Passing a List elements to a method with Varargs parameter Here, we will see how a list elements can be passed as arguments to a method. As we learned in the Java Varargs detailed guide, that varargs can accept variable arguments. It doesn’t.In this guide, you will learn how to pass a list as an argument to a method with Varargs. It was my (naive) assumption that Kotlin would work the same way as Java in this regard. Kotlin is different - one person’s subjective description of which is better or less or more restrictive is irrelevant. In both cases, the Java compiler emits code that is a typed array. The Java Programming language (note the distinction) compiles successfully if the call site has either a list or an array for a single target method with the … syntax as the last parameter in the method definition.

There is no concept of varargs in the JVM (specifically, in the Java Virtual Machine specification as updated). I suspect you are confusing the JVM with a programming language that emits JVM byte codes (e.g.

I don’t want to get into a factual tussle here.

There can be only 1 of these, but you are free to choose the notation. Yes it is: On the JVM you cannot have method overloads for both a vararg and an array parameter of the same type. array to the elements it contains and passes those exactly 1 object, which happens to be an array, and now Java converts that What?ĪcceptsObjects(strings) // Invokes with 2 parameters: 'foo' and 'bar'. Thus, this works: void code() ĪcceptsObjects((Object)strings) // Invokes with 1 parameter: an array of strings. In Java, a varargs parameter can be called using either an array or a list of values.

Kotlin list to vararg