Convert function as parameter from Kotlin to Java

In kotlin, I have a function like this:

    fun show(string: String, onClose: () -> Unit) {
        // do somthing with onClose()
    }

and call this function:

   Utils.show("abc") {
      Log.d("show", "abc")
   }

And I want to know how to call show() function in a Java class, I can't put onClose function as param in java

Thank you.