Learn Java 8 in My way

What is Lambda Expression ? Lambda expressions are introduced in Java 8 and are touted to be the biggest feature of Java 8. Lambda expression facilitates functional programming, and simplifies the development a lot.  Lambda Expressions, a new language feature, has been introduced in this release. They enable you to treat functionality as a method argument, or code as data. Lambda expressions let you express instances of single-method interfaces (referred to as functional interfaces) more compactly.   Lambda expression is an anonymous function (not 100% true for Java but lets assume it for time being). Simply put, it’s a method without a declaration, i.e., access modifier, return value declaration, and name. It’s a shorthand that allows you to write a method in the same place you are going to use it. Especially useful in places where a method is being used only once, and the method definition is short. It saves you the effort of declaring and writing a separa...