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#php
#kotlin
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#sql
#rust
#typescript
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#java
#python
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Java
Atomic File Write (move with ATOMIC_MOVE)
Write to a temp file in the same directory, then `Files.move` with `ATOMIC_MOVE` to the target. Readers never see a half-written file — critical for config / state files.
@admin
Java
Path Operations — Resolve, Relativize, Normalize
`Path` (NIO) replaces `File` for new code. Operator-like methods compose paths cleanly across OSes — and the underlying file isn't touched until you do I/O.
Java
Files.walk — Recursive Tree Traversal
`Files.walk` returns a lazy Stream over every entry under a path. Filter with stream operations; remember to close the stream (or use try-with-resources).
Java
Files.readString / readAllLines
`java.nio.file.Files` shipped these convenience helpers in Java 8/11. Way cleaner than the legacy `FileReader` + `BufferedReader` ceremony for small/medium files.
Java
BufferedReader / BufferedWriter
For large files or line-oriented protocols, wrap a Reader/Writer in `Buffered*`. Reduces per-call overhead from many small reads to fewer large ones. Always close with try-with-resources.