The red J logo in the lower left corner of the IDEA java class file (solution)

Enterprise 2023-07-21 02:13:32 views: null

I have encountered this situation several times, thinking that I must write it down, or I will have to slowly find the solution in the future. A
red J logo appears in the lower left corner of the IDEA java class file, as shown in the figure:

insert image description here
Solution:

File>>project structure>>Modules
insert image description here

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Origin blog.csdn.net/sand_wich/article/details/106220816

The red J logo in the lower left corner of the IDEA java class file (solution)

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