Q:

Rust program to read text from a file

belongs to collection: Rust File I/O Programs

YasminRadwan26
Save to bookmark
|
2022-07-19
|
  300 
0

In this program, we will open an existing file and read text from the file using the read_to_string() method, and print text data.

RUST programming, examples, RUST programming examples,
login and add your own answer to this question

All Answers

YasminRadwan26
2022-07-19
need an explanation for this answer? contact us directly to get an explanation for this answer

Program/Source Code:

The source code to read text from a file is given below. The given program is compiled and executed on UBUNTU 18.04 successfully.

// Rust program to read text from a file.

use std::io::Read;

fn main(){
   let mut fileRef = std::fs::File::open("sample.txt").unwrap();
   let mut data = String::new();
   
   fileRef.read_to_string(&mut data).unwrap();
   
   print!("FILE DATA:\n{}", data);
}

Output:

$ rustc main.rs

$ ./main
File Data:
Hello World
Hello India

Explanation:

Here, we opened an existing file "sample.txt" using File::open() function. Then we read text data from the file using the read_to_string() method and printed file data.

need an explanation for this answer? contact us directly to get an explanation for this answer

total answers (1)

Rust File I/O Programs
This question belongs to these collections

Similar questions

need a help?

find thousands of online teachers now
Rust program to append data into an existing file... >>
<< Rust program to write text into the file...