sliskiCode

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

sliskiCode

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

sliskiCode

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

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

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

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

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

// 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

// 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

val button = CustomButton(context)
button.visibility = CustomButton.Visibility.VISIBLE
button.foregroundGravity = CustomButton.ForegroundGravity.LEFT

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

    companion object Visibility {
        val VISIBLE = 1
        val INVISIBLE = 2
    }

sliskiCode

// Main.java
public static void main(String[] args) {
    String name = null;

    AnyKt.ifNull(name, new Function1<Object, Unit>() {
        @Override
        public Unit invoke(Object o) {
            return null;
        }
    });