Re: a tight game loop in Swing

Lew <>
Wed, 06 Jun 2012 23:58:37 -0700
Knute Johnson wrote:

Lew wrote:

John B. Matthews wrote:

This reminds of an example adduced by Knute Johnson:


Ten points for using the word "adduced".

There are some EDT violations in the cited code's 'main()' routine.

Here's the updated code with that fixed.

import java.awt.*;
import java.awt.event.*;
import java.awt.geom.*;
import java.awt.image.*;
import java.lang.reflect.*;
import javax.swing.*;

public class test3 extends JPanel implements Runnable {
    volatile BufferedImage bi;
    volatile long then;

I am curious what motivated the choice of 'volatile'.

In my own case I will sometimes speculatively use 'volatile' to mark fields
not essential to state despite that the class does not implement
'Serializable'. While this violates the rigid rule prohibiting superfluity, I
aver that the marker aids reasoning about the state in such cases.

This doesn't seem to be that.

Honi soit qui mal y pense.

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