A modern programming language that makes developers happier.

kotlinlang

When are `object`s initialized? Is it directly at program start / JVM start (if on JVM)?

Although for `companion object`s it seems to be "whenever JVM static initializer runs":
<https://kotlinlang.org/docs/object-declarations.html#behavior-difference-between-object-declarations-and-expressions>

Objects on the whole are sugar for this pattern: 
```class Foo {
  public static final Foo INSTANCE = new Foo();
}
```
So they get instantiated when the static initializer runs, which is on the first time the class is accessed

&gt; So they get instantiated when the static initializer runs, which is on the first time the file is accessed
No, not the first time the *file* is accessed but the first time the *object* is accessed.

Whoops, I was thinking in Java and forgot that top-level stuff exists. That's what I meant, thanks for clarifying

Even in Java, you can have multiple class definitions at the top level in the same file (as long as they're package-private, not public) and then only the accessed class(es) would get initialized.