I am currently thinking about how to design a multithreading system in Java that needs to do some heavy network processing and database storage. The program will launch three basic threads at first. Along these basic threads, I would like to launch other threads not from the main program but from two of the threads. Is it possible for a thread to launch another thread leading to some sort of a hierarchy like:

```
> Parent ->t0 thread1 -> t1 tread1.1  
>        ->t0 thread2
>        ->t0 thread3 -> t2 thread3.1

t0= inital time
t1,t2 = time at a point in the running thread
t1 != t2 

```

If not could somebody provide a theoretical solution with references?