Answer:
Polymorphism
Explanation:
You can have a basic button class that gets inherited by other classes.
class Button {
function pushButton(){}
}
class ElevatorButton extends Button{};
class BigRedButton extends Button{};
With these new classes, they inherit from the basic button class. They can decide what happens when the method pushButton() is called.
You don't need to worry about what pushButton() actually does, you can just call it if the object is of the type "Button" and you can expect it to work.
Making charts, files that need complicated calculations
Answer:
1. You want to use parameters
2. You don't want your program to run multiple times
3. You want to call that snippet of code throughout your program
hope this helped :D
Steps of Booting
The Startup. It is the first step that involves switching the power ON. ...
BIOS: Power On Self Test. It is an initial test performed by the BIOS. ...
Loading of OS. In this step, the operating system is loaded into the main memory. ...
System Configuration. ...
Loading System Utilities. ...
User Authentication.