real-world performance concepts.
Recommended Learning Order:
Follow topics from 1 → 50 step-by-step to master Java Collections.
What You Will Learn
- Collection Interfaces & Hierarchy
- List, Set, Map & Queue Implementations
- Iterators & Sorting
- HashMap & ConcurrentHashMap Internals
- Generics & Comparators
- Concurrent Collections & Performance Concepts
Java Collections Articles
- 1
- 2
- 3
- 4
- 5
- 6
- 7
- 8
- 9
- 10
- 11
- 12
- 13
- 14
- 15
- 16
- 17
- 18
- 19
- 20
- 21
- 22
- 23
- 24
- 25
- 26
- 27
- 28
- 29
- 30
- 31
- 32
- 33
- 34
- 35
- 36
- 37
- 38
- 39
- 40
- 41
- 42
- 43
- 44
- 45
- 46
- 47
- 48
- 49
- 50
Next: Multithreading & Concurrency
After mastering Collections Framework, continue with Java Multithreading
and Concurrency concepts.