Problem Statement
What is the main advantage of using Sequences over Collections for chained operations?
Explanation
Sequences use lazy evaluation where operations like map and filter are not executed until a terminal operation like toList or count is called, avoiding intermediate collection creation. This can significantly improve performance for large datasets or when you don't need all results.
With collections, each operation creates a new collection immediately, so chaining multiple operations creates multiple intermediate collections. Sequences process elements one by one through the entire chain, evaluating only what's necessary.
Use asSequence to convert collections to sequences, then chain operations, and finally call a terminal operation. Sequences are ideal for large data or infinite streams but have overhead for small collections where eager evaluation is faster.
Practice Sets
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