Kotlin doesn't have the static keyword, but to achieve compatibility with Java, it provides support for it with annotations. Kotlin provides the @JvmStatic and @JvmField annotations, which, when applied to a member of a class, make it static.

In this example, the @JvmStatic annotation will tell the compiler to compile the annotated function to a static one, and the @JvmField will tell the compiler to compile the annotated property to a static field, without getters and setters:

class Static {
    companion object {
        
        // static method
        @JvmStatic
        fun staticFunction() {

        }
        
        // static field
        @JvmField
        val staticField = 0
    }
}