Explain struct methods and associated functions in Rust.

Methods and associated functions: • Methods take &self, &mut self, or self • Associated functions don't take self • Defined in impl blocks • :: syntax for associated functions • . syntax for methods Example: struct Rectangle { width: u32, height: u32, } impl Rectangle { // Associated function (constructor) fn new(width: u32, height: u32) -> Rectangle { Rectangle { width, height } } // Method fn area(&self) -> u32 { self.width * self.height } } let rect = Rectangle::new(10, 20); let area = rect.area();