Class.isSealed() позволяет определить, является ли класс sealed-классом. Это полезно для анализа и рефлексии иерархий, особенно при работе с sealed, non-sealed и final модификаторами в Java 17+.
Java Learning
BY Java Learning
Secure video calling is in high demand. As an alternative to Zoom, many people are using end-to-end encrypted apps such as WhatsApp, FaceTime or Signal to speak to friends and family face-to-face since coronavirus lockdowns started to take place across the world. There’s another option—secure communications app Telegram just added video calling to its feature set, available on both iOS and Android. The new feature is also super secure—like Signal and WhatsApp and unlike Zoom (yet), video calls will be end-to-end encrypted.
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