Java 21 Features and Best Practices
Java 21 brings significant improvements and new features to the language. Here’s what you need to know:
Virtual Threads
- Understanding virtual threads vs platform threads
- Best practices for concurrent programming
- Performance implications and use cases
Pattern Matching
- Record patterns
- Switch expressions with patterns
- Type patterns and their applications
String Templates
- Template expressions
- Multiline string processing
- Performance considerations
Structured Concurrency
- Structured concurrency API
- Managing multiple concurrent operations
- Error handling and cancellation
Sequenced Collections
- New collection interfaces
- First/Last element access
- Reverse iteration capabilities
Best Practices
- When to use each feature
- Migration strategies
- Performance optimization tips