Rust Program - Read and Write a File, Part 1

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 Reads and Prints a File

This program opens a file called example.txt in read-only mode, reads it line by line, and prints each line to the console. 


Writes to a File

It then opens a file called output.txt in write-only mode and writes the string "Hello, world!" to it. 


The unwrap() Method Handles Errors

The unwrap() method is used to handle any errors that might occur when opening or writing to the files.



Image by 200 Degrees from Pixabay 


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