Formatting Numbers Output

package formatting.numbers;

import java.util.Locale;
import java.util.Scanner;

public class FormattingNumbers {

    public static void main(String[] args) {
        Locale.setDefault(Locale.ROOT);

        Scanner input = new Scanner(System.in);
        int a = input.nextInt();

        while (a < 0 || a > 500) {
            System.out.println("Your input for \"a\" should be in the range 0 <= a <= 500: ");
            a = input.nextInt();
        }

        float b = input.nextFloat();
        float c = input.nextFloat();
        String aToHex = Integer.toHexString(a).toUpperCase();
        String aToBinary = String.format("%10s", Integer.toBinaryString(a)).replace(' ', '0');

        //printing
        System.out.printf("|%-10s|%s|%10.2f|%-10.3f|" ,aToHex,aToBinary,b,c);
    }

}