fn main() {
    let a ="Hello".to_string();
    let b = a;

    //println!("{}",a); This will error because a no longer owns the string
    println!("{}",b);

    //simple types like number characters and booleans are copied not moved
    let c = 5;
    let d = c;
    println!("{}",c);
    println!("{}",d);

    // when ownership does not need to be moved clone can be used.
    let e ="Test".to_string();
    let f = e.clone();

    println!("{}",e);
    println!("{}",f);

    // references in cpp is called borrowing in rust
    let g = String::from("Reference test");
    let h = &g;

    println!("{}", g);
    println!("{}", h);

    // mutable references
    let mut i = String::from("Mutable Reference test");
    let j = &mut i;
    j.push('!');

    println!("{}", j);
    }