Wrote program for Day 54

README.md

@@ -100,7 +100,7 @@ We encourage you to share your progress and ask questions in the Discussions sec
 | Day #51       | [Asteroid Collision](https://github.com/LiveGray/100-Days-Of-Rust/tree/main/Week-08/Day-51_Asteroid-Collision)                    | :white_check_mark:      |
 | Day #52       | [Switch On The Gravity](https://github.com/LiveGray/100-Days-Of-Rust/tree/main/Week-08/Day-52_Switch-On-The-Gravity)                 | :white_check_mark:      |
 | Day #53       | [Javelin Parabolic Throw](https://github.com/LiveGray/100-Days-Of-Rust/tree/main/Week-08/Day-53_Javelin-Parabolic-Throw)               | :white_check_mark:      |
-| Day #54       | [RGB To Hex Color Convertor](https://github.com/LiveGray/100-Days-Of-Rust/tree/main/Week-08/Day-54_RGB-To-Hex-Color-Converter)            | :white_large_square:      |
+| Day #54       | [RGB To Hex Color Convertor](https://github.com/LiveGray/100-Days-Of-Rust/tree/main/Week-08/Day-54_RGB-To-Hex-Color-Converter)            | :white_check_mark:      |
 | Day #55       | [Filter Repeating Character Strings](https://github.com/LiveGray/100-Days-Of-Rust/tree/main/Week-08/Day-55_Filter_Repeating-Character-Strings)    | :white_large_square:      |
 | Day #56       | [Convert To Hex](https://github.com/LiveGray/100-Days-Of-Rust/tree/main/Week-08/Day-56_Convert-To-Hex)                        | :white_large_square:      |
 | Day #57       | [Magic Sigil Generator](https://github.com/LiveGray/100-Days-Of-Rust/tree/main/Week-09/Day-57_Magic-Sigil-Generator)                 | :white_large_square:      |

Week-08/Day-54_RGB-To-Hex-Color-Converter/day54/Cargo.toml

@@ -0,0 +1,6 @@
+[package]
+name = "day54"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]

Week-08/Day-54_RGB-To-Hex-Color-Converter/day54/src/lib.rs

@@ -0,0 +1,3 @@
+pub fn rgb_to_hex(r: u8, g: u8, b: u8) -> String {
+    format!("#{:02x}{:02x}{:02x}", r, g, b)
+}

Week-08/Day-54_RGB-To-Hex-Color-Converter/day54/src/main.rs

@@ -0,0 +1,25 @@
+use std::io::{self, Write};
+use std::process::exit;
+
+use day54::rgb_to_hex;
+
+fn read_u8(request: &str) -> Result<u8, Box<dyn std::error::Error>> {
+    print!("{}", request);
+    io::stdout().flush()?;
+    let mut input = String::new();
+    io::stdin().read_line(&mut input)?;
+    input.trim().parse::<u8>().map_err(|e| e.into())
+}
+
+fn show_error(e: Box<dyn std::error::Error>) -> u8 {
+    eprintln!("Error: {}", e);
+    exit(1);
+}
+
+fn main() {
+    let r = read_u8("Enter the red value: ").unwrap_or_else(show_error);
+    let g = read_u8("Enter the green value: ").unwrap_or_else(show_error);
+    let b = read_u8("Enter the blue value: ").unwrap_or_else(show_error);
+    let hex = rgb_to_hex(r, g, b);
+    println!("rgb({}, {}, {}) = {}", r, g, b, hex);
+}

Week-08/Day-54_RGB-To-Hex-Color-Converter/day54/tests/examples.rs

@@ -0,0 +1,19 @@
+#[cfg(test)]
+mod examples {
+    use day54::rgb_to_hex;
+
+    #[test]
+    fn example1() {
+        assert_eq!(rgb_to_hex(0, 128, 192), "#0080c0");
+    }
+
+    #[test]
+    fn example2() {
+        assert_eq!(rgb_to_hex(45, 255, 192), "#2dffc0");
+    }
+
+    #[test]
+    fn example3() {
+        assert_eq!(rgb_to_hex(0, 0, 0), "#000000");
+    }
+}