amaembo

import java.util.stream.Stream;

public class TestHashCode {
	public static void main(String[] args) {
		Stream.generate(Object::new).mapToInt(Object::hashCode).mapToObj(Integer::toHexString)
				.limit(20).forEach(System.out::println);
	}
}

amaembo

public class RecursionTest {
	static int count = 0;
	
	public static void staticMethod() {
		count++;
		staticMethod();
	}
	
	public static void staticMethod(int a) {
		count++;

amaembo

import java.util.concurrent.TimeUnit;
import java.util.stream.*;
import static java.util.stream.Collectors.*;
import java.util.*;

import org.openjdk.jmh.infra.Blackhole;
import org.openjdk.jmh.annotations.*;
 
@Warmup(iterations = 5, time = 500, timeUnit = TimeUnit.MILLISECONDS)
@Measurement(iterations = 10, time = 500, timeUnit = TimeUnit.MILLISECONDS)

amaembo

import java.util.concurrent.TimeUnit;
import static java.util.stream.Collectors.*;
import java.util.stream.*;
import java.util.function.*;
import java.util.*;

import org.openjdk.jmh.infra.Blackhole;
import org.openjdk.jmh.annotations.*;
 
@Warmup(iterations = 5, time = 500, timeUnit = TimeUnit.MILLISECONDS)

amaembo

JDK flatMap
Thread[ForkJoinPool.commonPool-worker-7,5,main]=156250
Thread[ForkJoinPool.commonPool-worker-4,5,main]=31250
Thread[ForkJoinPool.commonPool-worker-1,5,main]=125000
Thread[ForkJoinPool.commonPool-worker-6,5,main]=218750
Thread[main,5,main]=62500
Thread[ForkJoinPool.commonPool-worker-3,5,main]=125000
Thread[ForkJoinPool.commonPool-worker-2,5,main]=125000
Thread[ForkJoinPool.commonPool-worker-5,5,main]=156250
Holger's flatMap

amaembo

import java.util.concurrent.TimeUnit;
import java.util.stream.*;
import java.util.*;

import org.openjdk.jmh.infra.Blackhole;
import org.openjdk.jmh.annotations.*;
 
@Warmup(iterations = 5, time = 500, timeUnit = TimeUnit.MILLISECONDS)
@Measurement(iterations = 10, time = 500, timeUnit = TimeUnit.MILLISECONDS)
@BenchmarkMode(Mode.AverageTime)

amaembo

/*
 Refactored by Tagir Valeev
 Original code taken from
 https://raw.githubusercontent.com/gorset/radix/master/Radix.java
 Below is the original copyright notice
 --------------
 Copyright 2011 Erik Gorset. All rights reserved.

 Redistribution and use in source and binary forms, with or without modification, are
 permitted provided that the following conditions are met:

amaembo

import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.Objects;
import java.util.stream.IntStream;

import one.util.streamex.IntStreamEx;
import one.util.streamex.MoreCollectors;

public class FlatMapTest {

amaembo

package test;

import java.util.concurrent.TimeUnit;
import java.util.stream.*;
import java.util.*;
import java.util.regex.*;

import org.openjdk.jmh.infra.Blackhole;
import org.openjdk.jmh.annotations.*;
 

amaembo

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

import one.util.streamex.IntStreamEx;
import one.util.streamex.StreamEx;

public class Readability {
	public static void main(String args[]) {
		// Sample 1
		List<Integer> list = Arrays.asList(1, 2, 3);