Java 8 Stream Filter with Example

In this article we will learn how to use Java 8 Stream Filter with Example,  I have used String list to filter the names. Stream, A sequence of elements supporting sequential and parallel aggregate operations. Below example will show you how to filter the list with predicate.

StringFilterUsingStream.java 

package com.javadevelopersguide.tutorial;
import java.util.ArrayList;
import java.util.List;
import java.util.stream.Collectors;
/**
 * @author manoj.bardhan
 *
 */
public class StringFilterUsingStream {
public static void main(String[] str) {
List<String> nameList = new ArrayList<String>();
nameList.add("Roshna");
nameList.add("Amit Kumar");
nameList.add("Manoj");
nameList.add("Neha");
nameList.add("Rina");
nameList.add("Ashna");
nameList.add("Peter");
nameList.add("Deb Kumar");
System.out.println("All Names ::");
nameList.stream().forEach(name -> System.out.println(name));
// Filter all names ends with "Kumar"
List<String> filteredList = nameList.stream().filter(nam -> nam.endsWith("Kumar")).collect(Collectors.toList());
System.out.println("\nFiltered Names ::");
filteredList.stream().forEach(name -> System.out.println(name));
}
}

Output :

All Names ::
Roshna
Amit Kumar
Manoj
Neha
Rina
Ashna
Peter
Deb Kumar

Filtered Names ::
Amit Kumar
Deb Kumar


Hope this will help you. Happy Learning.

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