Stuck on java operators.

Question

Hi guys, I need a little help. What was my mistake? "Bad operand type for binary operator *" error.

import java.util.Scanner;

public class Main {

public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
double pi = 3.14;
//your code
double rad = scanner * 2 * pi;
System.out.println(rad);
}
}

Answer 1

To get a double value from the user, you should use scanner.nextDouble() instead of scanner.

https://www.sololearn.com/learn/Java/2220/

Answer 2

Now I understand. Thank you for your help, big brother.

Answer 3

Java has Math.PI