AlexeySoshin

// There's no proper UUID package still, so we'll deal with floats
m := make(map[float64]float64)

// This will allow us to wait for all goroutines to complete
doneChannel := make(chan bool, 10)

// Launch goroutines
for i := 0; i < 10; i++ {
       go func() {
              // Generate some random numbers

AlexeySoshin

m := make(map[float64]float64)

// Create mutex manually
mux := sync.Mutex{}
doneChannel := make(chan bool, 10)

for i := 0; i < 10; i++ {
       go func() {
             
              for i := 0; i < 1000; i++ {

AlexeySoshin

ExecutorService executor = Executors.newFixedThreadPool(4);
for (int i = 0; i < 10; i++) {
    executor.execute(() -> {  
        //No Java without boilerplate!     
        try {
            Thread.sleep(1000);
        } catch (InterruptedException e) {}
        System.out.println("Finished");
    });
}

AlexeySoshin

for i := 0; i < 10; i++ {
       go func() {
              time.Sleep(1 * time.Second)
              fmt.Println("Finished")
       }()
}

AlexeySoshin

wg := sync.WaitGroup{}
// Wait for all child goroutines
wg.Add(10)
for i := 0; i < 10; i++ {
       go func(wg sync.WaitGroup) {
              time.Sleep(1 * time.Second)
              fmt.Println("Finished")
              wg.Done()
       }(wg)
}

AlexeySoshin

wg := &sync.WaitGroup{}
wg.Add(10)
for i := 0; i < 10; i++ {
       go func(wg *sync.WaitGroup) {
              time.Sleep(1 * time.Second)
              fmt.Println("Finished")
              wg.Done()
       }(wg)
}
wg.Wait()

AlexeySoshin

wg := sync.WaitGroup{}
for i := 0; i < 10; i++ {
       wg.Add(1)
       go func() {
              time.Sleep(1 * time.Second)
              fmt.Println("Finished")
              wg.Done()
       }()
}
wg.Wait()

AlexeySoshin

package main

import (
	"fmt"
	"unicode/utf8"
)

func main() {

	word := `Maximilianstraße`

AlexeySoshin

@SpringBootApplication
class KotlinSpringBootApplication

fun main(args: Array<String>) {
    // That part of boilerplate you still cannot get rid of
    SpringApplication.run(KotlinSpringBootApplication::class.java, *args)
}

AlexeySoshin

// No need for setters getters for a simple POJO
data class Cat(var id : UUID? = null, 
               val name: String, 
               val age: Float, 
               val weight: Float, 
               var sex : Cat.Sex = Sex.Unknown) {
    enum class Sex {
        Unknown,
        Male,
        Female,