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Java 21 LTS Features Explained: Record Patterns, Pattern Matching & Scoped Values

Comprehensive overview of Java 21 LTS: Pattern Matching for switch, Record Patterns, Sequenced Collections, and Scoped Values.

InfoSkills Engineering Team|Jul 28, 2026|6 min read

# Java 21 LTS Architectural Overview

Java 21 brings long-term support with game-changing language refinements that simplify concurrent programming and modern functional paradigms.

## Record Patterns & Deconstruction

Deconstruct complex data structures directly inside pattern matching:

```java
public record Point(int x, int y) {}

public static void printPoint(Object obj) {
    if (obj instanceof Point(int x, int y)) {
        System.out.printf("Coordinates: %d, %d%n", x, y);
    }
}
```

## Sequenced Collections

Unified interface for ordered collections:
```java
List<String> list = new ArrayList<>(List.of("first", "second", "third"));
String first = list.getFirst();
String last = list.getLast();
```
    