
Syntax to draw an ellipse:
To draw an ellipse, either any one of the classes need to be used such as “Ellipse2D.Float” and “Ellipse2D.Double” and this class is used based on the ellipse co-ordinates of single or double precision floating values.
Consider the following code to construct an ellipse,
//Fix the co-ordinates and assign it to object “ellip1”
Ellipse2D.Double ellip1=new Ellipse2D.Double(x, y, width, height);
In the above code, the “Ellipse2D.Double” represents that there are two class names “Ellipse2D” and “Double” which is separated by period (.) symbol and it passes four co-ordinates namely “x”, “y”, “width”, and “height”.
Syntax to draw a circle:
To draw a circle, follow the same code but for width and height use the same values. Here, the circle is passed with “x-coordinate”, “y-coordinate”, and “diameter”.
//Fix the co-ordinates and assign it to object “cir1”
Ellipse2D.Double cir1=new Ellipse2D.Double(x, y, diameter, diameter);
//Call draw() to draw the circle
g2.draw(cir1);
Explanation:
- In the above code, “cir1” is the object name of the circle and it passes four parameters such as “x-coordinate”, “y-coordinate”, and “diameter”.
- Next, using the graphics object “g2”, call draw()method to draw the circle.

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Chapter 2 Solutions
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