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Reflection is the ability of a computer program to examine, introspect, and modify its own structure and behavior at runtime.

120 votes
Accepted

Why is it a bad idea to create a generic setter and getter with reflection?

Downsides of reflection in general Reflection is harder to understand than straight-line code. In my experience, reflection is an "expert-level" feature in Java. … Reflection code is just slow in general The dynamic method lookup and type checking necessary for reflection code is slower than normal method calls. …
Sebastian Redl's user avatar
5 votes

Why should I use reflection?

Fundamentally, reflection means using the code of your program as data. Therefore, using reflection might be a good idea when your program's code is a useful source of data. … Reflection allows you to define a new class using this algorithm. …
Sebastian Redl's user avatar