Daily interview preparation log
Java & Python · Small, focused code updates
Last updated as part of end-of-day practice.
- Small, focused code snippets
- One concept per file
- Updated incrementally as part of ongoing preparation
- Built for explainability, not scale
- Concurrency & thread safety
- Race conditions, deadlock & starvation
- Java Memory Model (
volatile, visibility, happens-before) - Synchronization (
synchronized, locks, atomics, semaphores) - Thread pools, executors & futures
- Immutability, thread-local storage & JVM thread behavior
- Lock-free vs lock-based coordination
- Mutability & object references
- Default mutable argument pitfalls
- Shallow vs deep copy behavior
- Generators & lazy evaluation
- GIL, threading & multiprocessing
- Decorators, context managers & closures
- Object identity, scope & memory behavior
- Concepts are added or refined as learning progresses
- Existing snippets are improved for clarity and correctness
- Focus remains on correctness and explainability
This repository is for learning and interview preparation,
not for production use.