Java error The system cannot find the specified file Causes and solutions

Exception in thread "main" java.io.FileNotFoundException: E:\photo.JPeG (The system cannot find the specified file.) ( Recommendation: java video tutorial)

Then go to the E drive and see that there are files. What’s going on? Then I wonder if the file format is correct, but I see in the directory that it is in jpeg format. no problem.

Later I learned that what is displayed in this place is not necessarily correct. You can display the extension name or open cmd, cd to the file directory and enter dir.
As you can see, the file format in cmd is no longer jpeg.

Changing JPEG to jpg will solve the problem.

Solutions to such problems:

1. Check whether the file name is correct

2. Check whether the file suffix is ​​correct

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