rust_learning/rectangles/src/main.rs

55 lines
1.1 KiB
Rust

#[derive(Debug)]
struct Rectangle {
width: u32,
height: u32,
}
impl Rectangle {
fn area(&self) -> u32 {
self.width * self.height
}
fn add_height(&mut self) {
self.height += 1;
}
fn can_hold(&self, other: &Rectangle) -> bool {
self.width >= other.width && self.height >= other.height
}
fn square(size: u32) -> Rectangle {
Rectangle {
width: size,
height: size,
}
}
}
fn main() {
let mut rect1 = Rectangle {
width: 30,
height: 50,
};
let rect2 = Rectangle {
width: 10,
height: 40,
};
let rect3 = Rectangle {
width: 60,
height: 45,
};
let square1 = Rectangle::square(20);
println!(
"The area of the rectangle is {} square pixels.",
rect1.area()
);
println!(
"The area of the square is {} square pixels.",
square1.area()
);
rect1.add_height();
println!("{:#?}", rect1);
println!("Can rect1 hold rect2? {}", rect1.can_hold(&rect2));
println!("Can rect1 hold rect3? {}", rect1.can_hold(&rect3));
}