Add java17-features module: runnable demos and captured output for the ankurm.com java17-features article

2026-10-20 17:13:58 +00:00
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+# java17-features — Java 17 features with examples
+
+Companion code for the ankurm.com article **Java 17 Features with Examples: Records, Sealed Classes, Text Blocks, Switch Expressions**. The explanation lives in the article; this folder holds the runnable sources and the transcripts they produced. There is no `docs/` folder: the depth is inside the article itself.
+
+```bash
+JDK11=/path/to/jdk11 JDK17=/path/to/jdk17 ./run.sh      # regenerates output/*.txt
+```
+
+- `src/` compiles and runs unchanged on the JDK named in each output header.
+- `broken/` fails to compile on purpose; the compiler's own message is committed in `output/`.
+- `output/` is real captured output, regenerated by `run.sh`.
+
+Tested on: Temurin 17.0.20.1, plus 11.0.32.1 for the strong-encapsulation comparison.