java 8 stream

Java 8 Stream peek method Example

8 months ago codedestine 0
In this tutorial, we will learn about Java 8 stream peek method. peek() method :- This method takes one Consumer as an argument, this consumer accepts one parameter T as an input argument and return one stream of parameter T as a return value. The main purpose of this method is to support debugging, When you want to see Read More

Java 8 Stream flatMap method Example

11 months ago codedestine 4
In this tutorial, we will learn about Java 8 stream flatMap method. flatMap() method :- This method takes one Function as an argument, this function accepts one parameter T as an input argument and return one stream of parameter R as a return value. When this function is applied on each element of this stream, it produces a Read More

Java 8 Stream map method Example

11 months ago codedestine 0
In this tutorial, we will learn about Java 8 stream map method. map() method :- This method takes one Function as an argument and returns a new stream consisting of the results generated by applying the passed function to all the elements of the stream. Syntax :-  <R> Stream<R> map ( Function<? super T, ? extends R> Read More

Java 8 Stream limit & skip method Example

11 months ago codedestine 0
In this tutorial, we will learn about Java 8 stream limit and skip method. limit() method :- This method takes one long ( N ) as an argument and return a stream of length N, after truncating it. Syntax :-  Stream<T> limit(long n) Reference :-  limit() method JavaDocs Problem Statement :- You have given a list of integers, remove all Read More

Java 8 Stream findAny & findFirst method Example

11 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

11 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

11 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

11 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

11 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

11 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