Java Programming for Complete Beginners - Java 16 - Step 03 - OOPS Example - Fan Class - Deciding Behavior with Methods

The video tutorial discusses designing a fan class in object-oriented programming. It covers creating methods to control the fan's state and speed, emphasizing the importance of thinking from the consumer's perspective. The tutorial explains how to implement methods like 'switch on', 'switch off', and 'set speed', and highlights the significance of designing user-friendly APIs. The video concludes with an exercise to apply these concepts to a rectangle class.

What are the two main attributes of a fan object that can change after its creation?

• Brand and model

• Material and size

• On/off state and speed

• Color and radius

Why is it better to use methods like 'switch on' and 'switch off' instead of simple boolean setters?

• They require less code

• They provide a more user-friendly API

• They are faster to execute

• They are more complex to implement

What happens to the fan's speed when it is switched off?

• It doubles

• It is set to zero

• It increases by one

• It remains the same

What is the default speed set when the fan is switched on?

• Five

• Three

• Zero

• Ten

What is the main focus when designing methods for a class?

• The complexity of the code

• The speed of execution

• The ease of use for the consumer

• The number of methods

What should be considered when creating a class like a rectangle?

• The weight and material

• The brand and model

• The constructors and operations allowed

• The color and texture

What is a poor practice when designing object methods?

• Using descriptive method names

• Considering user interaction

• Implementing complex logic

• Using only getters and setters