sliskiCode

// Using in Java
CustomButton button = new CustomButton(context);
button.setVisibility(CustomButton.Visibility.getGONE());

...

class CustomButton(context: Context?) : View(context) {
    companion object Visibility {
        val GONE = 1
        val VISIBLE = 2

sliskiCode

// Using in Java
CustomButton button = new CustomButton(context);
button.setVisibility(CustomButton.Companion.getGONE());

// Using in Kotlin
val button = CustomButton(context)
button.visibility = CustomButton.VISIBLE

class CustomButton(context: Context?) : View(context) {
    companion object {

sliskiCode

import android.view.View as AndroidView // Named import

class UserInfoFragment : Fragment(), View {
    
    override fun onCreateView(inflater: LayoutInflater, 
                              container: ViewGroup?, 
                              state: Bundle?): AndroidView = // Using named import
}

sliskiCode

package com.code.sliski.userinfoscreen.ui

import ...

import android.view.View // Conflict

class UserInfoFragment : Fragment(), com.code.sliski.userinfoscreen.ui.View { // Conflict

    override fun onCreateView(inflater: LayoutInflater, 
                              container: ViewGroup?, 

sliskiCode

val collection = listOf("Piotr", "Slesarew")

collection.reversedForEach(::println)

fun <T> Iterable<T>.reversedForEach(action: (T) -> Unit): Unit {
    for (element in this.reversed()) action(element)
}

sliskiCode

val collection = listOf("Piotr", "Slesarew")

collection.reversed()
          .forEach(::println)

sliskiCode

String foo = "Piotr Slesarew";
StringKtTestKt.removeWhitespaces(foo);

sliskiCode

public final class StringKtTestKt {
  @NotNull
  public static final String removeWhitespaces(@NotNull String $receiver) {}
}

sliskiCode

import org.junit.Assert.assertEquals
import org.junit.Test

fun String.removeWhitespaces() = replace(" ", "")

class StringKtTest {
    @Test fun removesWhitespacesFromString() {
        val tested = "Piotr Slesarew"

        val actual = tested.removeWhitespaces()

sliskiCode

public final class CopyPrinter implements Copy, Print {
   // $FF: synthetic field
   private final Copy $$delegate_0;
   // $FF: synthetic field
   private final Print $$delegate_1;

   public CopyPrinter(@NotNull Copy copier, @NotNull Print printer) {
      Intrinsics.checkParameterIsNotNull(copier, "copier");
      Intrinsics.checkParameterIsNotNull(printer, "printer");
      super();