Java Functional Interface

Java Lambda expression Lambda expression came to enable to use functional programming feature in java. It provides the facility to assign a function into a variable. Lambda expression provides implementation of functional interface. Lambda expression just like a function. Benefits of Lambda Expression Length of code reduced. Increase the code readability. Java Lambda Expression Syntax (argument-list) -> {body} Java lambda expression is consisted of 3 components. 1) Argument-list: It can be empty or non-empty as well. 2) Arrow-token: It is used to link arguments-list and body of expression. 3) Body: It contains expressions and statements for lambda expression. Java Lambda Expression Example ( ) -> System.out.println("Welcome"); Output : Welcome Java Functional Interfaces Functional Interfaces are used to invoke the lambda expression. It help...