Question

Assuming that this is the scenario:

class A extends TimerTask{
  int a;
  public void run(){
    //operation to be performed periodically
  }
}

and

class B{
  int delay=2000,interval=3000;
  A objectA;
  public static void main(String[] args){
    Timer t=new Timer();
    t.scheduleAtFixedRate(new A(),delay,interval);
  }
}

Can’t run() return objects? If I make such a change, incompatibility is cited. Why?

Answer 1

As you can see in the method-declaration, the returntype of run is void. Therefore the method can’t directly return an object. But what you can do, is storing an object at the instance-level of class A and declaring a method on A from which you can get the stored object, when it’s operation is finished