Hi David,
I am not sure about the usage of this in the example you are asking
about. I think that this is overused in the example and may not be
necessary inside the paintComponent method (somebody please correct me
if I am wrong). I am also unsure about other times it may be useful.
Any light that others can shed on the subject would be helpful.
As for the different for loop:
for ( String line : this.lines )
paintString( g, line, height += step );
This means - for each String line in this.lines
It is a for each loop and is equivalent to using:
for (int i = 0; i < this.lines.length; i++){
String line = this.lines[i];
paintString( g, line, height += step );
}
I found this page that explains more:
http://www.leepoint.net/notes-java/flow/loops/foreach.html
Jeremy
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