Merge pull request 'Fix code.' (#2) from viridian/physik_test:main into main

Reviewed-on: #2

src/main.rs

@@ -6,18 +6,17 @@ fn main() {
         println!("Do you want to add {} to the number", rng);
         println!("Your number is {}(y/n)", number);
         let mut input: String = String::new();
-        std::io::stdin().read_line(&mut input).expect("Failed to read line");
-        let input: String = input.trim().parse().unwrap();
-        let yes:String = String::from("y");
-        let no = String::from("n");
-        if input == yes {
-            let number = number+=rng;
-        }
-        else if input == no {
-            println!("maby the next number");
-        }
-        else {
-            println!("Invalid input");
+        std::io::stdin()
+            .read_line(&mut input)
+            .expect("Failed to read line");
+        let input = input.trim(); // Parse is for numbers we use letters here. A &str is more usefull in this case as we dont want to mutate  it
+        match input { // Match is a better way then chaining if/else expressions.
+            "y" => number += rng, // let expression would have shadowed the original variable and would have droped to soon. Use add assign insted
+            "n" => continue,
+            _ => {
+                println!("Option unknown")
             }
         }
     }
+}
+