java程序中是否要清理“从未使用导入”

Question

java程序中“从未使用的导入”要不要清理，清理的理由是什么

Answer 1

I always use ctrl+shift+o

Answer 2

Unused imports have no impact on performance. For details, please refer to the Java Virtual Machine Specification

Answer 3

The reason why I clean up is because I feel unhappy when I see warnings and have obsessive-compulsive disorder tendencies.

Answer 4

It doesn’t matter, for the simplicity of code use ctrl + shit + o you can import necessary packages and delete unnecessary packages