How to convert String to Float in Rust - Step by Step Examples

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How to convert String to Float in Rust ?

Answer

To convert a string to a float in Rust, you can use the 'parse()' method and 'unwrap()' to handle the Result.

✐ Examples

1 Convert "3.14" String to Float

In this example,

We create a string variable str1 with a value of "3.14".
We use the parse() method to convert the string to a float and use unwrap() to handle the Result, storing the float value in float1.
Finally, we print the float value float1.

Rust Program

// Convert "3.14" String to Float
fn main() {
    let str1 = "3.14";
    let float1: f32 = str1.parse().unwrap();
    println!("Float value is: {}", float1);
}

Output

Float value is: 3.14

2 Convert "10.5" String to Float

In this example,

We create a string variable str2 with a value of "10.5".
We use the parse() method to convert the string to a float and use unwrap() to handle the Result, storing the float value in float2.
Finally, we print the float value float2.

Rust Program

// Convert "10.5" String to Float
fn main() {
    let str2 = "10.5";
    let float2: f32 = str2.parse().unwrap();
    println!("Float value is: {}", float2);
}

Output

Float value is: 10.5

Summary

In this tutorial, we learned How to convert String to Float in Rust language with well detailed examples.

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How to convert String to Float in Rust - Step by Step Examples

How to convert String to Float in Rust ?

Answer

✐ Examples

1 Convert "3.14" String to Float

Rust Program

Output

2 Convert "10.5" String to Float

Rust Program

Output

Summary

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