What am I doing wrong? Java IllegalFormatConversionException

Question

I have some code for calculating properties of a circle:

package circleinfo;

import java.util.Scanner;

public class Circleinfo {

    public static void ma         


        

Answer 1

r is an int, so r*2 is also an int, meaning that in your second print statement %f cannot be used. Try %d there instead.

Recall that %f is for floating point numbers while %d is for integers. This is outlined in the documentation of Formatter (see Format String Syntax).