Question

Could someone explain me some situation (example) when we can use this construction?

try{

        //dangerous code here
    } finally {

        //always called    
    }

I really understand how it works but newer use in real situation.

Answer 1

try {
    isWorking = true
    //doStuff that might or might not succeed
    } finally {
    isWorking = false;
    }

another example:

public void actionPressed()
  {
    if( isLoading )
      return;
    try {
    isLoading= true;
    doTheLoad);
    } finally {
    isLoading = false;
    }    
  }