<Swing Dev> [15] Review Request: 8237746 Fixing compiler warnings in src/demo/share/jfc

[Sergey Bylokhov]

Hello.
Please review the fix for compiler warnings in the demo/jfc in JDK 15.

Bug: https://bugs.openjdk.java.net/browse/JDK-8237746
Fix: http://cr.openjdk.java.net/~serb/8237746/webrev.00

This fix contributed by the Marc Hoffmann:
https://mail.openjdk.java.net/pipermail/swing-dev/2019-October/009846.html

Fixed warnings: raw types, deprecated APIs, deprecated Applet APIs.

-- 
Best regards, Sergey.