Kotlin: Difference between object and companion object in a class

Question

What is the difference between an object and a companion object in a class in kotlin?

Example:

class MyClass {

    object Holder {
        //somethi         


        

Answer 1

An object, or an object declaration, is initialized lazily, when accessed for the first time.

A companion object is initialized when the corresponding class is loaded. It brings about the 'static' essence, although Kotlin does not inherently support static members.