Java8 Filters and collectors

Lets say we have collection of strings and we would like to filter  (remove) out certain strings from collection. We could achive the same in java 7 and earlier versions

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

public class BeforeJava8 {

    public static void main(String[] args) {

        List lines = Arrays.asList("abc","shiva", "xyz");
        List result = getFilterOutput(lines, "shiva");
        for (String temp : result) {
            System.out.println(temp);    //output : abc, xyz
        }

    }

    private static List getFilterOutput(List lines, String filter) {
        List result = new ArrayList<>();
        for (String line : lines) {
            if (!"shiva".equals(line)) { 
                result.add(line);
            }
        }
        return result;
    }

}

The same can be achieved in java 8.

import java.util.Arrays;
import java.util.List;
import java.util.stream.Collectors;

public class NowJava8 {

    public static void main(String[] args) {

        List lines = Arrays.asList("abc", "xyz", "shiva");

        List result = lines.stream()                
                .filter(line -> !"shiva".equals(line))     
                .collect(Collectors.toList());              

        result.forEach(System.out::println);                //output : abc,xyz

    }

}

So, what have we done here, we have used java 8 for filtering the collections and using lambda and reduced the number of lines to do the same.