Singleton class in Kotlin

Question

I want to know way to create singleton class, so that my Util class instantiate only once per app. However when I converted my Java class to kotlin, below code was generated

Answer 1

class MyClass {


    init {
        println("init is called")
    }

    companion object {

        private var obj: MyClass? = null
        fun getInstance(): MyClass {
            if (obj == null) {
                obj = MyClass()
            }
            return obj as MyClass 
        }

    }

    fun printHello() {
        println("Hello World")
    }

You can create its instance by MyClass.getInstance() something like java