Stream API

Stream : The Java Stream API provides a more functional programming approach to iterating and processing elements of e.g. a collection and coming for java8 Stream in java can be defined as a sequence of elements from source that supports aggregate operations or bulk operations on...

Supplier Interface

Supplier : Supplier is a functional Interface is coming form java.util.funcation package. Which has been introduces in java 8 to implement functional programming in java.                              ...

Consumer Interface

The Consumer Interface is a part of the java.util.function package which has been introduced in Java 8, to implement functional programming in Java. It represents a function which takes in one argument and produces a result. However these kind of functions...

Function Interface

Function interface is a part of the java.util.function package which has been introduced in java 8. Functions are exactly same as predicates except that functions can return any type of result but function should (can) return only one value and that value can be any type as per...

Predicate Interface

Predicate is a mathematics term to introduce java 8 as a functional interface. version (i.e.,Predicate<T>).  Predicate is  a functional interface and can therefore be used as the assignment target for a lambda expression or method reference. A predicate...

Static methods

Java interface static method is similar to default method except that we can’t override them in the implementation classes. They are part of interface, we can’t use it for implementation class objects.  It helps in providing security by not allowing implementation classes...

Anonymous Inner Class in Funcational Interface

Anonymous Inner Class Anonymous inner class is without having any name such type of class is called anonymous inner class. Example 1. Runnable    r = new Runnable (){               public...