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Java Pattern Matching in switch
: Write Cleaner and Safer Code
Java 21 introduces Pattern Matching in switch
for cleaner and more efficient code.
🚀 Introduction: Why Use Pattern Matching in switch
?
Before Java 21, handling different object types in a switch
was not possible directly. Instead, developers were forced to:
❌ Use instanceof
checks inside if-else
statements
❌ Manually cast objects to their actual types
❌ Use complex and verbose logic to handle multiple types
💡 Java 21 introduces Pattern Matching in switch
, making code cleaner and safer.
📌 In this article, you’ll learn:
✅ What is Pattern Matching in switch
?
✅ How to simplify type-based logic using pattern matching
✅ Complete examples demonstrating real-world use cases
🔍 The Problem: How Java Handled Type Checks Before Java 21
Before Java 21, you could not use switch
on objects unless they were enum
, String
, or primitive types. Instead, you had to rely on if-else
with instanceof
checks.