Question

I would like to place a recursive function within a thread runnable run() method – here is an example fragment..

yt[c] = new Thread (
   new Runnable() {
    public void run() {
    /* recursive function here */
    }
    }
 );

Is their any way to implement this within the run() method? Effectively embedding a method within a method (I’m assuming a recursive function has to be implemented as a method)?

As a trivial example say how would I implement n! within a run() method (recursively not iterated)? I am puzzled.

Many thanks.

Answer 1

Effectively embedding a method within a method

Well, you won’t embed the method in the run method itself. Rather just add one more method in addition to run and call it: –

new Thread (
   new Runnable() {
        public void run() {
           /* recursive function here */
           fact(10);
        }

        private void fact(int n) {
            // logic
        }
    }
 );

Since with new Runnable() { }, you are just creating a anonymous class implementing the Runnable interface, so, there is no one stopping you from adding your own extra method. And probably you can also make it private, as you won’t be using it from outside.