Java 8 Streams - Collectors.maxBy Examples

[Last Updated: Oct 30, 2025]

This method returns a collector that outputs the maximum element according to the provided comparator.


<T> Collector<T,?,Optional<T>> maxBy(Comparator<? super T> comparator)

Examples

package com.logicbig.example.collectors;

import java.util.Optional;
import java.util.stream.Collectors;
import java.util.stream.Stream;

public class MaxByExample {
    public static void main (String[] args) {
        Stream<String> s = Stream.of("orange", "apple", "banana");
        Optional<String> o = s.collect(
                            Collectors.maxBy(String::compareTo));
        System.out.println(o.get());
    }
}

Output

orange

Original Post

Java 8 Streams - Collectors.maxBy Examples

Examples

Output

See Also