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Java Java Data Structures Efficiency! Design the UI

Andre Kucharzyk
Andre Kucharzyk
4,479 Points

Can somebody say more about why we use new BufferedReader

I know documentation is linked in teachers notes but the way its written doesn't get to me. Why we use BufferedReader ?

1 Answer

Ryan Sherry
Ryan Sherry
12,449 Points

Hi Andre,

I'm still learning a lot and I'm far from an expert but I'll be happy to answer to the best of my ability:


It sounds like a BufferedReader is used to wrap around the InputStreamReader. From what I understand, technically, we don't need it but if we don't use it, then each read request made of a reader causes another read request to happen for the underlying character or byte stream. In other words, it uses up a ton of resources.

Wrapping it in a BufferedReader prevents this from happening and makes things much more efficient.

Here is more information on buffering in computer science: