Greenlight Planet Backend Developer Interview Questions and Answers

ArrayList vs LinkedList: ArrayList uses dynamic array, LinkedList uses linked nodes. Stream APIs for functional programming. Multithreading for concurrent execution.

• ArrayList: faster for random access, slower for insertions/deletions. LinkedList: faster for insertions/deletions, slower for random access.

• Stream APIs: provide functional-style operations on streams of elements. Example: stream.filter(x -> x > 5).for...read more