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: 2025-06-25 08:06:21

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

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Bitcoin is a decentralized digital currency that you can buy, sell and exchange directly, without an intermediary like a bank. Bitcoin’s creator, Satoshi Nakamoto, originally described the need for “an electronic payment system based on cryptographic proof instead of trust.” Each and every Bitcoin transaction that’s ever been made exists on a public ledger accessible to everyone, making transactions hard to reverse and difficult to fake. That’s by design: Core to their decentralized nature, Bitcoins aren’t backed by the government or any issuing institution, and there’s nothing to guarantee their value besides the proof baked in the heart of the system. “The reason why it’s worth money is simply because we, as people, decided it has value—same as gold,” says Anton Mozgovoy, co-founder & CEO of digital financial service company Holyheld.

Telegram auto-delete message, expiring invites, and more

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