Functional Interface in Java: Rules, JDK Types and Generics
Functional interface in Java explained with @FunctionalInterface, java.util.function types, composition, generic interfaces and checked exceptions.
Java Predicate: test(), and(), or(), not() and IntPredicate
Java Predicate explained with examples of test(), and(), or(), negate(), Predicate.not(), IntPredicate, BiPredicate and regex asMatchPredicate() in Java 25
Lambda Expressions in Java: Syntax, Rules and Examples
Lambda expressions in Java explained with syntax forms, target typing, this vs anonymous classes, effectively final capture, exceptions and Java 25 code