Java function object example

In Java, the word method refers to the same kind of thing that the word function is used for in other languages. Specifically, a method is a function that belongs to a class. A function is a reusable portion of a program, sometimes called a procedure or subroutine .

In Java, the word method refers to the same kind of thing that the word function is used for in other languages. Specifically, a method is a function that belongs to a class. A function is a reusable portion of a program, sometimes called a procedure or subroutine .

Function is an interface and has been introduced in java 8. Function is a functional interface. So it can be used to accept lambda expression. Function accepts one argument and returns the result. Function interface contains one method that is apply() .

Function is an interface and has been introduced in java 8. Function is a functional interface. So it can be used to accept lambda expression. Function accepts one argument and returns the result. Function interface contains one method that is apply() .

From Java 8 onwards, lambda expressions can be used to represent the instance of a functional interface. A functional interface can have any number of default methods. Runnable, ActionListener, Comparable are some of the examples of functional interfaces.

From Java 8 onwards, lambda expressions can be used to represent the instance of a functional interface. A functional interface can have any number of default methods. Runnable, ActionListener, Comparable are some of the examples of functional interfaces.