How to get all methods a class is using

Question

I need to find a way to find all the methods a class is using (watch out, it’s not the methods stated in it). EX:

public class Bondia{
    public static void main(String[] args){
    System.out.println("oi");
    System.out.println(new Random().nextInt(10));
    }
}

In this class, for example, I need to list the methods:

• System.out.println();
• java.util.Random.nextInt();
• and preferably the builder as well (new java.util.Random());

Someone knows a way to do that?