java - getName() from class Thread -

why have access getname() method? class doesn't extends class thread implements interface runnable.

public class mythread implements runnable {     public void run() {         system.out.println("mythread running");     }      public static void main(string[] args){         mythread thread1 = new mythread();         thread thr = new thread(thread1, "thread");         thr.start();         system.out.println(thr.currentthread().getname());         system.out.println(thr.getname());//why have access method?     } } 

you're not calling getname() on instance of mythread class, you're calling on instance of thread class. should consider renaming class myrunnable because mythread seem class sort of thread class, while isn't.