Exception in thread “main” java.io.FileNotFoundException: Error

Your file should directly be under the project folder, and not inside any other sub-folder.

So, if your project folder is MyProject, it’s folder structure(not complete though) should be like: –

MyProject +- src +
          |      |
          |      +-- Your source file
          +- file.txt

It should not be under src folder.

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Or, you can give the following path relative to the project folder to search for file in the src folder: –

new File("src/file.txt");