lambda expressions and functional interfaces

Lambda expressions and functional interfaces are the building blocks of functional programming in Java 8. They enable us to write cleaner, more readable code by treating behavior as a first-class concept. Java’s predefined functional interfaces and method references further simplify common programming patterns and reduce boilerplate. The articles below cover these concepts in a progressive manner—from basic lambda expressions to predefined functional interfaces with multiple arguments, and finally method references—helping you apply them confidently in modern Java applications.