Java 27 and 26: runnable demos and captured output for every JEP, plus version lanes

Co-Authored-By: Claude Sonnet 5 <[email protected]> Claude-Session: https://claude.ai/code/session_01B38FGKKam5SCGgwgduVAh3
2026-09-21 15:08:50 +00:00
commit f59c1de96d
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+// JEP 504 (Java 26) removed java.applet.*, javax.swing.JApplet and the AppletInitializer overload in java.beans.
+// On 25 this compiles with deprecation warnings. On 26 it does not compile.
+import java.applet.Applet;
+
+public class AppletGone extends Applet {
+    @Override public void init() { System.out.println("applet init"); }
+}