Rust Tutorials

How to create a Set of Strings in Rust

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How to create a Set of Strings in Rust ?

Answer

In Rust, you can use a HashSet to store a collection of unique strings.

✐ Examples

1 Create Set of Strings in Rust

In this example,

We import the necessary modules to use HashSet.
We create a new HashSet named string_set to store unique strings.
We add strings to the HashSet using the insert method.

Rust Program

use std::collections::HashSet;

fn main() {
    // Create a HashSet for strings
    let mut string_set = HashSet::new();

    // Add strings to the HashSet
    string_set.insert("Apple".to_string());
    string_set.insert("Banana".to_string());
    string_set.insert("Cherry".to_string());

    // Print the HashSet
    println!("{:?}", string_set);
}

Output

{"Cherry", "Banana", "Apple"}

2 Check if Set Contains a String

In this example,

We use the contains method to check if a specific string exists in the HashSet.
The contains method returns true if the string is in the HashSet, otherwise false.

Rust Program

// Check if the HashSet contains a string
let contains_banana = string_set.contains("Banana");
println!("HashSet contains Banana: {}", contains_banana);

Summary

In this tutorial, we learned How to create a Set of Strings in Rust language with well detailed examples.

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Rust Tutorials

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How to create a Set of Strings in Rust

How to create a Set of Strings in Rust ?

Answer

✐ Examples

1 Create Set of Strings in Rust

Rust Program

Output

2 Check if Set Contains a String

Rust Program

Summary

More Rust Sets Tutorials