Garbage collecting and Singleton class's

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#8142

From: Calvin R. Smith
Date: Fri, 20 Apr 2001 21:01

28 lines
1524 bytes

If I have a singleton class defined like the one below will it ever be
garbage collected after getInstance has been called or will the static
reference keep the object in memory forever?

public class Singleton
{
  private static Singleton singleton = null;

  private Singleton()
  {
    System.out.println("I've been created");
  }

  public synchronized static Singleton getInstance()
  {
    if (singleton == null)
    {
      singleton = new Singleton();
    }
    return singleton;
  }

  protected void finalize()
    throws Throwable
  {
    System.out.println("i've been finalized");
  }
}

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From: "Calvin R. Smith" <calvinrsmith@hotmail.com>
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Subject: Garbage collecting and Singleton class's
Date: Fri, 20 Apr 2001 15:01:57 -0600
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