binario > decimal

package calculoNumerico;

import java.util.Scanner;

public class BinarioDecimal {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        String entrada = sc.next();
        int potencia = 0;
        int decimal = 0;

        for (int i = entrada.length() - 1; i >= 0; i--) {
            decimal += Math.pow(2,potencia) * Character.getNumericValue(entrada.charAt(i));
            potencia++;
        }
        System.out.println(decimal);
    }
}