Lazy Java

on YouTube ↗49m

" summary

Shows how to implement laziness in Java 8 with concrete code: builds an infinite Stream 'from' and a custom lazy list that defers evaluation, demonstrates a palindrome recursion that causes stack overflow and fixes it with a trampoline to linearize recursion which actually runs on very long inputs, and implements a Reader monad replacing DI so dependencies are injected at evaluation time not construction time. Emphasizes profiling before optimizing and shows the live coding examples compile and execute as claimed.

AI-written summary · about

" chapters (15)

1. 0:00Lazy evaluation in Java
2. 6:13Lazy streams performance
3. 9:46Lazy vs imperative code
4. 11:15Prime numbers with lazy streams
5. 15:00Lazy lists in Java
6. 20:11Internal vs external iteration
7. 23:02Stack overflow and tail calls
8. 26:41Trampolining to avoid overflow
9. 31:10Lazy evaluation vs DI
10. 33:15Reader monad for context
11. 37:39Reader monad example
12. 40:19Single-step execution
13. 43:19Reader monad details
14. 46:12When to use lazy evaluation
15. 48:47Q&A

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