Java initialize question

Question

What does the below code do when you instantiate the StudentRegistrar class?

public class StudentRegistrar
{
    public StudentRegistrar ();
    {
        new RecordManager().Initialize();
    }
}

sjr · Accepted Answer · 2011-01-06 09:24:09Z

4

It doesn't necessary destroy the RecordManager immediately. Initialize() may spawn a new thread which can then hold a reference to the RecordManager. Since new threads are a garbage collection root, the RecordManager reference will be reachable from that root and therefore it will not be cleaned up.

It really depends on what Initialize does!

answered Jan 6, 2011 at 9:24

sjr

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trojanfoe · Accepted Answer · 2011-01-06 09:21:45Z

1

It creates an instance of RecordManager, calls the Initialize() method and then destroys the instance of RecordManager.

EDIT: Actually it won't compile due to the spurious ;

answered Jan 6, 2011 at 9:21

trojanfoe

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3 Comments

Sean Patrick Floyd Over a year ago

destroys the instance of RecordManager should be replaced by makes the instance of RecordManager available for Garbage Collection

LINEMAN78 Over a year ago

@Sean I agree that the word destroys is incorrect, however saying that it is made available for garbage collection makes a lot of assumptions and is only true if the initialize function doesn't create an object that maintains a strong or soft reference to the RecordManager instance. sjr's response is more technically accurate.

Sean Patrick Floyd Over a year ago

@LINEMAN78 sjr is making just as many assumptions. Either answer is correct, depending on who's assumptions are correct

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