HomeWork7

Numbers2.java

import java.util.Scanner;

/**
 *
 * @author kamaz
 */
public class Main {
  
    public static void main(String[] args) {

	  Scanner sc = new Scanner(System.in);
	  String a;
	  System.out.println("Input numbers");
	  a = sc.nextLine();
	  System.out.println("The number is: " + getNumber(a));
    }

    public static int getNumber(String a) {
	  int n = 0;
	  char[] numbers = a.toCharArray();
	  for (int i = numbers.length - 1; i >= 0; i--) {
          	if (numbers[i] == '1') {
			n += (int) Math.pow(2, numbers.length - 1 - i);
          	}
          	else {
          	}
	  }
	  return n;
    }

}