igorwojda

class Person (var name:String, var lastName:String, var weight:Double) {
    val fullName = "$name $lastName"
}

igorwojda

class Person () {
    fun run() { /*doSth*/ }

    fun walk() { /*doSth*/ }

    fun jump() { /*doSth*/ }
}

igorwojda

class Person (var name:String, var lastName:String, var weight:Double) {
    //..

    fun jump() { 
        weight -= 0.1   
        /*doSth*/ 
    }
}

igorwojda

person.name = "Igor"
person.weight = 79
person.jump()
person.jump()
person.jump()

igorwojda

class Person (var name:String, var lastName:String, var weight:Double) {
    val fullName
        get() = "$name $lastName"
}

igorwojda

//BAD
class Person () {
    private var weight:Double = 0

    fun setWeight(weight:Double) {
        this.weight = weight
    }

    fun getWeight(): Double {
        return weight

igorwojda

fun main(args: Array<String>) {
    val range = 1..10000

    logTime("benchmarkPlusOperator") { benchmarkPlusOperator(range) }
    logTime("benchmarkStringAppend") { benchmarkStringAppend(range) }
}

fun benchmarkPlusOperator(range:IntRange) {
    var str = ""
    range.forEach { str += "abc" }

igorwojda

public class MyApplication extends Application {
  public void onCreate() {
    super.onCreate();
    Stetho.initializeWithDefaults(this);
  }
}

igorwojda

textView.addTextChangedListener(new TextWatcher() {

    public void afterTextChanged(Editable s) {
        //do something
    }

    public void beforeTextChanged(CharSequence s, int start, int count, int after) {
        //do something
    }

igorwojda

class View {
    private var beforeTextChangedListener: (() -> Unit)? = null
    private var afterTextChangedListener: (() -> Unit)? = null
    private var onTextChangedListener: (() -> Unit)? = null

    fun setBeforeTextChangedListener(listener: () -> Unit) {
        beforeTextChangedListener = listener
    }

    fun setAfterTextChangedListener(listener: () -> Unit) {