Java Default Collections and LinkedList
Java Default Collections
Java provides a rich Collections Framework in the java.util package, offering pre-built and well-optimised data structures such as:
- List (implementations ArrayList, LinkedList, Vector)
- Set (implementations HashSet, TreeSet, LinkedHashSet)
- Queue/Deque (implementations, ArrayDeque, LinkedList
These collections are designed to handle common programming needs without requiring developers to manually implement data structures.
Advantages of Java Default Collections Library Usage
Efficiency
- Optimised Performance: Library collections are implemented by experts and are optimised for speed and memory usage.
- Time-Saving: Developers can use these collections without having to write and debug their own implementations.
The Java ArrayList is a dynamic array that automatically resizes itself, eliminating the need for developers to manually manage array resizing.
Reliability
- Well-Tested: Library collections are thoroughly tested and used by millions of developers, reducing the likelihood of bugs.
- Consistency: They provide consistent behaviour across different projects and platforms.
Flexibility:
