Abstract: The Lambda expression introduced in Java 8 gives a functional style to the object-oriented program. The major highlights of lambda expression include lazy evaluation, code readability, ...

‘Higher-order functions’ is a fancy term for functions that take other functions as arguments or that return functions. Very powerful! Last week, I casually dropped the term “higher-order function” ...

Notes & implementations of the code within Jeremy Gibbons' ``Design Patterns as Higher-Order Datatype-Generic Programs''; notably focus on multibranching trees and their BDS.

Higher-order means that now it is possible to pass the values as well as functions in the Methods same we can return both values and function from the methods.