patterns: run Guards, NullCase and MatchException demos on 21 too; add switch-on-long check

Adds broken/SwitchOnLong.java and regenerates transcripts so every 'runs on 21, 25 and 27' claim has a transcript. Additive commit. Co-Authored-By: Claude Sonnet 5 <[email protected]> Claude-Session: https://claude.ai/code/session_01TF9JWFvJSNm6HVzswzZU5a
2026-09-24 11:54:48 +00:00
parent bc91b9c8d0
commit 65a4bbbbe3
6 changed files with 52 additions and 3 deletions
@@ -0,0 +1,10 @@
+public class SwitchOnLong {
+    public static void main(String[] args) {
+        long n = 1L;
+        String s = switch (n) {          // switch on long: not allowed without the preview
+            case 0L -> "zero";
+            default -> "other";
+        };
+        System.out.println(s);
+    }
+}