Meaning of granularity in OOP [closed]

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I was reading about the flyweight design pattern on this page.
I was not able to understand the meaning of the "granularity" in the context of programming languages or the design pattern.

Can anyone please explain, an example would be great.

Answer 1

Granularity is a level of details. Granular objects are those, which are at low level detail in your program. Consider:

• trees in game landscape
• characters in document
• seats in cinema
• power points in cad application

Usually you have many granular objects in application. If you will create separate object for each tree/character/seat/power-point it could be very memory-consuming. Thats the problem which is solved by Flyweight pattern.