How is passing a function to a Java object implemented?

Question

Java

An object of a simple class is created: At the same level, there is a method
MediaProfiler profiler = new MediaProfiler();

void f() {
        Log.e("TAG", "d");
}

How can I pass the "f()" method to the "profiler" object?
Speaking in pseudocode, it is possible through such an unusual implementation:

void f() {
        Log.e("TAG", "d");
}
private void spot() {
        profiler = new MediaProfiler();
        profiler.onRun=f; //но не работает
}
public class MediaProfiler {

    public MediaProfiler() {
    //...
    }

    public void onRun() {
    //изменится после изменения
    }
}

Answer 1

class SomeClass {
    void f() {
        Log.e("TAG", "d");
    }

    private void spot() {
        profiler = new MediaProfiler();
        profiler.onRun(SomeClass::f);
    }
}

public class MediaProfiler {
    public void onRun(Runnable f) {
        f.run()
    }
}

Relevant section of the documentation.

Answer 2

Add styles to the picture:

display: inline-block;
vertical-align: bottom;