5.6
1.
To scale the panel size to the image displayed, use the getPanelWidth() and getPanelHeight() functions
2.
Circle(double x, double y, double r, Color c)
double z = scanner.nextDouble()
void setRadius(double z)
3.
for detecting mouse motion, the method MouseMotionAdapter is used.
for detecting mouse clicking, the method MouseAdapter is used.
6.8
1.
to set up a timer, you must use the methods start and actionPerformed. [...]
