Java Unnamed Variables and Patterns: Using _ (Java 22+)
Use Java unnamed variables and patterns with _ in catch blocks, lambdas, loops and record patterns, and see where the underscore is a compile error.
Java Records in JPA/Spring Data: Challenges and Usecases
Java records cannot be used as the replacement for JPA entities because they restrict the byte code manipulation, generally required by frameworks to work.
Java Record Patterns: instanceof, switch and Nested Patterns
Java record patterns with examples for instanceof, nested patterns, var, generics, sealed switch without default, null handling and MatchException.
Builder Pattern for Java Records: Nested, Lombok, RecordBuilder
Learn the builder pattern for Java records with a nested builder, Lombok @Builder and RecordBuilder, plus defaults, validation and with methods on Java 25.
Java Record Type: Syntax, Constructors and Examples
Learn the Java record with examples of compact constructors, methods, generics, immutability, serialization and when a record should not replace a class.
