Suppose you have to design an application for drawing 2D geometric shapes. Some shapes are complex and may contain one or more shapes, basic or complex. For instance, a House shape includes 3 Rectangle (basic) shapes, a Chimney shape, and an Ellipse (basic) shape. The Chimney is a complex shape and includes 4 Line shapes. A complex shape behaves like a basic shape but also allows one to add/remove basic shapes to/from it. What design pattern must be applied to these shape concepts

The most common battery cable terminal is a that provides a large surface contact area with the ability to tighten the terminal onto the battery post using a nut and bolt.

Which network media uses different regions of the electromagnetic spectrum to transmit signals through air? uses different regions of the electromagnetic spectrum to transmit signals through air.

Which of the following statements is false? a. a class can directly inherit from class object. b. if the class you're inheriting from declares instance variables as private, the inherited class can access those instance variables directly. c. a class's instance variables are normally declared private to enforce good software engineering. d. it's often much more efficient to create a class by inheriting from a similar class than to create the class by writing every line of code the new class requires.