Write a Java program named CircleZapper that displays a circle with a radius of 10 pixels, filled with a random color at a random location on the screen. When you click the circle, it disappears and a new random color circle is displayed at another random location (see display below). After twenty circles are clicked, display the time spent in the pane. To detect whether a point is inside the circle, use the contains method defined in the Node class. You can capture the initial starting time with a statement like:

startTime = System.currentTimeMillis()