Questions ?? (Alarm example)

[hunter d]

hi,

Code:

13 public Alarm(long delta) { 14 //alarm goes off ’delta ’ (milliseconds) from now. 15 Date now = new Date() ; 16 alarmTime = new Date(now.getTime()+delta) ; 17 linkMe() ; 18 }

The questions is
In line 15 every time we create an object to get the time in line 16.
Can we do that in one step without create the object (now) ??
If not, after we use it, it will be removed by garbage collecter or it will be kept in the memory without doing anything?

[dinangkur]

Hi,

Main philosophy behind OOP is using object when needed it and destroy it when it is done. As in C++ grabage collection is needed to done through programming. In java it is down by Java itself, so you don't need to think about to clear the memory.

-DK
_________________
...we too are stardust...

[hunter d]

hi again,

well you didnt answer my question very well , there two point didnt answer them :

1- Can we do that in one step without create the object (now) ??

2- If not, after we use it, it will be removed by garbage collecter or it will be kept in the memory without doing anything?

[illusionist]

looks like some Java code to me than some pseudocode.In that case ur answers will be:

1.Yes.In that case line 15 would not exist and line 16 would have been:

Code:

alarmTime = new Date((new Date()).getTime()+delta) ;

2.If you would have created the object instance "now" then after line 18 "now" is no longer referenced.Garbage collector runs periodically, frees dynamically allocated memory that is no longer referenced. So "now" will be destroyed whenever garbage collector finds it not referenced.