Библиотека собеса по Java | вопросы с собеседований

❓ Какие проблемы решает enum?

1️⃣ Безопасность и читаемость кода — заменяет строковые или числовые константы, делая код понятнее и исключая ошибки из-за опечаток.
2️⃣ Типобезопасность — исключает возможность присвоения некорректного значения.
3️⃣ Группировка связанных констант — позволяет логически объединять значения, относящиеся к одной категории.
4️⃣ Дополнительные возможности — может содержать методы и поля, расширяя функциональность.
5️⃣ Перформанс и память — использует внутреннюю кешированную таблицу значений, что ускоряет сравнение и доступ к значениям.

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Create: 2025-02-27
Last Update: 2025-06-19 16:47:31

Библиотека собеса по Java | вопросы с собеседований Telegram | DID YOU KNOW?

Find Channels On Telegram?

Telegram is an aspiring new messaging app that’s taking the world by storm. The app is free, fast, and claims to be one of the safest messengers around. It allows people to connect easily, without any boundaries.You can use channels on Telegram, which are similar to Facebook pages. If you’re wondering how to find channels on Telegram, you’re in the right place. Keep reading and you’ll find out how. Also, you’ll learn more about channels, creating channels yourself, and the difference between private and public Telegram channels.

Telegram auto-delete message, expiring invites, and more

elegram is updating its messaging app with options for auto-deleting messages, expiring invite links, and new unlimited groups, the company shared in a blog post. Much like Signal, Telegram received a burst of new users in the confusion over WhatsApp’s privacy policy and now the company is adopting features that were already part of its competitors’ apps, features which offer more security and privacy. Auto-deleting messages were already possible in Telegram’s encrypted Secret Chats, but this new update for iOS and Android adds the option to make messages disappear in any kind of chat. Auto-delete can be enabled inside of chats, and set to delete either 24 hours or seven days after messages are sent. Auto-delete won’t remove every message though; if a message was sent before the feature was turned on, it’ll stick around. Telegram’s competitors have had similar features: WhatsApp introduced a feature in 2020 and Signal has had disappearing messages since at least 2016.