Can anyone help me in this : 'Any' keyword in kotlin

Question

Can you help me out in this...

If Any keyword allows anything than why this doesn't works..

fun takeAny(arg: Any) {
println(arg);
}

fun main(args: Any)
{
takeAny("Some string");
takeAny(42);
}
/* Change : Array<String> to Any*/

https://www.sololearn.com/learn/8793/?ref=app

Answer 1

It works fine. But, JVM looks for main with Array<String> parameter and fails to find it. You can overload main same as any function and call the Any one from the Array<String> one to prove that fact.

Answer 2

To be a valid main entry point, the prototype must be using Array<String>. You can change args to any name. But, the function will only be found with that type on it's argument. This is a limitation in the Java Virtual Machine (JVM) code.

Answer 3

Thanks for answering 😊

Answer 4

Any is not a keyword it is a super class of classes available in kotlin and if you creat any class for example (MyClass) than by default it will be extends (Any) class

Answer 5

ohh.. it wasn't mentioned anywhere. Thanks for telling

Answer 6

John Wells so 'Any' Keyword not works for predefined functions..Is it??