Quiz

Question 1

Will the following code compile?

fn main() {
 let v;
}

Yes No

Question 2

Label each of the following numerical values with their number bases (decimal, octal, binary or hexadecimal) by filling in the blanks:

57 is
0o10 is
0x40 is
0b1010 is

Question 3

What is the printed output of the following code?

struct Precise3DPoint {x: f32, y: f32, z: f32}

fn main() {
 let p = Precise3DPoint {x: 32.456, y: 12.321, z: 98.546};
 println!("{}", p.z)
}

Output:

Question 4

Will the following code compile?

fn main() {
 println!("{}", reverse(100, 10))
}

fn reverse(i, j) -> (i32, i32) {
 (j, i)
}

Yes No

Question 5

Fill in the missing upper bound of the for loop so that the main function prints the five times table up to 60.

fn main() {
 for i in 1.. {
  println!("{}", 5*i);

 }
}