This program demonstrates how to create a Circle class in Java. The Circle class has two instance variables: radius (of type double) and color (of type java.awt.Color). The Circle class includes ...

If Listing 2 is stored in Drawable.java, which is in the same directory as Circle.java, Rectangle.java, Fillable.java, ... You’ll observe the following output: Drawing circle ...

Java's Formatter class allows you to format data before it is output. With the Formatter, you can define the maximum width of a value, and the Formatter then automatically pads the value with ...

Learn the four types of polymorphism in Java, ... You should observe the following output: Drawing circle (10, 20, 30) Drawing rectangle (20, 30, 40, 50) Abstract classes and methods.