Java 8 Stream findAny & findFirst method Example

10 months ago codedestine 0
In this tutorial, we will learn about Java 8 stream findAny and findFirst method. Note :- To keep this tutorial short and concise, Employee Bean used in the example is not given here, you can check it here. findAny() method :- This method is called on Stream object, it returns an Optional object containing any one element of the Read More

Java 8 Convert List to Map using Streams API

10 months ago codedestine 0
Java 8 Convert List to Map :- In this tutorial, we will learn to convert list to map using Stream API. Note :- To keep this tutorial short and concise, Employee Bean used in the example is not given here, you can check it here. Problem Statement :- Given a list of Employee object convert it Read More

Java 8 filter method Example

10 months ago codedestine 0
In this tutorial, we will learn about Stream java 8 filter method. filter() method :- This method is called on Stream object, it takes one Predicate as an argument and returns a new stream consisting of the elements of the called stream that match the given predicate. Syntax :-  Stream<T> filter(Predicate<? super T> predicate) Reference :-  filter() method Read More

Java 8 Convert Map to List using Streams API

10 months ago codedestine 0
Java 8 Convert Map to List :- In this tutorial, we will learn to convert map to list using Stream API. Problem Statement :- Given a map of Integer as a key and String as a Value convert it to the list, containing all the values of Map. Let’s see the implementation of above problem Read More

Java 8 Convert Primitive Array to List using Streams API

10 months ago codedestine 0
Java 8 Convert Primitive Array to List :- In this tutorial, we will learn to convert primitive array to list using Stream API. Converting an array of objects to a list is very easy and straightforward, you can use Arrays.asList() directly to convert it but this method does not work for converting primitive type arrays because Read More

Java 8 BiFunction Interface

10 months ago codedestine 0
In this tutorial, we will learn about Java 8 BiFunction interface. BiFunction Interface :- BiFunction ( java.util.function.BiFunction ) is a functional interface that has one abstract method and one default method declared in it. It represents an algorithm where two input parameter of same or different type is used to produce return value of same or Read More

Java 8 BinaryOperator Interface

10 months ago codedestine 0
In this tutorial, we will learn about Java 8 BinaryOperator interface. BinaryOperator Interface :- BinaryOperator ( java.util.function.BinaryOperator ) is a subinterface of the BiFunction interface, it has two static method along with all the abstract and default method inherited from the BiFunction interface. It represents an algorithm where two input parameter of same type is used to Read More

Java 8 UnaryOperator Interface

10 months ago codedestine 0
In this tutorial, we will learn about Java 8 UnaryOperator interface. UnaryOperator Interface :- UnaryOperator ( java.util.function.UnaryOperator ) is a subinterface of the Function interface, it has one static method along with all the abstract and default method inherited from the Function interface. It represents an algorithm where input parameter of one type is used to produce return value of Read More

Java 8 Function Interface

10 months ago codedestine 0
In this tutorial, we will learn about Java 8 Function interface. Function Interface :- Function ( java.util.function.Function ) is a functional interface that has one abstract method and two default method declared in it. It represents an algorithm where input parameter of one type is used to produce return value of same or another type. Abstract Read More

Java 8 Supplier Interface

10 months ago codedestine 0
In this tutorial, we will learn about Java 8 Supplier interface. Supplier Interface :- Supplier ( java.util.function.Supplier ) is a functional interface that has one abstract method declared in it. It represents an operation by which you can generate new values in the stream. Abstract method :-  T  get (  ) :- The abstract method get ( Read More