Re: REAL SSCCE of my graphical interface with memory leaks

Sal wrote:


The whole screen? Please don't do this. I changed it to:

// Dimension screenSize =
//Toolkit.getDefaultToolkit().getScreenSize();
     Dimension screenSize = new Dimension( 300, 300 );


The String here is broken, doesn't compile. I fixed it, but please watch
this when you are posting code.

 > If i see the memory occupation of the program (CTRL+ALT+CANC
 > java.exe application) i can see that the memory start from 14.600 KB
 > and then grows up...
 >
 > Why it appends?

Mine grows up to 60MB up from 55MB, then goes back down to 54MB and
starts growing again. This is normal for the JVM garbage collection.
Are you sure you have a leak?

Also:
             public void actionPerformed(ActionEvent e) {
                 Calendar now = Calendar.getInstance();
                 day = now.get(Calendar.DAY_OF_MONTH);
                 mese = now.get(Calendar.MONTH) + 1;
                 anno = now.get(Calendar.YEAR);
                 h = now.get(Calendar.HOUR_OF_DAY);
                 m = now.get(Calendar.MINUTE);
                 s = now.get(Calendar.SECOND);
                 timeField.setText("Data: " + day + "-" + mese
                         + "-" + anno
                         + "Ore: " + h + ":" + m + ":" + s);
             }

This strikes me as a really good way to have a serious problem. You're
updating a JComponent ("timeField") on a thread that is not the AWT
event thread. I think you should dump this whole method into an
invokeLater() method.