ToDo4

import java.util.Scanner;

public class ToDo4 {
    public static void main(String[] args) {
        Scanner s = new Scanner(System.in);
        System.out.println("Enter binary number: ");
        int binary = s.nextInt();
        int decimal = 0;
        int power = 0;
        while (binary != 0) {
            decimal += ((binary % 10) * Math.pow(2, power));
            binary = binary / 10;
            power++;
        }
        System.out.println("Decimal number: " + decimal);
        /*
        String bin = "1010";
        int decimal2 = Integer.parseInt(bin, 2);
        System.out.println(decimal2);
        */
    }
}