trait Animal {

    fn create(name:&'static str) ->Self;
    fn name(&self)->&'static str;
    fn talk (&self) {
        println!("{} cannot talk",self.name());
    }
}
struct Human {
    isim:&'static str
}
struct Cat {
    name:&'static str
}
impl Animal for Human {
    fn create(name:&'static str)->Human {
        Human{isim:name}
    }
    fn name(&self)->&'static str {
        self.isim
    }

  fn talk (&self) {
    println!("{} says hello",self.name());
   }

}
impl Animal for Cat {
    fn create(name:&'static str)->Cat {
        Cat{name:name}
    }
   fn name(&self)->&'static str {
        self.name
    }

  fn talk (&self) {
        println!("{} says meow",self.name());
    }

}
trait Summable<T> {
    fn sum(&self)->T;
}
impl Summable<i32> for Vec<i32>
{
    fn sum(&self) -> i32 {
        let mut result: i32 = 0;
        for x in self { result += *x;
        }
        result
    }
}
fn traits(){

    //let h= Human{isim:"Enes"};
    //let h=Human::create("Ahmet");
    let h:Human = Animal::create("Samet");
    h.talk();

    let c= Cat{name:"Toprak"};
    c.talk();

    let a =vec![1,2,3,8,12];
    println!("{:?}",a);
    println!("sum = {}",a.sum());

}
fn main() {
    traits();
}