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Java 17 模式匹配（Pattern Matching）与 switch Expressions （switch 表达式） and Statements （状态机）

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By case Circle c, case String s, case Point p
| CSDN
原创 于 2025-09-08 10:32:46 发布 · 407 阅读 · 13 · 4 · CC 4.0 BY-SA版权 版权声明：本文为博主原创文章，遵循 CC 4.0 BY 版权协议，转载请附上原文出处链接和本声明。 https://blog.csdn.net/D1237890/article/details/151313809 https://docs.oracle.com/en/java/javase/17/language/pattern-matching-switch.html A switch statement transfers control to one of several statements or expressions, depending on the value of its selector expression.
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Evolução do "switch case" do Java 8 ao Java 21 🎯

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By case Rectangle r, case Long l, case Double d, case String s
| DEV Community
O switch é muito utilizado quando você precisa comparar um conjunto fixo e pequeno de valores, especialmente se forem valores constantes como String, Enum, ou classes seladas. Além disso, ele é ideal para melhorar a legibilidade do código e pode oferecer vantagens de desempenho em relação ao if-else, dependendo do número de casos. O uso do switch em Java evoluiu bastante desde a versão 8. Vou destacar as principais mudanças e melhorias introduzidas ao longo do tempo.
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Pattern Matching for Switch in Java 21

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By case Long l, case Double d, case String s
| DEV Community
Pattern matching has been a highly anticipated feature in Java, bringing more power and flexibility to the language. Java 21 introduces pattern matching for switch statements, which simplifies the code and reduces boilerplate. Let's explore how this new feature works and why it's beneficial. Pattern matching for switch allows you to match a value against patterns, making the code more expressive and readable.
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